文献类型：期刊文献

英文题名：Crystallographic orientation-dependent dislocations slip during tensile testing of lath martensitic steel

作者：Wang, Y. B. Zhao, F. Xu, F. H. Liang, Y. L. Lei, L. Yang, M. Long, S. L.

第一作者：Wang, Y. B.

通信作者：Yang, M[1];Long, S[2]

机构：[1]Guizhou Univ, Sch Mat & Met, Guiyang 550025, Peoples R China;[2]Guizhou Special Equipment Inspect & Testing Inst, Guiyang 550025, Peoples R China;[3]Yangtze Univ, Sch Phys & Optoelect Engn, Jingzhou 434023, Peoples R China;[4]Guizhou Inst Technol, Sch Mech Engn, Guiyang 550003, Peoples R China

第一机构：Guizhou Univ, Sch Mat & Met, Guiyang 550025, Peoples R China

通信机构：corresponding author), Guizhou Univ, Sch Mat & Met, Guiyang 550025, Peoples R China;corresponding author), Guizhou Inst Technol, Sch Mech Engn, Guiyang 550003, Peoples R China.|贵州理工学院机械工程学院;贵州理工学院;

年份：2023

卷号：353

外文期刊名：MATERIALS LETTERS

收录：;EI(收录号：20233814772952);Scopus(收录号：2-s2.0-85171619047);WOS:【SCI-EXPANDED(收录号:WOS:001083883800001)】；

基金：The authors acknowledge support from the Natural Science Foundation of Guizhou Province (Grant No. [2020] 1Z046, NO; ZK [2022] 023; [2020] 1Y199) .

语种：英文

外文关键词：In-situ EBSD; Multi-level microstructure; Martensite; Microstructure; Dislocation slip; Deformation compatibility

摘要：Based on observations of slip traces and variant-pair boundaries obtained through the transformation of the Kurdjumov-Sachs (K-S) orientation relationship from quasi in-situ electron backscatter diffraction (EBSD), the corresponding slip systems, Schmid factors (SF), and geometric compatibility parameter (m') around the crack were calculated during tensile testing of lath martensitic steel. The occurrence of slip transfer, which typically happens at low values of m' or SF, resulted in stress concentration on crystallographic orientations of 50.5 degrees, 60 degrees, and twin-related orientations. However, more effective slip transfer and plastic deformation were observed at 20 degrees due to larger m' and SF values.