Coupled Densification-Shape Distortion Analysis of Liquid Phase Sintering Affected By Gravity

被引：9

作者：

Alvarado-Contreras, Jose A. ^{[1
]}

German, Randall M. ^{[1
]}

Maximenko, Andrey L. ^{[2
]}

Olevsky, Eugene A. ^{[3
]}

机构：

[1] San Diego State Univ, Dept Mech Engn, San Diego, CA 92182 USA

[2] Moscow Engn Phys Univ, Moscow, Russia

[3] San Diego State Univ, Dept Mech Engn, San Diego, CA 92182 USA

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2014年 / 45A卷 / 02期

基金：

美国国家航空航天局;

关键词：

DIMENSIONAL CHANGE; NI-CU; MICROGRAVITY; EXTRICATION; COMPUTER; MODEL;

D O I：

10.1007/s11661-013-2050-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The paper presents a model of nonlinear viscous behavior in the examination of gravity-induced distortion during liquid phase sintering. The model uses a finite element formulation to describe densification, viscous flow, and the associated dimensional changes and component slumping during sintering. The approach assumes sintering is conducted under isothermal conditions with averaged material properties. The numerical results are compared with experimental data and with a mathematical model on the distortion during liquid phase sintering of tungsten heavy alloys. The preliminary conclusions aim to provide better understanding of dimensional control during liquid phase sintering. (C) The Minerals, Metals & Materials Society and ASM International 2013

引用

页码：927 / 933

页数：7

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