The influence of Al on the properties of cold rolled C-Mn-Si TRIP steels

被引：0

作者：

De Meyer, M ^{[1
]}

Vanderschueren, D ^{[1
]}

De Cooman, BC ^{[1
]}

机构：

[1] Univ Ghent, Lab Iron & Steelmaking, B-9052 Zwijnaarde, Ghent, Belgium

来源：

41ST MECHANICAL WORKING AND STEEL PROCESSING CONFERENCE PROCEEDINGS, VOL 37 | 1999年 / 37卷

关键词：

TRIP steels; Aluminium; Silicon; retained austenite; bainite; strain hardening;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The partial substitution of silicon by aluminium in TRIP steels results in very good mechanical properties with an improved formability compared to the conventional C-Mn-Si TRIP steel. The strain hardening behavior was studied in detail and revealed that all the specimens had a very high n value but the strain dependence was different. The strain hardening of C-Mn-Si TRIP steel reaches a maximum at low strain, while the Al alloyed TRIP steel showed a gradual increase of the n value, resulting in a larger uniform elongation. Investigation of the microstructure revealed that the Al alloyed steel contained both a larger volume fraction of retained austenite and a larger amount of bainite with a finer structure than the C-Mn-Si TRIP steel.

引用

页码：265 / 276

页数：12

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