Numerical simulation and experimental analysis of vacuum brazing for steel/cermet

被引：32

作者：

Barrena, M. I. ^{[1
]}

Gomez de Salazar, J. M. ^{[1
]}

Gomez-Vacas, M. ^{[1
]}

机构：

[1] Univ Complutense Madrid, Fac Chem, Dept Mat Sci, E-28040 Madrid, Spain

来源：

CERAMICS INTERNATIONAL | 2014年 / 40卷 / 07期

关键词：

Joining; Diffusion; Mechanical properties; Cemented carbide; Microstructure; BRAZED RESIDUAL-STRESS; WELDING PROCESS;

D O I：

10.1016/j.ceramint.2014.03.033

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The finite element method and processing experiments were used to investigate the influence of the brazing process on residual stresses and the microstructural and mechanical property changes of dissimilar joints. In the present investigation, tool steel (90MnCrV8) and cemented carbide (WC-10Co) were brazed in a vacuum using ductile filler. The calculated results show that the residual stresses developed during the cooling process are very high so that the strength of the ceramic/metal brazed joints is decreased. The maximum peak stress is located in the filler-cermet interface. The finite element method is an effective method to predict the stress distribution of dissimilar joints. The expected improvement on the shear stress of the joints by optimizing the brazing time was confirmed by the experimental results. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：10557 / 10563

页数：7

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