700℃热暴露对 β 凝固 γ-TiAl合金表面组织及形貌的影响

刘仁慈, 王鹏, 曹如心, 倪明杰, 刘冬, 崔玉友, 杨锐

Influence of Thermal Exposure at 700oC on the Microstructure and Morphology in the Surface of β-Solidifying γ-TiAl Alloys

LIU Renci, WANG Peng, CAO Ruxin, NI Mingjie, LIU Dong, CUI Yuyou, YANG Rui

表1 Ti-43.5Al-4Nb-1Mo-0.5B (TNM-0.5B)合金铸件成分检测结果

Table 1 Chemical composition analysis results of Ti-43.5Al-4Nb-1Mo-0.5B (TNM-0.5B) alloy casting

Element Mass fraction / % Atomic fraction / % Ti 59.06 50.61 Al 28.6 43.5 Nb 9.75 4.31 Mo 2.45 1.05 B 0.14 0.53 O 0.065 0.17 N 0.02 0.06