Work-hardening characteristics of aluminium under hot-working conditions

被引：0

作者：

Puchi, ES ^{[1
]}

Staia, MH ^{[1
]}

机构：

[1] Cent Univ Venezuela, Sch Met Engn & Mat Sci, Caracas 1041, Venezuela

来源：

THERMEC '97 - INTERNATIONAL CONFERENCE ON THERMOMECHANICAL PROCESSING OF STEELS AND OTHER MATERIALS, VOLS I-II | 1997年

关键词：

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The stress-strain behaviour of aluminium 99.94% purity is described satisfactorily in a rational manner by combining the exponential-saturation equation earlier proposed by Voce with two different models advanced to correlate steady-state now stress data with temperature and strain rate: The Rocks model (model 1) and the Sellars-Tegart-Garofalo (STG) model (model 2). These models are extended to correlate also the finite yield stress at the onset of plastic deformation. The optimization of the flow stress parameters is carried out by means of the Newton-Gauss method which provides a satisfactory solution in few iterations.

引用

页码：1011 / 1017

页数：7

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