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本文采用阴极充氢方法，研究氢对７１７５铝合金不同时效状态屈服行为的影响规律。结果表明，在相同充氢时间的条件下，合金吸氢能力随时效时间的延长而下降；屈服强度则随氢浓度的平方根成线性下降。
In this paper, the cathode hydrogen charging method was used to study the effect of hydrogen on the yield behavior of 7175 aluminum alloy under different aging conditions. The results show that under the same charging time, the hydrogen absorption capacity of the alloy decreases with the aging time. The yield strength decreases linearly with the square root of the hydrogen concentration.