低密度Ti2AlNb基合金热轧板微观组织的热稳定性

冯艾寒, 陈强, 王剑, 王皞, 曲寿江, 陈道伦

Thermal Stability of Microstructures in Low-Density Ti2AlNb-Based Alloy Hot Rolled Plate

FENG Aihan, CHEN Qiang, WANG Jian, WANG Hao, QU Shoujiang, CHEN Daolun

表2 Ti2AlNb基合金热轧板不同温度热处理前后的相组成

Table 2 Summaries of phase constituents of hot rolled Ti2AlNb-based alloy plate before and after heat treatment according to XRD, SEM, and TEM analyses

Heat treatment Phase constituent XRD SEM TEM As-rolled B2 + O + α2 B2 + O + α2 B2 + α2 600oC, 12 h, WQ B2 + O + α2 B2 + O + α2 B2 + O + α2 800oC, 12 h, WQ B2 + O + α2 B2 + O + α2 - 850oC, 12 h, WQ B2 + O + α2 B2 + O + α2 B2 + O + α2 900oC, 12 h, WQ B2 + O + α2 B2 + O + α2 B2 + O + α2 950oC, 12 h, WQ B2 + α2 B2 + α2 - 1000oC, 12 h, WQ B2 + α2 B2 + α2 B2 + α2 1050oC, 12 h, WQ B2 + α2 B2 + α2 - 1100oC, 12 h, WQ B2 + α2 B2 + α2 -