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Ti-6Al-4V鈦合金組織對其室溫吸氫行為影響的研究
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南京航空航天大學材料科學與技術(shù)學院,南京航空航天大學材料科學與技術(shù)學院

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TG113

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Effect of microstructure on room-temperature hydrogen absorption behavior of Ti-6Al-4V alloy
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College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics,College of Materials Science and Technology,Nanjing University of Aeronautics and Astronautics

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National Natural Science Foundation of China (50961008, 51061008); “973” Program (2011CB612203); Research Fund for the Doctoral Program of Higher Education of China (20116201120003); Natural Science Foundation of Gansu Province of China (1107RJYA275); Natural Science Foundation of Zhejiang Province of China (LQ13E010002)

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    摘要:

    本文采用電解充氫的方法研究了具有不同組織形貌的Ti-6Al-4V鈦合金的室溫吸氫能力的差異及其形成原因。研究表明,Ti-6Al-4V鈦合金組織形貌不同,其室溫吸氫能力也有明顯的不同。雙態(tài)組織的室溫吸氫能力最弱,而魏氏組織的室溫吸氫能力最強。β相的形貌、數(shù)量、連續(xù)性等組織特征對其吸氫能力影響很大,而α相的組織特征對其吸氫能力影響相對較小。雙態(tài)組織的Ti-6Al-4V鈦合金應該具有更好的抗氫脆效果。

    Abstract:

    In this paper, the effect of microstructure on the room-temperature hydrogen absorption behavior of Ti-6Al-4V alloy was studied through electrolytic hydrogen charging method. The results show that Ti-6Al-4V alloys with different microstructures show obviously different room-temperature hydrogen absorbing ability. The hydrogen absorbing ability of the alloy with duplex microstructure is the weakest and that of the alloy with widmanstatten microstructure is the strongest at room temperature. The influence of the microstructure characteristics of β phase is stronger than that of α phase on the capability for room-temperature hydrogen absorption. The Ti-6Al-4V titanium alloy with duplex microstructure should be the one with a perfect resistance to the hydrogen embrittlement.

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劉松,王寅崗. Ti-6Al-4V鈦合金組織對其室溫吸氫行為影響的研究[J].稀有金屬材料與工程,2017,46(8):2240~2243.[LIU Song, WANG Yingang. Effect of microstructure on room-temperature hydrogen absorption behavior of Ti-6Al-4V alloy[J]. Rare Metal Materials and Engineering,2017,46(8):2240~2243.]
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  • 收稿日期:2015-04-13
  • 最后修改日期:2016-04-12
  • 錄用日期:2016-05-18
  • 在線發(fā)布日期: 2017-11-16
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