异种合金惯性摩擦焊的研究现状

文中针对钢与其他合金、铝合金与其他合金、钛合金与其他合金、高温合金与其他合金的惯性摩擦焊的研究现状进行了阐述。主要对惯性摩擦焊的工艺参数选取、端面设计、焊前预热、焊后热处理等研究内容进行了综述。并对异种合金惯性摩擦焊存在的问题进行了分析总结。结果表明,采用合理选择工艺参数、设计不同形状的端面、添加中间过渡层、焊前预热处理、焊后热处理等方法获得强度与母材相当、焊接质量较好的接头。建议在后续的研究中,结合数值模拟对异种合金惯性摩擦焊的工艺参数及端面设计进行优化,对接头的元素分布及新相形成的种类与数量进行调控,对焊接界面金属的流动行为进行深入研究,以获得具有综合性能较好的异种合金惯性摩擦焊接头。

Research status of inertial friction welding of dissimilar alloys

In this paper,the research status of inertial friction welding of steel and other alloys,aluminum alloy and other alloys,titanium alloy and other alloys,high temperature alloy and other alloys was described.The selection of process parameters,design of end plane,preheating before welding and post-welding heat treatment of inertial friction welding were summarized.The problems existing in inertial friction welding of dissimilar alloys were analyzed and summarized.The results showed that the joint with the same strength as the base metal and good welding quality could be obtained by adopting reasonable process parameters,designing difform end plane,adding intermediate transition layer,preheating treatment before welding and post-welding heat treatment.Suggestions in the follow-up study were that process parameters of the inertia friction welding of dissimilar alloy and design of end plane were optimized by combining with numerical simulation,element distribution and amount and type of newly formed phase of the joint were adjusted and controlled,and flow behavior of metal at welding interface was studied in depth to obtain a better comprehensive performance dissimilar alloy inertia friction welded joint.