Vibratory stress relief has been reported to induce crystal lattice movements, which are forms of the internal friction of a material. In this study, low-carbon steel specimens were vibrated to analyze the evolutions of their internal frictions and stress-relieving effects. Specific vibration frequencies were found to produce relatively higher internal frictions and stress-relief ratios. For a fixed vibration frequency, higher vibrational amplitudes were found to induce higher internal frictions. When vibrated for the same amount of time but at varying amplitudes, the internal frictions of the specimens either decreased with time (which indicates the effects of stress relief) or increased with time and fracturing the specimen owing to fatigue. These results indicate that the increasing of internal friction could serve as an index for fatigue crack nucleation in low-carbon steel.

据报道，振动应力的释放会引起晶格运动，这是材料内部摩擦的形式。在这项研究中，对低碳钢试样进行振动分析其内部摩擦和应力消除效果的演变。发现特定的振动频率会产生相对较高的内部摩擦和应力释放比。对于固定的振动频率，发现较高的振幅会引起较高的内部摩擦。当以相同的时间振动但振幅不同时，试样的内摩擦会随着时间的推移而减小（这表明应力释放的效果），或者随着时间的推移而增大，并且由于疲劳而使试样断裂。