应力松弛是材料科学中的一个概念,是指当材料的结构产生形变时材料所受到的应力会有所减小。应力松弛会有一定的坏处,例如在高压蒸汽管道中,螺栓的锁紧力可能随时间降低,所以为防漏气,每隔一段时间需要拧紧一次[1]。
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