| 真空感应凝壳熔炼TC4合金的显微组织和力学性能 |
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| 引用本文： | 丁宏升,郭景杰,贾均,苏彦庆. 真空感应凝壳熔炼TC4合金的显微组织和力学性能[J]. 材料科学与工艺, 1999, 0(Z1) |
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| 作者姓名： | 丁宏升 郭景杰 贾均 苏彦庆 |
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| 作者单位： | 哈尔滨工业大学金属精密热加工国防科技重点实验室!黑龙江哈尔滨150001(丁宏升，郭景杰，贾均)，哈尔滨工业大学金属精密热加工国防科技重点实验室!黑龙江哈尔(苏彦庆) |
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| 摘 要： | 针对在航空航天等领域有重要应用背景的TC4合金 ,运用水冷铜坩埚真空感应熔炼炉制备了合金铸锭 ,研究了合金在铸态、热处理和热等静压条件下的显微组织和力学性能 .结果表明 ,铸态TC4合金的晶粒粗大 ,基体为大片状α+ β相组织 ,合金的强度较高 ,塑性低 ;合金经热处理 ,尤其经热等静压处理后 ,组织明显细化 ,塑性提高 .
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| 关 键 词： | Ti6Al4V 感应凝壳熔炼 钛合金 组织 性能 |
Microstructure and properties of Ti-6Al-4V alloy with cold-wall induction melting preparation |
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| DING Hong sheng,GUO Jing jie,JIA Jun,SU Yan qing. Microstructure and properties of Ti-6Al-4V alloy with cold-wall induction melting preparation[J]. Materials Science and Technology, 1999, 0(Z1) |
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| Authors: | DING Hong sheng GUO Jing jie JIA Jun SU Yan qing |
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| Abstract: | Ti-6Al-4V alloy has many excellent properties which make it used for aerospace, aviation, shipping, petroleum chemical engineering, biological and medical treatment and so on. Compared to consumable arc melting, water cooling crucible vacuum induction melting can get to continuous control for temperature and composition of molten alloy, which must have important effects for quality and properties of ingot. So in this paper, the Ti-6Al-4V alloy is prepared with the above method, then the as cast structure and properties of alloy, and the effects of heat treatment and HIP were studied. The results show that cooling rate of ingot is important factor to as cast structure, so it is important to control superheating to improve as-cast structure. After heat treatment, alpha phase become fine, strength decrease, plastics increase. HIP can close structural defaults, and make mechanical properties improving, especially plastics improve distinctly. |
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| Keywords: | Ti-6Al-4V cold wall crucible induction melting titanium alloy microstructure properties |
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