Nanocrystallization of drill hole surface by high speed drilling

被引：9
|
作者：
Todaka, Y [1 ]
Umemoto, M [1 ]
Li, JG [1 ]
Tsuchiya, K [1 ]
机构：
[1] Toyohashi Univ Technol, Dept Prod Syst Engn, Toyohashi, Aichi 4418580, Japan
来源：
METASTABLE, MECHANICALLY ALLOYED AND NANOCRYSTALLINE MATERIALS | 2005年 / 24-25卷
关键词：
severe plastic deformation (SPD); nanostructure; drilling; martensite steel; white-etching layer (WEL); AIR BLAST; STEELS; LAYER; DEFORMATION;
D O I：
10.4028/www.scientific.net/JMNM.24-25.601
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Microstructure produced by drilling in as-quenched Fe-0.56%C steel was investigated. The produced microstructure consists of 4 layers in the depth; those are (from top surface) nanocrystalline (NC) layer, equiaxed submicron-crystalline (SMC) layer consisting of ferrite (cc) and martensite (alpha') phases, recrystallized SMC alpha layer with a large number of cementite particles and over-tempered martensite structure layer. The NC layer has extremely high hardness and high thermal stability.
引用
收藏
页码：601 / 604
页数：4
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