Characteristics of hydriding and hydrogen embrittlement of the Ti-Al-Zr alloy

被引：13
|
作者：
Kim, TK [1 ]
Baek, JH [1 ]
Choi, BS [1 ]
Jeong, YH [1 ]
Lee, DJ [1 ]
Chang, MH [1 ]
机构：
[1] Korea Atom Energy Res Inst, Taejon 305600, South Korea
来源：
ANNALS OF NUCLEAR ENERGY | 2002年 / 29卷 / 17期
关键词：
D O I：
10.1016/S0306-4549(02)00027-0
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The characteristics of hydriding and hydrogen embrittlement of the Ti-Al-Zr alloy were evaluated. The amount of hydrogen absorbed into the alloy at 500 degreesC was continuously monitored using a hydrogen pressure measurement. The rate of decrease in hydrogen pressure indicated a high absorption rate of hydrogen into the alloy, following a linear rate law. X-ray diffraction studies showed the formation of delta-phase titanium hydride (TiH1.97) after hydriding. At room temperature, the alloy showed much sensitivity to embrittlement in ductility by hydrogen. The delta-hydrides in the grain boundaries promoted the crack propagation in the presence of stress, leading to the cleavage failure mode. However, the tensile strengths were almost independent of the hydrogen content up to 1174 ppm. It is thus concluded that the delta-hydride acts to decrease the ductility without affecting tensile strengths. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：2041 / 2053
页数：13
相关论文
共 50 条
  • [1] Hydrogen embrittlement of a Ti-Al-Zr alloy evaluated by impact test method
    Liu, YZ
    Zu, XT
    Li, C
    Qiu, SY
    Li, WJ
    Huang, XQ
    SCRIPTA MATERIALIA, 2005, 52 (09) : 821 - 825
  • [2] Study of hydrogen induced embrittlement of Ti-Al-Zr Alloys
    Liu, Yan-Zhang
    Huang, Xin-Quan
    Qiu, Shao-Yu
    Zu, Xiao-Tao
    Kang, Peng
    2005, Yuan Zi Neng Chuban She (26):
  • [3] Effects of hydrogen on the mechanical properties of Ti-Al-Zr alloy
    Liu, YZ
    Qiu, SY
    Kang, P
    Huang, XQ
    Zu, XT
    JOURNAL OF ALLOYS AND COMPOUNDS, 2004, 384 (1-2) : 145 - 151
  • [4] Effects of hydrogen on the mechanical properties of Ti-Al-Zr alloy
    Liu, Yanzhang
    Qiu, Shaoyu
    Kang, Peng
    Huang, Xinquan
    Zu, Xiaotao
    Journal of Alloys and Compounds, 2004, 384 (1-2): : 145 - 151
  • [5] EFFECT OF HYDROGEN ON CYCLIC STRENGTH OF TI-AL-ZR ALLOY
    GORITSKII, VM
    GERASIMOVA, LG
    TERENTEV, VF
    FLORINSKII, YB
    METAL SCIENCE AND HEAT TREATMENT, 1975, 17 (7-8) : 698 - 700
  • [6] Surface characteristics and corrosion behavior of Ti-Al-Zr alloy implanted with Al and Nb
    Liu, Y. Z.
    Zu, X. T.
    Li, C.
    Qiu, S. Y.
    Huang, X. Q.
    Wang, L. M.
    CORROSION SCIENCE, 2007, 49 (03) : 1069 - 1080
  • [7] Studies on Hydrogen Embrittlement of Ti-2Al-2.5Zr Alloy
    Wang, Li
    Luo, Qiang
    Liu, Yanzhang
    Chen, Yong
    Sun, Danqi
    LIGHT METALS TECHNOLOGY 2009, 2009, 618-619 : 101 - 104
  • [8] Microstructure evolutions during cooling in a Ti-Al-Zr alloy
    Nakai, K
    Minaga, T
    Kobayashi, S
    Ohmori, Y
    PRICM 4: FORTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, VOLS I AND II, 2001, : 2543 - 2546
  • [9] Surface modification of a Ti-Al-Zr alloy by niobium ion implantation
    Zu, X. T.
    Liu, Y. Z.
    Lian, J.
    Liu, H.
    Wang, Y.
    Wang, Y. H.
    Wang, L. M.
    Ewing, R. C.
    SURFACE & COATINGS TECHNOLOGY, 2006, 201 (06): : 3756 - 3760
  • [10] Study on high temperature fretting wear of Ti-Al-Zr alloy
    Xu, Xiao-Jun
    Liu, Han-Wei
    Zhu, Min-Hao
    Qiu, Shao-Yu
    Zhou, Zhong-Rong
    Hedongli Gongcheng/Nuclear Power Engineering, 2010, 31 (05): : 42 - 47
12345