Ti-Cr-V-Al合金的显微组织与热处理制度的关系

• 作 者: 刘玉芹 白克武 张翥 沈剑韵
• 机 构: 北京有色金属研究总院
• 出 处: 稀有金属
• 发表日期: 1999年04期
• 关键词: 阻燃钛合金 显微组织 热处理 热力学

利用ＸＲＤ、ＴＥＭ、ＥＤＳ和光学显微镜等方法研究了ＴｉＣｒＶＡｌ合金的显微组织与热处理制度的关系，并从热力学的角度揭示了α相的析出行为。研究结果表明ＴｉＣｒＶＡｌ合金中有α相、碳化物相和硅化物相析出，在试验条件下α相的析出量与热力学平衡计算结果有较大差别的原因是从β基体中析出α相的驱动力很小

The relationship between microstructure and heat treatment of TiCrVAl alloy was studied by XRD, TEM, EDS and optical microscope. The precipitation behavior of α phase was revealed from the thermodynamic point of view. The results show that the α-phase, carbide and silicide phases are precipitated in the TiCrVAl alloy. The reason for the large difference between the α-phase precipitates and the thermodynamic equilibrium results under the experimental conditions is that from the β matrix The driving force precipitated α phase is small