论文部分内容阅读
研究了铬锰氮双相（ 马氏体奥氏体）ＺＧ０Ｃｒ１３Ｍｎ８Ｎ 钢在４００ ～７００ ℃温度区间内回火后的显微组织。结果表明，ＺＧ０Ｃｒ１３Ｍｎ８Ｎ 钢在５８０ ℃回火时奥氏体量增多；淬火和逆变奥氏体在低于５８０ ℃回火时都十分稳定，而高于５８０ ℃回火时则不稳定；随着回火温度的升高，马氏体板条特征愈加不明显，且在板条马氏体和奥氏体内均有Ｍ７Ｃ３ 型碳化物析出、聚集和长大。
The microstructure of ZG0Cr13Mn8N duplex steel (martensite-austenite) after tempering in the temperature range of 400 ~ 700 ℃ was studied. The results show that the amount of austenite increases when the steel of ZG0Cr13Mn8N is tempered at 580 ℃. Both quenched and inverted austenite are very stable when tempered below 580 ℃ and unstable when tempered at 580 ℃. Tempering temperature increases, martensitic lath characteristics more obvious, and in the lath martensite and austenite are M7C3 type carbide precipitation, aggregation and growth.