| 液态置氢对TC21合金组织及硬度的影响 |
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| 引用本文： | 王 亮,苏彦庆,王书杰,骆良顺,郭景杰,傅恒志.液态置氢对TC21合金组织及硬度的影响[J].稀有金属材料与工程,2011,40(2):321-324. |
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| 作者姓名： | 王 亮 苏彦庆 王书杰 骆良顺 郭景杰 傅恒志 |
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| 作者单位： | 哈尔滨工业大学,黑龙江哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金(50271020，50771041)；新世纪优秀人才支持计划(NCET-05-0350)；哈尔滨工业大学优秀团队支持计划 |
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| 摘 要： | 在热氢处理(THP)的基础上提出了液态置氢的方法,即合金在含氢气的气氛下进行熔炼,部分氢被合金吸收,并在凝固后保留在合金的内部。由于氢在液态合金中的扩散系数较大,因此液态置氢的速度较快。本研究基于Sievert’t定律推导出了液态置氢时,TC21合金中的氢含量与环境中的氢分压的关系。发现氢细化了TC21合金的晶粒,并且细化作用随着氢含量的增加而增强,随着氢含量的进一步增加,TC21合金中出现了α"相和孪晶结构。合金的显微硬度随氢含量的增加而降低。
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| 关 键 词： | 钛合金 氢 组织 显微硬度 |
| 收稿时间： | 2010/3/10 0:00:00 |
Effect of Melt Hydrogenation on Structure and Hardness of TC21 Alloy |
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| Wang Liang,Su Yanqing,Wang Shujie,Luo Liangshun,Guo Jingjie and Fu Hengzhi.Effect of Melt Hydrogenation on Structure and Hardness of TC21 Alloy[J].Rare Metal Materials and Engineering,2011,40(2):321-324. |
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| Authors: | Wang Liang Su Yanqing Wang Shujie Luo Liangshun Guo Jingjie and Fu Hengzhi |
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| Affiliation: | Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Melt hydrogenation was presented based on thermal hydrogenation processing(THP).Titanium alloy was melted in H2/Ar gaseous mixture.Part of hydrogen was absorbed by the alloy after cooling.Compared with THP,the hydrogenation process was very fast because of the big diffusion coefficient in melt alloy.The relationship between hydrogen content in TC21 alloy and partial pressure of H2 was deduced based on Sievert's law.It is found that the grain size and microhardness of TC21 alloy are decreased with more hydro... |
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| Keywords: | titanium alloy hydrogen structure microhardness |
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