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本文论述了均质处理和固溶处理对18Ni(300)马氏体时效钢掺镱光纤激光焊接的影响前言马氏体时效钢是一种不同于普通钢的特殊的超高强度钢,因为它通过无碳冶金反应硬化。20世纪60年代初,国际镍有限公司首次开发出了马氏体18Ni钢,包括下列几种主要成分:Ni(18.9%)、Co(17.0%)、Mo(3.8%)和Fe(平衡)。这种合金继准二元Fe-Ni系统后具有体心立方马氏体结构,退火后具有较好的韧性。它的马氏体具有较高的位错密度,易于析出硬化。
This article discusses the effects of homogenization and solution treatment on 18Ni (300) martensitic aging steel Yb-doped fiber laser welding. Pre-martensitic aging steel is a special ultra-high strength steel that is different from ordinary steel because it Hardened by a carbon-free metallurgical reaction. In the early 1960s, International Nickel Co. Ltd. developed martensite 18Ni for the first time and includes the following major components: Ni (18.9%), Co (17.0%), Mo (3.8%) and Fe (Balance). This alloy has the body-centered cubic martensite structure following the quasi-binary Fe-Ni system and has good toughness after annealing. Its martensite has a high dislocation density, easy precipitation hardening.