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Petros Sofronis

1989 …2019
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Research Output 1989 2019

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Article
2019

A model for high temperature hydrogen attack in carbon steels under constrained void growth

Dadfarnia, M., Martin, M. L., Moore, D. E., Orwig, S. E. & Sofronis, P., Sep 1 2019, In : International Journal of Fracture. 219, 1

Research output: Contribution to journal › Article

Voids
Hydrogen
Carbon steel
Steel
Carbon

Assessment of resistance to fatigue crack growth of natural gas line pipe steels carrying gas mixed with hydrogen

Dadfarnia, M., Sofronis, P., Brouwer, J. & Sosa, S., Apr 23 2019, In : International Journal of Hydrogen Energy. 44, 21, p. 10808-10822 15 p.

Research output: Contribution to journal › Article

natural gas
Steel pipe
Fatigue crack propagation
Natural gas
cracks

Assessment of the impact of hydrogen on the stress developed ahead of a fatigue crack

Wang, S., Nagao, A., Sofronis, P. & Robertson, I. M., Aug 1 2019, In : Acta Materialia. 174, p. 181-188 8 p.

Research output: Contribution to journal › Article

Crack tips
Hydrogen
Crack propagation
Low carbon steel
Air

On the failure of surface damage to assess the hydrogen-enhanced deformation ahead of crack tip in a cyclically loaded austenitic stainless steel

Wang, S., Nygren, K. E., Nagao, A., Sofronis, P. & Robertson, I. M., Jun 2019, In : Scripta Materialia. 166, p. 102-106 5 p.

Research output: Contribution to journal › Article

austenitic stainless steels
crack tips
Austenitic stainless steel
Crack tips
Hydrogen
2018

Hydrogen-enhanced-plasticity mediated decohesion for hydrogen-induced intergranular and “quasi-cleavage” fracture of lath martensitic steels

Nagao, A., Dadfarnia, M., Somerday, B. P., Sofronis, P. & Ritchie, R. O., Mar 2018, In : Journal of the Mechanics and Physics of Solids. 112, p. 403-430 28 p.

Research output: Contribution to journal › Article

Martensitic steel
plastic properties
Plasticity
cleavage
steels

Hydrogen-modified dislocation structures in a cyclically deformed ferritic-pearlitic low carbon steel

Wang, S., Nagao, A., Sofronis, P. & Robertson, I. M., Feb 1 2018, In : Acta Materialia. 144, p. 164-176 13 p.

Research output: Contribution to journal › Article

Low carbon steel
Hydrogen
Fatigue crack propagation
Air
Gases

On the theoretical modeling of fatigue crack growth

Hosseini, Z. S., Dadfarnia, M., Somerday, B. P., Sofronis, P. & Ritchie, R. O., Dec 2018, In : Journal of the Mechanics and Physics of Solids. 121, p. 341-362 22 p.

Research output: Contribution to journal › Article

Fatigue crack propagation
plastics
cracks
Plastics
Crack propagation
2017

A microstructure-based mechanism of cracking in high temperature hydrogen attack

Martin, M. L., Dadfarnia, M., Orwig, S., Moore, D. & Sofronis, P., Nov 2017, In : Acta Materialia. 140, p. 300-304 5 p.

Research output: Contribution to journal › Article

Hydrogen
Microstructure
Grain boundaries
High temperature applications
Steel

On the fracture of high temperature alloys by creep cavitation under uniaxial or biaxial stress states

Sanders, J. W., Dadfarnia, M., Stubbins, J. F. & Sofronis, P., Jan 1 2017, In : Journal of the Mechanics and Physics of Solids. 98, p. 49-62 14 p.

Research output: Contribution to journal › Article

heat resistant alloys
cavitation flow
Superalloys
Cavitation
Creep
2016

Effect of hydrogen environment on the separation of Fe grain boundaries

Wang, S., Martin, M. L., Robertson, I. M. & Sofronis, P., Apr 1 2016, In : Acta Materialia. 107, p. 279-288 10 p.

