Nanostructured tool steel fabricated by combination of laser melting and friction stir processing

被引：43
作者：
Morisada, Y. [1 ]
Fujii, H. [2 ]
Mizuno, T. [3 ]
Abe, G. [3 ]
Nagaoka, T. [1 ]
Fukusumi, M. [1 ]
机构：
[1] Osaka Municipal Tech Res Inst, Joto Ku, Osaka 5368553, Japan
[2] Osaka Univ Ibaraki, Joining & Welding Res Inst, Osaka 5670047, Japan
[3] AMC Corp, Konohana Ku, Osaka 5540024, Japan
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 505卷 / 1-2期
关键词：
Friction stir processing; Laser melting; Tool steel; Microstructural refinement; Pinning effect; Hardness; ALUMINUM-ALLOYS; MATERIAL FLOW; MG ALLOY; MICROSTRUCTURE; DEFORMATION; PARTICLES; STRENGTH;
D O I：
10.1016/j.msea.2008.11.006
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The microstructural control of tool steel (SKD11) by laser melting and friction stir processing (FSP) was studied. A nanometer-sized microstructure consisting of fine M(7)C(3) carbide (particle size: similar to 100 nm) and a matrix (grain size: similar to 200 nm) was successfully fabricated by the FSP on the laser treated SKD11 The. nanostructured SKD11 had an extremely high hardness of about 900 HV even with its relatively high amount of retained austenite. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：157 / 162
页数：6
相关论文
共 15 条
[1]   Estimation of material flow in stir zone during friction stir welding by distribution measurement of Si particles [J].
Fujii, H ;
Kim, YG ;
Tsumura, T ;
Komazaki, T ;
Nakata, K .
MATERIALS TRANSACTIONS, 2006, 47 (01) :224-232
[2]   Microhardness measurements and the Hall-Petch relationship in an Al-Mg alloy with submicrometer grain size [J].
Furukawa, M ;
Horita, Z ;
Nemoto, M ;
Valiev, RZ ;
Langdon, TG .
ACTA MATERIALIA, 1996, 44 (11) :4619-4629
[3]   Structure and strength after large strain deformation [J].
Hansen, N ;
Huang, X ;
Ueji, R ;
Tsuji, N .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 387 :191-194
[4]   Submerged friction stir processing (SFSP): An improved method for creating ultra-fine-grained bulk materials [J].
Hofmann, DC ;
Vecchio, KS .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 402 (1-2) :234-241
[5]   Continuous dynamic recrystallization during friction stir welding of high strength aluminum alloys [J].
Jata, KV ;
Semiatin, SL .
SCRIPTA MATERIALIA, 2000, 43 (08) :743-749
[6]   Microstructure and mechanical properties of friction stir welded joints of AC4A cast aluminium alloy [J].
Liu, HJ ;
Fujii, H ;
Nogi, K .
MATERIALS SCIENCE AND TECHNOLOGY, 2004, 20 (03) :399-402
[7]   Fullerene/A5083 composites fabricated by material flow during friction stir processing [J].
Morisada, Y. ;
Fujii, H. ;
Nagaoka, T. ;
Nogi, K. ;
Fukusumi, M. .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2007, 38 (10) :2097-2101
[8]   Nanocrystallized magnesium alloy -: uniform dispersion of C60 molecules [J].
Morisada, Y. ;
Fujii, H. ;
Nagaoka, T. ;
Fukusumi, M. .
SCRIPTA MATERIALIA, 2006, 55 (11) :1067-1070
[9]   MWCNTs/AZ31 surface composites fabricated by friction stir processing [J].
Morisada, Y ;
Fujii, H ;
Nagaoka, T ;
Fukusumi, M .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 419 (1-2) :344-348
[10]   Effect of friction stir processing with SiC particles on microstructure and hardness of AZ31 [J].
Morisada, Y. ;
Fujii, H. ;
Nagaoka, T. ;
Fukusumi, M. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 433 (1-2) :50-54
12