An age hardening model for Al-7Si-Mg casting alloys

被引：95

作者：

Rometsch, PA ^{[1
]}

Schaffer, GB ^{[1
]}

机构：

[1] Univ Queensland, Dept Min Minerals & Mat Engn, Cooperat Res Ctr Cast Met Mfg, CAST, Brisbane, Qld 4072, Australia

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2002年 / 325卷 / 1-2期

关键词：

aluminium; ageing; modelling; hardness; yield strength; strain hardening;

D O I：

10.1016/S0921-5093(01)01479-4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Yield strength (YS) ageing curves have been modelled for A356 and A357 aluminium casting alloys below the solvus temperature of the main hardening precipitate. Predictions are based on the Shercliff and Ashby methodology (Acta MetaH. Mater. 38 (1990) 1789) for wrought alloys. Differences between strengthening in wrought and cast Al-Si-Mg alloys are considered. A Brinell hardness to YS conversion incorporating strain hardening has been established to enable YS ageing curves to be predicted with reduced experimental effort. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：424 / 434

页数：11

共 29 条

[1] QUANTIFICATION OF THE MG2SI-BETA'' AND BETA' PHASES IN ALMGSI ALLOYS BY TRANSMISSION ELECTRON-MICROSCOPY [J].