Strain-induced martensite formation and mechanical properties of a low-Ni N-containing Cr-Mn austenitic stainless steel

被引：0
作者：
Ansari, Farideh [1 ]
Mirzadeh, Hamed [1 ]
Dehghanian, Changiz [1 ]
机构：
[1] Univ Tehran, Coll Engn, Sch Met & Mat Engn, Tehran, Iran
来源：
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2025年 / 36卷
关键词：
Metastable austenitic stainless steels; Deformation-induced martensite; Phase transformation kinetics; Work-hardening behavior; Transformation-induced plasticity effect; STACKING-FAULT ENERGY; NANO/ULTRAFINE GRAIN-STRUCTURE; X-RAY EVALUATION; DISLOCATION DENSITY; CORROSION BEHAVIOR; RETAINED AUSTENITE; NITROGEN; TRANSFORMATION; DEFORMATION; MICROSTRUCTURE;
D O I：
10.1016/j.jmrt.2025.03.229
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Low-Ni N-containing Cr-Mn austenitic stainless steels are promising candidates for structural and biomedical applications. In the present work, for the first time, the strain-induced martensitic transformation and mechanical properties of the low-Ni N-containing Cr-Mn X5CrMnN17-8 alloy were investigated and compared with the AISI 304 and 20l stainless steel grades. It was revealed that the X5CrMnN17-8 alloy has a low stacking fault energy, utilizes the strengthening effect of nitrogen alloying, and exhibits a controlled and desirable kinetics of alpha '-martensite formation to maintain the transformation-induced plasticity (TRIP) effect up to higher strains. Accordingly, the X5CrMnN17-8 alloy exhibited superior strength-ductility synergy compared to the competing stainless steels with similar grain size.
引用
收藏
页码：1504 / 1510
页数：7
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