Use of Friction Stir Processing for Improving Heat-Affected Zone Liquation Cracking Resistance of a Cast Magnesium Alloy AZ91D

被引：0

作者：

G. M. Karthik

G. D. Janaki Ram

Ravi Sankar Kottada

机构：

[1] Indian Institute of Technology Madras,Department of Metallurgical and Materials Engineering, Materials Joining Laboratory

来源：

Metallurgical and Materials Transactions B | 2017年 / 48卷

关键词：

Friction Stir Processing (FSP); HAZ Liquation Cracking; Cast Magnesium Alloy AZ91D; Fusion Welding; Detailed Microstructural Studies;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this work, a cast magnesium alloy AZ91D was friction stir processed. Detailed microstructural studies and Gleeble hot ductility tests were conducted on the as-cast and the FSPed samples to comparatively assess their heat-affected zone liquation cracking behavior. The results show that the use of FSP as a pretreatment to fusion welding can strikingly improve the heat-affected zone liquation cracking resistance of alloy AZ91D by reducing the amount and size of the low-melting eutectic β (Mg17Al12) as well as by refining the matrix grain size.

引用

页码：3270 / 3280

页数：10