Rapid cooling after nitrocarburizing, martensite structure is obtained at the diffusion layer.
氮碳共渗后快冷，在渗层获得含氮碳的马氏体组织。
Unlike that of tempered martensite structure, there is little effect of oxygen content on the fatigue properties of ferrite-pearlite steel.
与调质回火马氏体组织不同，氧含量对铁素体-珠光体组织的疲劳性能没有明显的影响。
The final structure obtained from tempering a fully hardened steel is called tempered martensite.
回火完全淬硬钢得到的最终组织结构被称为回火马氏体。
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