Process of strengthening & toughening and cryogenic treatment of LD steel was researched.
研究了新型模具钢LD的强韧化及深冷处理工艺。
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Cryogenic liquids and their vapors can rapidly freeze human tissue and can cause many common materials such as carbon steel, rubber, and plastics to become brittle or even break under stress.
The influences of cryogenic treatments on the microstructure, material performances and the impact wear resistance of the superhigh manganese steel are studied.