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摘要：
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在真空管式炉中对TA15钛合金进行渗氢处理，采用称重法得到了氢含量，并利用扫描电子显微镜观察其显微组织，研究了渗氢温度、渗氢压力对氢含量和显微组织的影响规律。研究结果表明：TA15钛合金的氢含量随着渗氢温度和渗氢压力的增加而增加，当渗氢温度为800 ℃、渗氢压力为0.3~0.4 MPa时，氢含量为0.28%，较稳定；渗氢温度和渗氢压力会影响TA15钛合金的组织形态，（α+β）相片层间距随渗氢温度和渗氢压力的升高而增加，渗氢后的β相含量随着氢含量的增加而增多，在炉冷过程中β相又析出了α相和氢化物。
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The hydrogen permeation treatment of TA15 titanium alloy in vacuum tube furnace was performed, and the hydrogen content was obtained by weighing. Then, the microstructure was observed by the scanning electron microscope, and the influence laws of hydrogen permeation temperature and hydrogen permeation pressure on the hydrogen content and microstructure were studied. The results show that the hydrogen content of TA15 titanium alloy increases with the increasing of hydrogen permeation temperature and hydrogen permeation pressure. When the hydrogen permeation temperature is 800 ℃ and the hydrogen permeation pressure is 0.3-0.4 MPa, the hydrogen content is 0.28% which is relatively stable. However, the hydrogen permeation temperature and hydrogen permeation pressure affect the microstructure of TA15 titanium alloy, the lamellar spacing of (α+β) phase increases with the increasing of hydrogen permeation temperature and hydrogen permeation pressure, the amount of β phase after hydrogen permeation increases with the increasing of hydrogen content, and during the furnace cooling, the β phase precipitates α phase and hydride.
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基金项目：
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国家科技重大专项（2018ZX04044001）
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作者简介：
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梁培新（1990-），女，硕士，助理工程师，E-mail：liangpeixin_110@163.com
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