On the variant pairing in transformation product of high strength low alloy steel depending on cooling rate

被引：8

作者：

Yu, Hao ^{[1
]}

Yu, Yishuang ^{[2
]}

Wang, Zhiquan ^{[3
]}

Li, Fan ^{[1
]}

Hu, Bin ^{[2
]}

Liu, Shilong ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China

[2] Shanghai Jiao Tong Univ, Inst Adv Steels & Mat, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China

[3] Ansteel Beijing Res Inst Co Ltd, Beijing 102211, Peoples R China

来源：

MATERIALS LETTERS | 2022年 / 326卷

基金：

中国国家自然科学基金;

关键词：

High strength low alloy steel; Cooling rate; Microstructure; Grain boundaries; Phase transformation; CRYSTALLOGRAPHY; DIFFRACTION; MORPHOLOGY; MARTENSITE; BAINITE; FERRITE;

D O I：

10.1016/j.matlet.2022.132953

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crystallographic features of transformation product were investigated in a high strength low alloy steel as a function of the cooling rate. The results showed that phase transformation occurring at the nose temperature of bainite transformation curve was most likely to obtain the highest density of high angle grain boundaries and fraction of V1/V2 variant pair. This was attributed to the ideal variant pairing in the transformation product triggered by the relatively large driving force and local carbon enrichment in the latter-transformed austenite. These findings would be instructive for the optimization of transformation product in low alloy steels via con-trolling the cooling rate.

引用

页数：4

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