Difference between thermal-induced martensite and deformation-induced martensite in 304 austenitic stainless steel

IF 3.5 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Materials Science Pub Date : 2024-11-27 DOI:10.1007/s10853-024-10476-z

Xin Liu, Yanhui Guo, Yuexiang Wang, Linghuan Pang, Bin Fu

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Abstract

This study investigates the differences between deformation-induced martensite (DIM) and thermal-induced martensite (TIM) in 304 austenitic stainless steel, focusing on their formation, distribution, and behavior during annealing. DIM was generated through cold rolling (CR), while TIM was produced via cryogenic treatment (CT). Microstructural characterization revealed that both martensite’s are distributed in blocky forms, with DIM exhibiting a finer grain structure compared to TIM. During the annealing process, both types of martensite undergo reverse transformations back to austenite, but DIM begins to reverse earlier at a slower rate. Consequently, after annealing, DIM yields a higher amount of reversed austenite (RA) with smaller grain size, whereas TIM transforms into fewer but larger RA grains. This study provides critical insights into the distinct phase transformation mechanisms of DIM and TIM, offering a deeper understanding of their effects on the microstructure and mechanical properties of 304 austenitic stainless steel. This knowledge is valuable for optimizing processing techniques and enhancing material performance in industrial applications.

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来源期刊

Journal of Materials Science 工程技术-材料科学：综合

CiteScore

7.90

自引率

4.40%

发文量

1297

审稿时长

2.4 months

期刊介绍： The Journal of Materials Science publishes reviews, full-length papers, and short Communications recording original research results on, or techniques for studying the relationship between structure, properties, and uses of materials. The subjects are seen from international and interdisciplinary perspectives covering areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, nanostructured materials, nanocomposites, and biological and biomedical materials. The Journal of Materials Science is now firmly established as the leading source of primary communication for scientists investigating the structure and properties of all engineering materials.