Research output: Contribution to journal › Article

Hydrogen
Grain boundaries
Gases
Plasticity
Chemical potential
2015

Chemomechanical effects on the separation of interfaces occurring during fracture with emphasis on the hydrogen-iron and hydrogen-nickel system

Kirchheim, R., Somerday, B. & Sofronis, P., Aug 11 2015, In : Acta Materialia. 99, p. 87-98 12 p.

Research output: Contribution to journal › Article

Nickel
Hydrogen
Iron
Surface segregation
Chemical potential

Hydrogen Embrittlement Understood

Robertson, I. M., Sofronis, P., Nagao, A., Martin, M. L., Wang, S., Gross, D. W. & Nygren, K. E., Jun 1 2015, In : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 46, 6, p. 2323-2341 19 p.

Research output: Contribution to journal › Article

hydrogen embrittlement
Hydrogen embrittlement
Hydrogen
hydrogen
plastic properties

Hydrogen Embrittlement Understood

Robertson, I. M., Sofronis, P., Nagao, A., Martin, M. L., Wang, S., Gross, D. W. & Nygren, K. E., Jun 26 2015, In : Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science. 46, 3, p. 1085-1103 19 p., 325.

Research output: Contribution to journal › Article

hydrogen embrittlement
Hydrogen embrittlement
Hydrogen
hydrogen
plastic properties

Recent advances on hydrogen embrittlement of structural materials

Dadfarnia, M., Nagao, A., Wang, S., Martin, M. L., Somerday, B. P. & Sofronis, P., Nov 1 2015, In : International Journal of Fracture. 196, 1-2, p. 223-243 21 p.

Research output: Contribution to journal › Article

Hydrogen embrittlement
Hydrogen
Fatigue
Linking
Fatigue of materials
2014

Hydrogen-induced intergranular failure of iron

Wang, S., Martin, M. L., Sofronis, P., Ohnuki, S., Hashimoto, N. & Robertson, I. M., May 2014, In : Acta Materialia. 69, p. 275-282 8 p.

Research output: Contribution to journal › Article

Hydrogen
Iron
Chemical activation
Microstructure
Hydrogen embrittlement

Modeling hydrogen transport by dislocations

Dadfarnia, M., Martin, M. L., Nagao, A., Sofronis, P. & Robertson, I. M., Dec 15 2014, In : Journal of the Mechanics and Physics of Solids. 78, p. 511-525 15 p.

Research output: Contribution to journal › Article

Hydrogen
hydrogen
crack tips
Crack tips
plastic properties

On modeling hydrogen-induced crack propagation under sustained load

Dadfarnia, M., Somerday, B. P., Schembri, P. E., Sofronis, P., Foulk, J. W., Nibur, K. A. & Balch, D. K., Aug 2014, In : JOM. 66, 8, p. 1390-1398 9 p.

Research output: Contribution to journal › Article

Hydrogen
Crack propagation
Fracture toughness
Hydrogen embrittlement
Factor V

The effect of nanosized (Ti,Mo)C precipitates on hydrogen embrittlement of tempered lath martensitic steel

Nagao, A., Martin, M. L., Dadfarnia, M., Sofronis, P. & Robertson, I. M., Aug 1 2014, In : Acta Materialia. 74, p. 244-254 11 p.

Research output: Contribution to journal › Article

Martensitic steel
Hydrogen embrittlement
Precipitates
Hydrogen
Coalescence
2013

A microstructural based understanding of hydrogen-enhanced fatigue of stainless steels

Martin, M. L., Sofronis, P., Robertson, I. M., Awane, T. & Murakami, Y., Jan 1 2013, In : International Journal of Fatigue. 57, p. 28-36 9 p.

Research output: Contribution to journal › Article

Stainless Steel
Fatigue
Hydrogen
Microstructure
Stainless steel

Elucidating the variables affecting accelerated fatigue crack growth of steels in hydrogen gas with low oxygen concentrations

Somerday, B. P., Sofronis, P., Nibur, K. A., San Marchi, C. & Kirchheim, R., Sep 1 2013, In : Acta Materialia. 61, 16, p. 6153-6170 18 p.

