Achieving ultrafine dual-phase structure with superior mechanical property in friction stir processed plain low carbon steel

被引：57

作者：

Xue, P. ^{[1
]}

Xiao, B. L. ^{[1
]}

Wang, W. G. ^{[1
]}

Zhang, Q. ^{[1
]}

Wang, D. ^{[1
]}

Wang, Q. Z. ^{[1
]}

Ma, Z. Y. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2013年 / 575卷

基金：

中国国家自然科学基金;

关键词：

Friction stir processing; Steel; Dual phases; Ultrafine grained microstructure; GRAIN-SIZE; TENSILE PROPERTIES; HIGH-STRENGTH; STRAIN-RATE; MICROSTRUCTURE; DEFORMATION; FERRITE; TRANSFORMATION; DUCTILITY; ALUMINUM;

D O I：

10.1016/j.msea.2013.03.033

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ultrafine dual-phase structure was successfully prepared in a plain low carbon steel via friction stir processing (FSP) at a tool rotation rate of 400 rpm and a travel speed of 50 mm/min under rapid water cooling. Ultrafine polygonal ferrite grains (similar to 1 mu m) were distributed around the martensite phase consisting of nanostructured laths with a width of similar to 200 nm. FSP steel exhibited a good combination of ultrahigh yield strength of similar to 1100 MPa and large uniform elongation of similar to 7%. This work provides an effective strategy to prepare high strength low carbon steels. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：30 / 34

页数：5

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