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Abstract：
The circular-patch welding test was used to study the liquation and liquation cracking of AZ-series Mg alloys. A heat treatment was carried out on the as-received AZ91 alloy to dissolve the gamma(Mg17Al12) particles before welding. The circular-patch welding test was then conducted on the heat-treated, as-received AZ91 alloy using AZ61 and AZ91 filler wires. The results showed that the susceptibility of AZ91 alloy to liquation and liquation cracking was significantly reduced by the dissolution of massive gamma(Mg17Al12) particles via a heat treatment before welding as the liquation mechanism was changed. Both constitutional liquation and incipient melting occurred in the partially melted zone of the as-received AZ91 welds, while only incipient melting occurred in the heat-treated AZ91 welds.
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SCIENCE AND TECHNOLOGY OF WELDING AND JOINING
ISSN： 1362-1718
Year： 2020
Issue： 6
Volume： 25
Page： 496-502
3 . 3 0 0
JCR@2022
ESI Discipline： MATERIALS SCIENCE;
ESI HC Threshold：169
Cited Count：
WoS CC Cited Count： 8
SCOPUS Cited Count： 6
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 0
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