Grain boundary melting or liquid film migration in brazing sheet

被引：12

作者：

Wittebrood, A

Kooij, CJ

Vieregge, K

机构：

[1] Hoogovens Res & Dev, NL-1970 CA Ijmuiden, Netherlands

[2] Hoogovens Aluminium Rolled Prod GMBH, DE-56070 Koblenz, Germany

来源：

ALUMINIUM ALLOYS: THEIR PHYSICAL AND MECHANICAL PROPERTIES, PTS 1-3 | 2000年 / 331-3卷

关键词：

aluminium brazing sheet; Differential Scanning Calorimetry; grain boundary melting; liquid film migration;

D O I：

10.4028/www.scientific.net/MSF.331-337.1743

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A study has been carried out to increase understanding about the nature of core penetration, grain boundary melting or liquid film migration. In the literature all three phrases are used for probably the same metallurgical observation. This phenomenon is frequently observed in O-temper brazing, sheet. In this study Differential Scanning Calorimetry (DSC) measurements were correlated with the fillet sizes formed in a reverse T-sample, together with the occurrence of grain boundary penetration in the same sample. The conclusion is that DSC measurements provide reliable data to study grain boundary penetration. The DSC method is discriminating enough to measure small differences in grain sizes. DSC proves to be a simple but powerful tool to study changes in the core induced by the interaction of the clad alloy with the core alloy.

引用

页码：1743 / 1749

页数：7