固溶和时效对0Cr21Ni6Mn9N含氮奥氏体不锈钢组织的影响
Influence of Solid Solution and Ageing Treatment on Microstructure of 0Cr21Ni6Mn9N Nitrogenous Austenitic Stainless Steel
摘 要
采用光学显微镜研究了固溶和时效处理对0Cr21Ni6Mn9N含氮奥氏体不锈钢显微组织的影响。结果表明: 0Cr21Ni6Mn9N钢冷拔管经1 100 ℃固溶处理后, 晶粒尺寸变大, 孪晶数量增多且层厚增加, 晶界及晶粒均很清晰, 无任何析出物; 经固溶及650 ℃时效处理后, 晶粒尺寸与固溶态的相差不大, 但晶界上有大量黑色粒状M23C6相析出; 经固溶及850 ℃时效处理后, 出现大晶粒吞并小晶粒的现象,晶粒发生了二次长大, 且晶界处的M23C6相数量较650 ℃时效的有所减少。
固溶时效处理
退火孪晶
析出相
0Cr21Ni6Mn9N steel
solid solution and ageing treatment
annealing twin
precipitate
Abstract
Influences of solid solution treatment and ageing processing on microstructure of 0Cr21Ni6Mn9N nitrogenous austenitic stainless steel were investigated by metallographic optical microscopy technigue. The results show that after solution treatment at 1 100 ℃, the grains of 0Cr21Ni6Mn9N steel cold drawn tube grow, more twins appear and the layer thickness of twin increases, and there is no precipitates on grain boundary. However, after ageing treatment at 650 ℃, the grain size has no obvious difference with that after solid solution, and there are a lot of black acicular M23C6 phases precipitating on grain boundaries. After ageing treatment at 850 ℃, the grains grow up again because big grains swallow small grains, the M23C6 phases on grain boundaries decrease compared with those at 650 ℃.
中图分类号 TG142.1
所属栏目 试验研究
基金项目 江西省自然科学基金资助项目(2010GQC0154); 江西省金属材料微结构调控重点实验室项目(JW201223003)
收稿日期 2013/7/19
修改稿日期 2014/4/14
网络出版日期
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备注袁丰伟(1985-), 男, 河南信阳人, 硕士研究生。
引用该论文: YUAN Feng-wei,ZHENG Hai-zhong,LU Shi-qiang,HU Chun-wen,WANG Xiao-zhen. Influence of Solid Solution and Ageing Treatment on Microstructure of 0Cr21Ni6Mn9N Nitrogenous Austenitic Stainless Steel[J]. Materials for mechancial engineering, 2014, 38(6): 31～34
袁丰伟,郑海忠,鲁世强,胡春文,王晓震. 固溶和时效对0Cr21Ni6Mn9N含氮奥氏体不锈钢组织的影响[J]. 机械工程材料, 2014, 38(6): 31～34
被引情况:
【1】徐桂芳,严羽,徐文慧,程晓农,李冬升, "03Cr16Mn14Mo2N奥氏体不锈钢的热疲劳行为",机械工程材料 40, 99-102(2016)
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参考文献
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【3】KASSNER M E, GEANTIL P. Yield stress of 21-6-9 stainless steel over very wide ranges of strain rates and temperatures［J］.ASM International,2012,21:69-73.
【4】HARVEY D P. TERRELL J B. SUDARSHAN T S. Hydrogen effects on the ductile to brittle transition behavior of 21-6-9 stainless steel［J］.Journal of Materials Science,1994,29:5485-5490.
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【6】毛卫民,李新兵.金属的再结晶与晶粒长大［M］.北京:冶金工业出版社,1994.
【7】杨亮,董建新,何智勇,等.690合金管冷轧及退火处理过程中的组织演变［J］.材料热处理学报,2011,32(12):98-104.
【8】杨刚,孙利军,张丽娜,等.形变孪晶的消失与退火孪晶的形成机制［J］.钢铁研究学报,2009,21(2):39-43.
【9】李华英,丁桦,蔡志辉,等.固溶处理对Fe-25Mn-1Al-0.2C刚组织性能的影响［J］.材料热处理学报,2012,33(9):70-74.
【10】黄西成,陈裕泽,陈勇梅,等.2169刚细观损伤参数识别［J］.材料工程, 2007(4):50-52.
【11】代永娟,米振莉,唐荻,等.退火温度对Fe-Mn-TWIP钢微观结构的影响［J］.材料热处理学报,2011,32(3):115-119.
【12】水恒勇,刘继雄,李美琳,等.热处理工艺对新型节镍奥氏体无磁钢组织和性能的影响［J］.机械工程材料,2012,36(5):69-72.
【13】刘小勇,程世长,高家诚,等.新型12%Cr耐热钢650℃长时时效后的组织和高温强度［J］.机械工程材料,2011,35(3):56-59.
【14】VACH M, KUNIKOVA T, DOMANKOVA M. Evolution of secondary phases in austenitic stainless steels during long-term exposures at 600, 650 and 800 ℃ ［J］.Materials Characterization,2008,59:1792-1798.
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