TB8超高强钛合金的热处理工艺

来源期刊:中国有色金属学报2010年第z1期(下册)

论文作者:张利军 田军强 白钰 常辉 薛祥义 张丰收

文章页码:670 - 673

关键词:TB8钛合金;热处理;显微组织;力学性能

Key words:TB8 titanium alloy; heat treatment; microstructure; mechanical property

摘    要:研究热处理制度对TB8超高强钛合金显微组织及力学性能的影响。结果表明:TB8钛合金在800~830 ℃固溶后,室温拉伸时合金具有较高的强度和优异的塑性;固溶并时效后合金具有很高的强度及较好的塑性;固溶温度的变化对合金强度及塑性影响很小,但时效温度的变化对合金强度及塑性影响很大,随着时效温度的升高,合金强度显着降低,塑性明显增强。

Abstract: Effects of heat treatment process on microstructures and mechanical properties of TB8 alloys were studied. The results show that the alloy has a higher tensile strength and excellent plastic at room temperature when alloy is soluted at 800-830 ℃, the alloy has high strength and good plasticity. The effect of change of solid solution temperature on strength and plasticity of alloy is minimal, but the effect of aging temperature change on strength and plasticity of alloy has great impact; with the increase of aging temperature, alloy strength significantly reduces, and alloy plasticity increases.

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