82问答网 > 金属疲劳裂纹扩展速度和硬度有关吗？

金属疲劳裂纹扩展速度和硬度有关吗？

2025-04-01 07:03:55
推荐回答（1个）
回答1：

铬。 。 。最高硬度材料：钻石（10莫氏硬度）;硬度最大的金属：铬（莫氏硬度8.5）;熔点最高的金属：钨（摄氏3410℃）;熔点最低的金属：汞（-38.83摄氏度℃）;最密集的金属：锇（的22661公斤/立方米的密度）;最轻的金属：锂（535千克/米3的密度）

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