刘金涛,朱桂春,黄佳雯,陈令杰,韩刚,陈翔

• 1:洛阳船舶材料研究所(中国船舶集团有限公司第七二五研究所)
• 2:海洋腐蚀与防护全国重点实验室
• 3:江汉大学精细爆破国家重点实验室
• 4:湖北(武汉)爆炸与爆破技术研究院

摘要(Abstract)：

随着现代工业的快速发展，对高性能材料的需求日益增加，钛/双相不锈钢复合板凭借其卓越的耐腐蚀性能，展现了广泛的应用前景。本研究通过爆炸焊接制备了TP270C钛合金/SUS821L1高强度双相不锈钢的双金属复合板，并采用金相显微镜、扫描电子显微镜(SEM)、能量色散X射线光谱(EDS)和电子背散射衍射(EBSD)等技术，对复合板的界面微观特征进行了深入分析。此外，还结合力学性能测试对焊接质量进行了评估。研究结果表明：界面沉积能量较低时，焊接界面介于平直界面和波状界面之间；而当界面沉积能量较高时，焊接界面呈波状。两者界面附近均出现了元素扩散和晶粒细化现象。在焊接界面、熔化区域以及绝热剪切带内以完全再结晶为主；靠近焊接界面的位置，钛以部分再结晶为主，双相不锈钢以部分再结晶和变形晶为主。局部热积累促进了熔化层内晶粒的长大，然而，被熔化层“包裹”的钛颗粒出现了晶粒细化。在力学性能测试中，界面沉积能量较高的样品抗剪强度和抗弯强度相对于界面沉积能量较低的样品分别提升了40.33%和4.52%。

关键词(KeyWords)： 爆炸焊接;钛/钢复合板;界面形貌;力学性能;电子背散射衍射(EBSD)

Abstract:

Keywords:

基金项目(Foundation): 湖北省教育厅重点项目(D20234406);; 国家自然科学基金项目(No.12302436)~~

作者(Author): 刘金涛,朱桂春,黄佳雯,陈令杰,韩刚,陈翔

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