Research on Vibratory Stress Relief Mechanism
Research on Vibratory Stress Relief Mechanism
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发表时间：
2001
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通讯作者：
Lu Ya
中科院分区：
文献类型：
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作者：
Lu Ya
通过对热处理与振动应力消除(VSR)机理的分析比较，我们认为VSR与热处理在降低宏观残余应力方面有本质相似之处。它们都是通过塑性变形释放宏观残余应力，以减少金属残余弹性应变，但产生塑性变形的过程并不相似。论文还揭示了由于不同的时间效应引起的金属内部排列的不同变化，工作尺寸稳定性的差异。最后，我们得出结论，振动时效在许多场合与热处理一样实用，并且在尺寸稳定性和疲劳强度方面优于热处理。
Through making an analysis and comparison between the mechanism of the heat treatment and vibratory stress relief (VSR), we deem that VSR and heat treatment are similar in nature on reducing the macroscopic residual stress. They all release the macroscopic residual stress through plasticity deformation to reduce metal residual elasticity strain, but the process of making plasticity deformation is not alike. The paper also reveal the difference in working dimension stability based on the different variation in metal internal arrangement caused by the different time effect. Finally, we conclude that VSR is as practicable as heat treatment in many occasions and VSR is better than heat treatment in dimension stability and fatigue strength.