The dependence of activation energy and stress exponent upon the structure state is elucidated.
研究热形变过程激活能和应力指数与形变组织的关系。
It was found that 2618 aluminum alloy exhibits a higher creep stress exponent. The creep behaviors of the alloy can be described by using threshold stress.
试验结果表明：2618铝合金表现出较高的蠕变应力指数，在引入门槛应力后，该合金的蠕变行为可得到满意解释；
It was found that 2618 aluminum alloy exhibits a higher creep stress exponent. The creep behaviors of the alloy can be described by using threshold stress.
试验结果表明：2618铝合金表现出较高的蠕变应力指数，在引入门槛应力后，该合金的蠕变行为可得到满意解释；
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