摘要
The microstructures of hydrogenated Ti-6Al-4V alloy have been investigated using optical microscope (OM) and X-ray diffraction (XRD). Compared with the alloy containing lower hydrogen content, the contrasts of α phase and transformed β structure under optical microscope in the Ti-6Al-4V alloy containing higher hydrogen content are reversed. It was found that the face-centered cubic (FCC) δ hydride precipitated in the hydrogenated 0.579 wt.%H and 0.887 wt.%H alloys by XRD analysis. The quantity of β phase increased in the specimens with increasing hydrogen content after hydrogenation due to the αH → βH phase transformation. The diffraction peaks are moved to the lower angles with increasing hydrogen content because of solution of hydrogen atoms in α and β phases when the hydrogen content is lower than the saturation of hydrogen in α and β phases. The diffraction peaks of α and β phases are hardly changed when the hydrogen content of Ti-6Al-4V alloy is higher than the saturation of hydrogen in α and β phases. The diffraction peaks of α phase are broadened after hydrogenation because of microcosmic internal stress in α phase.
源语言 | 英语 |
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页 | 1490-1494 |
页数 | 5 |
出版状态 | 已出版 - 2008 |
活动 | 9th International Conference on Technology of Plasticity, ICTP 2008 - Gyeongju, 韩国 期限: 7 9月 2008 → 11 9月 2008 |
会议
会议 | 9th International Conference on Technology of Plasticity, ICTP 2008 |
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国家/地区 | 韩国 |
市 | Gyeongju |
时期 | 7/09/08 → 11/09/08 |