Paper Title:
Large Plastic Deformation and Ultra-Fine Grained Structures Generated by Machining
  Abstract

Microstructure of machined copper chips at very low velocity was characterized by transmission electron microscopy. The structure of the machined chip produced by reasonable combinations of machining parameters is virtually entirely occupied by isolated equiaxed submicron grains of 100~300nm in size with high-angle boundaries. A finite element model was developed to study large plastic deformation in plain orthogonal machining copper. The numerical results show most of the grain refinement associated with the formation of ultra-fine grained chip may be attributed to the large shear strain imposed in the deformation zone. It is feasible to take machining process as a method of preparing ultra-fine grained materials. But the optimal design of the machining process requires a precise and quantitative understanding of the mechanics of deformation-induced subgrain microstructure.

  Info
Periodical
Key Engineering Materials (Volumes 375-376)
Edited by
Yingxue Yao, Xipeng Xu and Dunwen Zuo
Pages
21-25
DOI
10.4028/www.scientific.net/KEM.375-376.21
Citation
W. J. Deng, W. Xia, Y. Li, Z. P. Wan, Y. Tang, "Large Plastic Deformation and Ultra-Fine Grained Structures Generated by Machining", Key Engineering Materials, Vols. 375-376, pp. 21-25, 2008
Online since
March 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Rimma Lapovok
Abstract:Equal Channel Angular Extrusion (ECAE) has become a very popular tool for studying the evolution of microstructure and properties under...
37
Authors: Pablo Rodriguez-Calvillo, Yvan Houbaert
Abstract:High silicon steel is used for electrical applications because its electrical resistivity is increased and the magnetostriction is reduced....
15
Authors: Gui Qing Chen, Gao Sheng Fu, Wen Duan Yan, Chao Zeng Cheng, Ze Chang Zou
Modeling, Analysis and Simulation of Manufacturing Processes
Abstract:The 3003 Al alloy was deformed by isothermal compression in the range of deformation temperature 300-500 °C at strain rate 0.0l-10.0...
306
Authors: Xiao Yu Zhong, Guang Jie Huang, Fang Fang He, Qing Liu
Abstract:Uni-axial tensile plastic deformation behavior of rolled magnesium alloy AZ31B under the temperature range from room temperature(RT) to 250°C...
219
Authors: Liang Chu, Li Jun Shi, Yan Bi, Da Sen Bi
Abstract:In this paper, the nosing process of metal tube with a conical die is investigated using the finite element method, and a series of...
1444