对未置氢及置氢Ti-6Al-4V合金进行了TG/DSC试验,研究了置氢钛合金的除氢行为.结果表明,当温度超过600℃时,置氢钛合金的失重规律与未置氢钛合金具有较大的差别.当加热温度在600～900℃之间时,置氢钛合金的失重随着氢含量的增加而增加.这是由于置氢合金中的亚稳相发生了分解.不考虑合金氧化的影响,置氢钛合金的最大失重与合金中的氢含量一致.置氢钛合金的最佳除氢温度为750℃.对于不同氢含量的置氢钛合金,其除氢工艺是相同的.
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