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论材料强度与韧性之间的矛盾
几乎所有工程结构材料的要求都是既要强度高又要韧性好, 但通常情况下, 强度和韧性这两种性能是相互排斥的。这一点并不广为人知,因为在日常表达中, 这两个术语常常被视为同义词。 材料能够承受有限变形是赋予其韧性的关键因素, 因为这种特性可以使局部 ...
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