Ultrafine Grained Material Produced by Machining

被引：29

作者：

Deng, W. J. ^{[1
]}

Xia, W. ^{[1
]}

Li, C. ^{[1
]}

Tang, Y. ^{[1
]}

机构：

[1] S China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510641, Peoples R China

来源：

MATERIALS AND MANUFACTURING PROCESSES | 2010年 / 25卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Carbon steel; Chip; Cumulative effective strain; Deformation history; Equal channel angular pressing; Finite element method; Large plastic machining; Machining; Metal cutting; Microstructure; Nanostructured material; Severe plastic deformation; TEM; Temperature history; Ultrafine grained material; STRAINS;

D O I：

10.1080/10426910902748024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The evolution of microstructure of carbon steel subjected to large plastic strain machining was investigated. The microstructure generated in machined chips was ultrafine grains with an average size of 200nm. A finite element model was established to study large plastic deformation in plain orthogonal cutting. The results show most of the grain refinement associated with the formation of ultrafine grained chip can be attributed to the large shear strain imposed in the deformation zone. It is feasible to take machining as a method to preparing ultrafine grained materials and a type of experiment method to study severe plastic deformation.

引用

页码：355 / 359

页数：5

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