Research output: Contribution to journal › Article

Steel
Fatigue crack propagation
Hydrogen
Gases
Oxygen

The relationship between crack-tip strain and subcritical cracking thresholds for steels in high-pressure hydrogen gas

Nibur, K. A., Somerday, B. P., Marchi, C. S., Foulk, J. W., Dadfarnia, M. & Sofronis, P., Jan 1 2013, In : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 44, 1, p. 248-269 22 p.

Research output: Contribution to journal › Article

Steel
crack tips
Crack tips
Hydrogen
Gases
2012

Full field measurements of anisotropic stress intensity factor ranges in fatigue

Pataky, G. J., Sangid, M. D., Sehitoglu, H., Hamilton, R. F., Maier, H. J. & Sofronis, P., Nov 1 2012, In : Engineering Fracture Mechanics. 94, p. 13-28 16 p.

Research output: Contribution to journal › Article

Stress intensity factors
Crack tips
Fatigue of materials
Plastics
Crystallography

Hydrogen embrittlement of high strength steels: Determination of the threshold stress intensity for small cracks nucleating at nonmetallic inclusions

Murakami, Y., Kanezaki, T. & Sofronis, P., 2012, In : Engineering Fracture Mechanics. 97, 1, p. 227-243 17 p.

Research output: Contribution to journal › Article

Hydrogen embrittlement
High strength steel
Cracks
Hydrogen
Stress intensity factors

Hydrogen-induced intergranular failure in nickel revisited

Martin, M. L., Somerday, B. P., Ritchie, R. O., Sofronis, P. & Robertson, I. M., Apr 1 2012, In : Acta Materialia. 60, 6-7, p. 2739-2745 7 p.

Research output: Contribution to journal › Article

Nickel
Hydrogen
Hydrogen embrittlement
High resolution electron microscopy
Focused ion beams

Japan's energy supply: Mid-to-long-term scenario - A proposal for a new energy supply system in the aftermath of the March 11 earthquake

Onoue, K., Murakami, Y. & Sofronis, P., May 2012, In : International Journal of Hydrogen Energy. 37, 10, p. 8123-8132 10 p.

Research output: Contribution to journal › Article

proposals
Japan
Earthquakes
earthquakes
Hydrogen storage

The role of hydrogen in hydrogen embrittlement fracture of lath martensitic steel

Nagao, A., Smith, C. D., Dadfarnia, M., Sofronis, P. & Robertson, I. M., Aug 1 2012, In : Acta Materialia. 60, 13-14, p. 5182-5189 8 p.

Research output: Contribution to journal › Article

Martensitic steel
Hydrogen embrittlement
Hydrogen
Plasticity
Focused ion beams
2011

Effect of ion irradiation-produced defects on the mobility of dislocations in 304 stainless steel

Briceño, M., Fenske, J., Dadfarnia, M., Sofronis, P. & Robertson, I. M., Feb 1 2011, In : Journal of Nuclear Materials. 409, 1, p. 18-26 9 p.

Research output: Contribution to journal › Article

Stainless Steel
Ion bombardment
ion irradiation
stainless steels
Stainless steel

Hydrogen interaction with multiple traps: Can it be used to mitigate embrittlement?

Dadfarnia, M., Sofronis, P. & Neeraj, T., Aug 1 2011, In : International Journal of Hydrogen Energy. 36, 16, p. 10141-10148 8 p.

Research output: Contribution to journal › Article

embrittlement
Embrittlement
traps
Hydrogen
hydrogen

Interpreting hydrogen-induced fracture surfaces in terms of deformation processes: A new approach

Martin, M. L., Robertson, I. M. & Sofronis, P., May 1 2011, In : Acta Materialia. 59, 9, p. 3680-3687 8 p.

Research output: Contribution to journal › Article

Hydrogen
Hydrogen embrittlement
Microstructure
Scanning electron microscopy
High resolution electron microscopy

On the environmental similitude for fracture in the SENT specimen and a cracked hydrogen gas pipeline

Dadfarnia, M., Sofronis, P., Somerday, B. P., Balch, D. K., Schembri, P. & Melcher, R., Aug 1 2011, In : Engineering Fracture Mechanics. 78, 12, p. 2429-2438 10 p.

