摘要:采用真空扩散连接技术制备TC4钛合金/2205双相不锈钢(DSS)复合材料,利用OM、SEM、EDS和XRD对结合区的显微组织和物相进行分析,并测试剪切强度和显微硬度。结果表明:1 150℃保温60 min的TC4/2205复合材料界面结合良好,焊接缺陷较少,结合区由4个新相层组成,厚度约为350μm;A层为富Fe、Cr的β-Ti固溶体,B层为β-Ti、FeTi和少量NiTi,C层出现Fe2Ti和Cr2Ti相,D层为γ-Fe(Ti);新相层的显微硬度显著高于基体,C层硬度出现峰值,为(775±20)HV。
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