| 17-4PH不锈钢时效析出相的形成过程 |
| |
| 引用本文： | 关庆丰,邱冬华,李艳,陈康敏,安春香,龙荷荪.17-4PH不锈钢时效析出相的形成过程[J].吉林大学学报(工学版),2011,41(3):654-658. |
| |
| 作者姓名： | 关庆丰 邱冬华 李艳 陈康敏 安春香 龙荷荪 |
| |
| 作者单位： | 1. 江苏大学材料科学与工程学院,江苏镇江,212013
2. 上海电气电站设备有限公司上海汽轮机厂,上海,200240 |
| |
| 基金项目： | 国家自然科学基金项目(50671042); 江苏大学科技创新团队及高级人才基金项目(07JDG032) |
| |
| 摘 要： | 对17-4PH(0Cr17Ni4Cu4Nb)马氏体不锈钢进行了3种不同条件下的时效处理。利用透射电子显微镜(TEM)技术详细分析了17-4PH不锈钢时效处理后析出相的形成过程。实验结果表明,时效条件为442℃,8h空冷时,在马氏体内部析出弥散的、尺寸小于10nm的ε-Cu、Nb6C(N)5和Nb2C(N)型亚稳相颗粒;时效条件为465℃,4h空冷时,析出尺寸为10～15nmε-Cu和稳定的NbC(N)相;时效条件为480℃,1h空冷时,析出尺寸为20～25mm的ε-Cu+NbC(N)相,且析出相NbC(N)与马氏体为共格析出,取向关系为NbC001]//α-Fe001]。
|
| 关 键 词： | 金属材料 17-4PH不锈钢 时效 组织结构 |
The formation behavior of aging precipitates on 17-4PH stainless steel |
| |
| GUAN Qing-feng,QIU Dong-hua,LI Yan,CHEN Kang-min,AN Chun-xiang,LONG He-sun.The formation behavior of aging precipitates on 17-4PH stainless steel[J].Journal of Jilin University:Eng and Technol Ed,2011,41(3):654-658. |
| |
| Authors: | GUAN Qing-feng QIU Dong-hua LI Yan CHEN Kang-min AN Chun-xiang LONG He-sun |
| |
| Affiliation: | GUAN Qing-feng1,QIU Dong-hua1,LI Yan1,CHEN Kang-min1,AN Chun-xiang2,LONG He-sun2(1.School of Material Science and Engineering,Jiangsu University,Zhenjiang 212013,China,2.Shanghai Electric Power Equipment Co.Ltd.,Shanghai Steam Turbine Plant,Shanghai 200240,China) |
| |
| Abstract: | Aging treatment of a martensite stainless steel(17-4PH) was conducted at three different regimes:(1) 442 °C,8 h air cooled,(2) 465 °C,4 h air cooled and(3) 480 °C,1 h air cooled,respectively.The formation of aging precipitates on 17-4PH stainless steel was investigated by Transmission Electron Microscope(TEM) and Selected Area Electron Microscope(SAEM) technique.The results show that under regime(1),ε-Cu particles and metastable phases Nb6C(N)5 and Nb2C(N) with the sizes less than 10 nm were precipitated dispersedly in the martensite.Under regime(2),ε-Cu particles and stable phase NbC(N) with about 10-15 nm in size were precipitated.Under regime(3),the sizes of precipitated particles in the martensite became larger,and the type of precipitates were still ε-Cu and NbC(N) particles with size about 20-25 nm.NbC(N) phase and martensite were coherently precipitated,and the orientation relationship between both phases was NbC//α-Fe. |
| |
| Keywords: | metal materials 17-4PH stainless steel aging microstructure |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
