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Study on Microstruture and Mechanical Properties of Welding Joints for 60 mm Thickness 16Mn Super Thick Plate
Author(s): 
Pages: 21-24,27
Year: Issue:  19
Journal: Hot Working Technology

Keyword:  特厚板焊接接头组织力学性能;
Abstract: 利用埋弧自动焊法对60mm厚16Mn特厚板进行焊接,采用ZEISS光学显微镜、LEICA显微硬度计及扫描电镜观察分析了焊接接头各区域及母材的组织、硬度,以及拉伸断口的形貌.结果表明:在本文的焊接实验条件下,焊接接头各区域的组织明显不同,上部区域粗大,下部区域细小;硬度值在过热区达到最高;焊接接头的拉伸断裂为韧性断裂,其抗拉强度均小于母材的抗拉强度.
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