Fabrication of nanostructured tool steel layer by combination of laser cladding and friction stir processing

被引：19
|
作者：
Morisada, Yoshiaki [1 ]
Fujii, Hidetoshi [2 ]
Mizuno, Tadashi
Abe, Genryu
Nagaoka, Toru [1 ]
Fukusumi, Masao [1 ]
机构：
[1] Osaka Municipal Tech Res Inst, Osaka 5368553, Japan
[2] Osaka Univ, Joining & Welding Res Inst, Suita, Osaka 565, Japan
来源：
SURFACE & COATINGS TECHNOLOGY | 2011年 / 205卷 / 11期
关键词：
Friction stir processing; Laser cladding; Microstructural refinement; Carbide particle; Tool steel; MICROSTRUCTURES; WEAR;
D O I：
10.1016/j.surfcoat.2010.11.062
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A general fabrication process of the nanostructured tool steel layer with various carbide particles was developed by a combination of laser cladding and friction stir processing (FSP). The dendritic carbides formed by the laser cladding were crushed to carbide nanoparticles during the FSP, and were uniformly dispersed in the iron matrix. The shape and size of the carbide particles could be controlled by the conditions of the laser cladding and the FSP. The nanostructured tool steel layer formed by the laser and the FSP under the optimized conditions had a microhardness of similar to 900 HV which was higher than that of conventional tool steels. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：3397 / 3403
页数：7
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