Research output: Contribution to journal › Article

Gas pipelines
Hydrogen
Pipelines
Elastoplasticity
Hydrogen embrittlement

On the formation and nature of quasi-cleavage fracture surfaces in hydrogen embrittled steels

Martin, M. L., Fenske, J. A., Liu, G. S., Sofronis, P. & Robertson, I. M., Feb 1 2011, In : Acta Materialia. 59, 4, p. 1601-1606 6 p.

Research output: Contribution to journal › Article

Steel
Hydrogen
Microstructure
Coalescence
Electron microscopes
2010

A statistical, physical-based, micro-mechanical model of hydrogen-induced intergranular fracture in steel

Novak, P., Yuan, R., Somerday, B. P., Sofronis, P. & Ritchie, R. O., Feb 1 2010, In : Journal of the Mechanics and Physics of Solids. 58, 2, p. 206-226 21 p.

Research output: Contribution to journal › Article

steels
Hydrogen
Steel
carbides
Carbides

Recent advances in the study of structural materials compatibility with hydrogen

Dadfarnia, M., Novak, P., Ahn, D. C., Liu, J. B., Sofronis, P., Johnson, D. D. & Robertson, I. M., Mar 12 2010, In : Advanced Materials. 22, 10, p. 1128-1135 8 p.

Research output: Contribution to journal › Article

Hydrogen
Embrittlement
Degradation
Crack initiation
Chemical elements
2009

Chapter 91 Hydrogen Effects on Plasticity

Robertson, I. M., Birnbaum, H. K. & Sofronis, P., Aug 27 2009, In : Dislocations in Solids. 15, p. 249-293 45 p.

Research output: Contribution to journal › Article

Plasticity
Hydrogen
Plastic deformation

Effects of hydrogen on steady, ductile crack growth: Computational studies

Sobotka, J. C., Dodds, R. H. & Sofronis, P., Nov 1 2009, In : International Journal of Solids and Structures. 46, 22-23, p. 4095-4106 12 p.

Research output: Contribution to journal › Article

Crack Growth
Hydrogen
Crack propagation
cracks
hydrogen

Hydrogen-Assisted crack propagation in austenitic stainless steel fusion welds

Somerday, B. P., Dadfarnia, M., Balch, D. K., Nibur, K. A., Cadden, C. H. & Sofronis, P., Aug 10 2009, In : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 40, 10, p. 2350-2362 13 p.

Research output: Contribution to journal › Article

austenitic stainless steels
crack propagation
Austenitic stainless steel
Hydrogen
Crack propagation

Interaction of hydrogen transport and material elastoplasticity in pipeline steels

Dadfarnia, M., Somerday, B. P., Sofronis, P., Robertson, I. M. & Stalheim, D., Aug 1 2009, In : Journal of Pressure Vessel Technology, Transactions of the ASME. 131, 4, 041404.

Research output: Contribution to journal › Article

Elastoplasticity
Pipelines
Hydrogen
Steel
Crack tips
2008

Constitutive modeling of solid propellant materials with evolving microstructural damage

Xu, F., Aravas, N. & Sofronis, P., May 1 2008, In : Journal of the Mechanics and Physics of Solids. 56, 5, p. 2050-2073 24 p.

Research output: Contribution to journal › Article

solid propellants
Solid propellants
damage
Binders
voids

Effect of hydrogen trapping on void growth and coalescence in metals and alloys

Liang, Y., Ahn, D. C., Sofronis, P., Dodds, R. H. & Bammann, D., Mar 1 2008, In : Mechanics of Materials. 40, 3, p. 115-132 18 p.

