Abstract

The change in mechanical properties due to low temperatures and the associated damage are studied for various metals. Cracks in austenitic steel are found to be due to large carbides, nitrides, and carbonitrides. The time for a brittle crack to propagate in metal depends on the grain size, the elastic modulus and the density.

中文翻译：

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对金属的低温损坏

摘要

对于各种金属，研究了由于低温引起的机械性能变化以及相关的损坏。发现奥氏体钢中的裂纹是由于大量的碳化物，氮化物和碳氮化物引起的。脆性裂纹在金属中传播的时间取决于晶粒尺寸，弹性模量和密度。