@article{56da8ee0a24f40a4a229fe2c8463356f,
title = "Role of cavities on deformation-induced martensitic transformation pathways in a laser-welded, neutron irradiated austenitic stainless steel",
abstract = "The role of cavities on deformation-induced martensitic phase transformations is studied in a laser-welded and neutron irradiated austenitic stainless steel. Orientation dependent nanoindentation experiments are performed in the base metal and the weld heat affected zone (HAZ) at room temperature. Transmission electron microscopy study of deformed microstructures indicates indentation-induced α{\textquoteright}-martensite forms in the base metal, whereas α{\textquoteright}- and ε-martensite arise in the HAZ. The different pathway of martensite phase transformation is attributed to the laser weld-induced annealing of cavities. Our results suggest that deformation-induced martensitic phase transformation of austenitic stainless steel is correlated to neutron irradiated cavity structures.",
keywords = "Austenitic stainless steel, Cavity, Laser weld, Martensitic transformation, Nanoindentation",
author = "Mao, {Keyou S.} and Cheng Sun and Shiau, {Ching Heng} and Yano, {Kayla H.} and Freyer, {Paula D.} and El-Azab, {Anter A.} and Garner, {Frank A.} and Aaron French and Lin Shao and Wharry, {Janelle P.}",
note = "KSM and CS were supported by the Idaho National Laboratory Directed Research & Development (LDRD) Program under U.S. Department of Energy (DOE) Idaho Operations Office Contract DE-AC07-051D14517. JPW was supported by the U.S. DOE, Office of Science, Basic Energy Sciences (BES), under award DE-SC0020150. Specimens were generated through support from the U.S. DOE Office of Nuclear Energy contract DE-NE0008525 with complementary Nuclear Science User Facilities (NSUF) access. The authors thank Ms. Jatu Burns, Dr. Yaqiao Wu, and Mr. Bryan Forsman from the Center for Advanced Energy Studies (CAES) for their assistance with specimen handling and microscopy. The authors also thank Mr. Priyam V. Patki from Purdue University for valuable discussions regarding the finite element modeling. KSM and CS were supported by the Idaho National Laboratory Directed Research & Development (LDRD) Program under U.S. Department of Energy (DOE) Idaho Operations Office Contract DE-AC07-051D14517 . JPW was supported by the U.S. DOE, Office of Science, Basic Energy Sciences (BES), under award DE-SC0020150. Specimens were generated through support from the U.S. DOE Office of Nuclear Energy contract DE-NE0008525 with complementary Nuclear Science User Facilities (NSUF) access . The authors thank Ms. Jatu Burns, Dr. Yaqiao Wu, and Mr. Bryan Forsman from the Center for Advanced Energy Studies (CAES) for their assistance with specimen handling and microscopy. The authors also thank Mr. Priyam V. Patki from Purdue University for valuable discussions regarding the finite element modeling.",
year = "2020",
month = mar,
day = "15",
doi = "10.1016/j.scriptamat.2019.10.037",
language = "English (US)",
volume = "178",
pages = "1--6",
journal = "Scripta Materialia",
issn = "1359-6462",
publisher = "Acta Materialia Inc",
}