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论文类型：期刊论文

发表时间：2008-10-20

发表刊物：JOURNAL OF ALLOYS AND COMPOUNDS

收录刊物：SCIE、EI、Scopus

卷号：466

期号：1-2

页面范围：368-372

ISSN号：0925-8388

关键字：Liquid-solid reactions; Metals and alloys; Microstructure

摘要：In this paper, a new welding method called the "plasma arc (continues) weld bonding" (PAWB) process was used to join magnesium alloy. The microstructure, elements distribution and failure load of the welding joint were observed and tested. The results showed that a welding joint without pores and inclusions could be obtained by the PAWB process. The fusion zone of the PAWB joint consisted of refined equiaxed grain, and the grain size was finer in upper fusion zone than that in bottom fusion zone. And the heat affect zone was not evident comparing with the plasma arc welding (PAW) joint. The PAWB joint showed the highest failure load among the PAW joint, adhesive bonding joint and itself. (C) 2007 Published by Elsevier B.V.