退火工艺对Ti85合金组织和力学性能的影响
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摘要
通过热处理试验,研究了不同热处理制度对Ti85合金组织和性能的影响。结果表明:退火制度对Ti85合金的组织和性能有较大影响。随着退火温度的上升,显微组织中的α相含量减少,强度增加,在保证强度和塑性未有较大变化时,冲击韧性在995℃/180 min,AC(空冷)的条件下达到最大。本试验最佳热处理制度为995℃/180 min,AC。
The effects of different heat treatment on the microstructure and mechanical properties of Ti85 alloy were studied by heat treatment tests. The results show that, the annealing process has influence on the microstructure and mechanical properties of Ti85 alloy. The content of α-phase in the microstructure decreases and the strength increases with the annealing temperature increasing. When the strength and plasticity are not changed greatly, the impact toughness reaches the maximum under 995 ℃/180 min, AC(air-cooled) condition. The optimum heat treatment system is 995 ℃/180 min, AC.
The effects of different heat treatment on the microstructure and mechanical properties of Ti85 alloy were studied by heat treatment tests. The results show that, the annealing process has influence on the microstructure and mechanical properties of Ti85 alloy. The content of α-phase in the microstructure decreases and the strength increases with the annealing temperature increasing. When the strength and plasticity are not changed greatly, the impact toughness reaches the maximum under 995 ℃/180 min, AC(air-cooled) condition. The optimum heat treatment system is 995 ℃/180 min, AC.
引文
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