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所属单位：材料科学与技术学院
发表刊物：JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
关键字：Invar alloy Weave bead welding Microstructure characteristic Thick plate
摘要：Weave bead welding was employed to join Invar alloy plates. Excellent fusion formations were produced at the side walls of the groove and the inter-layers without any clearly observed defects, such as holes, inclusions or macro-cracks. Mn and Si are segregated in the base metal, while homogeneously distributed in the weld. The Ni content decreased while the Fe content increased in weld seam. All tensile specimens suffered a ductile fracture and the strength of the weld bead was as superior as base metal. The fracture surface was composed by equiaxed dimples. The micro-hardness of weld and metal in heat-affected zone was lower than that of base metal.(C) 2017 Elsevier B.V. All rights reserved.
ISSN号：0924-0136
是否译文：否
发表时间：2017-06-01
合写作者：Liu, Xiangbo,魏艳红,Chen, Jicheng,Chen, Jie,Liu, Hongbing
通讯作者：占小红