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2020

On the stress field ahead of a stationary crack tip during the transition from primary to secondary creep

Sanders, J. W., Dadfarnia, M., Sehitoglu, H., Stubbins, J. & Sofronis, P., Jun 1 2020, In : International Journal of Solids and Structures. 193-194, p. 455-473 19 p.

Research output: Contribution to journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

2007

Constitutive modeling of porous viscoelastic materials

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

Research output: Contribution to journalArticle

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 journalArticle

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 journalArticle

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 journalArticle

2005

Dislocation-obstacle interactions: Dynamic experiments to continuum modeling

Robertson, I. M., Beaudoin, A., 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 journalArticle

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 journalArticle

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 journalArticle

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 journalArticle