不同锻造工艺对TC4钛合金棒材显微组织与力学性能的影响 |
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引用本文: | 汪波,曾卫东,彭雯雯.不同锻造工艺对TC4钛合金棒材显微组织与力学性能的影响[J].钛工业进展,2014,31(5):14-18. |
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作者姓名: | 汪波 曾卫东 彭雯雯 |
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作者单位: | 1. 空军驻430厂军代表室,陕西西安,710021 2. 西北工业大学凝固技术国家重点实验室,陕西西安,710072 |
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摘 要: | 研究了α+β两相区锻造、近β锻造和β锻造3种不同锻造工艺对TC4钛合金棒材显微组织和力学性能的影响。结果表明,TC4钛合金经α+β锻造、近β锻造和β锻造3种工艺锻造后,分别获得等轴组织、混合组织以及片层组织;3种组织的强度相当,等轴组织和混合组织的塑性较好,混合组织和片层组织的冲击韧性较好。采用近β锻造方式,可使TC4钛合金棒材获得最佳的综合性能。
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关 键 词: | TC4钛合金 锻造工艺 显微组织 力学性能 |
Effect of Different Forging Processes on Microstructure and Mechanical Properties of TC4 Titanium Alloy Bars |
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Authors: | Wang Bo Zeng Weidong Peng Wenwen |
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Affiliation: | Wang Bo;Zeng Weidong;Peng Wenwen;Air Force Munitioning Representative Office at Factory 430;State Key Laboratory of Solidification Processing,Northwestern Polytechnical University; |
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Abstract: | The effect of different forging including α +β forging,nearβ forging andβ forging processes on microstructure and mechanical properties of TC4 titanium alloy bars was investigated.The results show that the alloy exhibited equiaxed microstructure,dual microstructures and lamellar microstructure after α +β,nearβ andβ forging respectively.The alloys with these microstructures had similar strength.However,the alloy with equiaxed structute and dual microstructures exhibited a good tensile plasticity.Meanwhile,the alloy with dual microstructures and lamellar microstructure had excellent impact toughness.Therefore,the alloy could acquire a good comprehensive performance through deforming in nearβ forging. |
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Keywords: | TC4 titanium alloy forging processes microstructure mechanical properties |
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