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116问答网 > 金属材料的抗拉强度与屈服强度有什么区别

金属材料的抗拉强度与屈服强度有什么区别

2025-03-16 06:51:22

推荐回答（2个）

回答1：

抗拉强度指的是金属材料受拉力断裂时的应力，单位是MPa（牛顿/平方毫米）。可理解为最大破坏力。
屈服强度指的是：金属材料受拉力时，当外力不再增加、但材料本身的塑性变形仍在继续增加，此时的应力叫屈服强度。可理解为金属材料将被拉断前的应力。
屈服强度小于抗拉强度，更能准确的反应材料的受力状态。

回答2：

抗拉强度是指材料承受破坏的能力。屈服强度是材料承受塑性变形的能力。

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