钢铁钒钛2025，Vol.46Issue(6)：84-89,6.DOI:10.7513/j.issn.1004-7638.2025.06.010
Ti-2Al-2.5Zr钛合金氢化物析出取向研究
Study on the hydride precipitation orientation in Ti-2Al-2.5Zr titanium alloy
摘要
Abstract
In this paper,the effects of hydrogen content on the microstructure and hydride precipitation orientation in Ti-2Al-2.5Zr titanium alloy were investigated.The results showed that after high-temper-ature gas-phase hydrogen charging(mass fraction:0.01％、0.05％),δ-phase hydrides were formed with-in the alloy matrix.With the increase of hydrogen content,the size and density of hydrides gradually in-creased.The hydrides exhibited an orientation relationship of {0001 }α//{1(1)1}δ,<1(2)10>α//<110>δ.Lattice expansion caused by hydride precipitation generated numerous dislocations in both the surrounding α-Ti matrix and the hydrides themselves and the stress at the hydride tips could transmit across grain bound-aries and induce hydride formation in adjacent grains.关键词
Ti-2Al-2.5Zr钛合金/气相渗氢/δ-氢化物/微观组织Key words
Ti-2Al-2.5Zr titanium alloy/gas-phase hydrogen charging/δ phase hydrides/microstruc-ture分类
矿业与冶金引用本文复制引用
郭楠,张家豪,徐祺,张恒泉,王泽明,陈家豪,姚力夫..Ti-2Al-2.5Zr钛合金氢化物析出取向研究[J].钢铁钒钛,2025,46(6):84-89,6.基金项目
国家重点研发计划项目(2023YFB3710705). （2023YFB3710705）