Research output: Contribution to journal › Article

Coalescence
coalescing
voids
Hydrogen
Metals

Hydrogen/plasticity interactions at an axial crack in pipeline steel

Dadfarnia, M., Sofronis, P., Somerday, B. P. & Robertson, I. M., Jun 1 2008, In : Journal of ASTM International. 5, 6

Research output: Contribution to journal › Article

Steel
Plasticity
Hydrogen
Pipelines
Cracks

On the small scale character of the stress and hydrogen concentration fields at the tip of an axial crack in steel pipeline: Effect of hydrogen-induced softening on void growth

Dadfarnia, M., Sofronis, P., Somerday, B. P. & Robertson, I. M., May 1 2008, In : International Journal of Materials Research. 99, 5, p. 557-570 14 p.

Research output: Contribution to journal › Article

stress concentration
Steel
softening
voids
Hydrogen
2007

Constitutive modeling of porous viscoelastic materials

Xu, F., Sofronis, P., Aravas, N. & Meyer, S., Nov 1 2007, In : European Journal of Mechanics, A/Solids. 26, 6, p. 936-955 20 p.

Research output: Contribution to journal › Article

Porous materials
Porosity
porous materials
hydrostatics
porosity

On hydrogen-induced plastic flow localization during void growth and coalescence

Ahn, D. C., Sofronis, P. & Dodds, R. H., Nov 1 2007, In : International Journal of Hydrogen Energy. 32, 16, p. 3734-3742 9 p.

Research output: Contribution to journal › Article

plastic flow
Coalescence
Plastic flow
coalescing
voids

Void growth by dislocation-loop emission

Ahn, D. C., Sofronis, P., Kumar, M., Belak, J. & Minich, R., Apr 8 2007, In : Journal of Applied Physics. 101, 6, 063514.

Research output: Contribution to journal › Article

voids
hydrostatics
interstitials
micromechanics
annuli
2006

On the micromechanics of void growth by prismatic-dislocation loop emission

Ahn, D. C., Sofronis, P. & Minich, R., Apr 1 2006, In : Journal of the Mechanics and Physics of Solids. 54, 4, p. 735-755 21 p.

Research output: Contribution to journal › Article

micromechanics
Micromechanics
voids
Piles
Burgers vector
2005

Dislocation-obstacle interactions: Dynamic experiments to continuum modeling

Robertson, I. M., Beaudoin, A. J., Al-Fadhalah, K., Chun-Ming, L., Robach, J., Wirth, B. D., Arsenlis, A., Ahn, D. & Sofronis, P., Jul 25 2005, In : Materials Science and Engineering A. 400-401, 1-2 SUPPL., p. 245-250 6 p.

Research output: Contribution to journal › Article

continuum modeling
Dislocations (crystals)
Silver
Vacancies
Plasticity

High-temperature dislocation-precipitate interactions in Al alloys: An in situ transmission electron microscopy deformation study

Clark, B. G., Robertson, I. M., Dougherty, L. M., Ahn, D. C. & Sofronis, P., Jul 1 2005, In : Journal of Materials Research. 20, 7, p. 1792-1801 10 p.

Research output: Contribution to journal › Article

Precipitates
precipitates
Transmission electron microscopy
transmission electron microscopy
interactions

Void growth in power-law creeping solids: Effect of surface diffusion and surface energy

Subramanian, S. J., Sofronis, P. & Castaneda, P. P., Dec 1 2005, In : International Journal of Solids and Structures. 42, 24-25, p. 6202-6225 24 p.

Research output: Contribution to journal › Article

Surface Diffusion
Surface diffusion
Surface Energy
Voids
surface diffusion
2004

Interaction of hydrogen with crack-tip plasticity: Effects of constraint on void growth

Liang, Y., Sofronis, P. & Dodds, R. H., Feb 15 2004, In : Materials Science and Engineering A. 366, 2, p. 397-411 15 p.

Research output: Contribution to journal › Article

crack tips
plastic properties
Crack tips
Plasticity
voids

On hydrogen-induced void nucleation and grain boundary decohesion in nickel-base alloys

Liang, Y. & Sofronis, P., Oct 1 2004, In : Journal of Engineering Materials and Technology, Transactions of the ASME. 126, 4, p. 368-377 10 p.

Research output: Contribution to journal › Article

Nickel
voids
Hydrogen
Grain boundaries
Nucleation