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利用光学显微镜、透射电镜和显微硬度计研究了V-5Cr-5Ti合金的再结晶行为和微观组织。结果表明,试验合金40%形变的开始再结晶温度为700℃,完全再结晶温度为1000℃;铸锭组织中均匀分布的富Ti相团簇,经轧制处理后变为不连续带状分布并在1000℃开始回溶;富Ti相的不均匀分布和高温分解导致合金在1000～1200℃退火时再结晶组织中晶粒尺寸随温度升高呈现单峰分布→双峰分布→单峰分布的演变过程并出现退火硬化现象。
The recrystallization behavior and microstructure of V-5Cr-5Ti alloy were studied by optical microscope, transmission electron microscope and microhardness tester. The results show that the initial recrystallization temperature is 700 ℃ and the complete recrystallization temperature is 1000 ℃ in the 40% deformation of the test alloy. The uniformly distributed Ti-rich clusters in the ingot structure become discontinuous bands after rolling And the solution begins to be dissolved at 1000 ℃. The non-uniform distribution of Ti-rich phase and the pyrolysis of the alloy lead to the unimodal distribution → bimodal distribution → unimodal distribution The evolution and the phenomenon of annealing hardening.