Ti-29Nb-13Ta-4.6Zr高速压制行为及其烧结性能的研究

doi:10.13228/j.boyuan.issn1006-6543.20160080

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Abstract The Ti-29Nb-13Ta-4.6Zr powder was compacted with a self-developed high velocity compaction machine. The effect of impact energy on density as well as mechanical properties was investigated. The results reveal that the green density increases with increasing impact energy， the green density reaches a maximum of 5.63 g/cm3 （relative density of 94.1%） with impact energy of 1 805 J. The radial spring back of the samples increase with increasing impact energy. After sintered in vacuum at 1 250 ℃， the sintered density increases with the increase of impact energy while the volume of the sintered compacts expand and the sintered compacts obtain the maximum density of 5.53 g/cm3 （relative density of 92.5%）. After sintered for 2.0 h in vacuum， the sintered compacts obtain the highest tensile strength of 629.8 MPa and the highest hardness of 324.5 HV.

Key words： Ti-29Nb-13Ta-4.6Zr high velocity compaction impact energy density mechanical properties, Ti-29Nb-13Ta-4.6Zr high velocity compaction impact energy density mechanical properties

Received: 20 June 2016 Published: 14 November 2017

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HE Jie. High velocity compaction behavior and sintered properties of Ti-29Nb-13Ta-4.6Zr alloy[J]. , 2017, 27(05): 12-17.

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http://edit.chinamet.cn/Jweb_fmyjgy/EN/10.13228/j.boyuan.issn1006-6543.20160080 OR http://edit.chinamet.cn/Jweb_fmyjgy/EN/Y2017/V27/I05/12

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