高频感应辅助自蔓延合成TiAl涂层的工艺参数优化  

Process Parameters Optimization of High-frequency Induction-assisted Self-propagating Synthesis of TiAl Coating

作　　者：潘成刚[1] 龚明川 曾汉荣 赵新[1] 房成洁 PAN Chenggang;GONG Mingchuan;ZENG Hanrong;ZHAO Xin;FANG Chengjie(State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China;Hu'nan Valin Xiangtan Iron and Steel Co.,Ltd.,Xiangtan 411101,China)

机构地区：[1]武汉科技大学省部共建耐火材料与冶金国家重点试验室,湖北武汉430081 [2]湖南华菱湘潭钢铁有限公司,湖南湘潭411101

出　　处：《热加工工艺》2023年第20期95-100,共6页Hot Working Technology

基　　金：国家自然科学基金项目(57135353)。

摘　　要：基于Deform建立了高频感应辅助自蔓延合成TiAl系涂层的二维模型,分析了反应前加热过程中基体和压坯的温度分布规律。设计了反应时刻压坯温差最小为实验目标的三因素三水平的工艺参数正交实验。结果表明:影响压坯温差的工艺参数的主次顺序依次为:感应电流、压坯致密度、压头材料。最优工艺参数组合为:感应电流300 A、压坯致密度88.5%、石墨压头。A 2D finite element model of high-frequency induction-assisted self-propagating synthesis of TiAl coating was established using Deform.The temperature distribution of the substrate and the compact during the heating process before the reaction was analyzed.Orthogonal experiment with three factors and three levels of process parameters was designed with the minimum temperature difference of the compact at the reaction time as the test target.The results show that the order of the factors affecting the temperature difference is induction current,compact density,and indenter material.The optimal combination of process parameters is:induction current 300 A,compact density 88.5%and graphite indenter.

关 键 词：高频感应辅助自蔓延合成 DEFORM 正交实验 温差 Ti-Al涂层 

分 类 号：TG174.4[金属学及工艺—金属表面处理]