|
|
|
| Effect of Quenching, Lamellarizing and Tempering Process on Strength and Toughness of 9NiCrMo Steel |
| CHENG Jian-hua, SHEN Jun-chang, HE Yi-zhu, SU Hang, CUI Li-hui |
1. School of Materials Science and Engineering, Anhui University of Technology, Ma’anshan 243002, Anhui, China
2. Institute for Engineering Steel, Central Iron and Steel Research Institute, Beijing 100081, China |
|
|
|
|
Abstract The mechanical properties of 9NiCrMo steel subjected to quenching and tempering (QT) and quenching, lamellarizing and tempering (QLT) heat treatments was investigated, and the microstructure was systematically studied by means of optical microscope(OM) and scanning electron microscope (SEM). Moreover, quantity and distribution of reversed austenite in 9NiCrMo steel after QLT heat treatment was studied by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Based on the experimental results, the effect and mechanism of QLT heat treatment on mechanical properties of 9NiCrMo steel were analyzed. The results indicate that QLT heat treatment can improve the cryogenic toughness of 9NiCrMo steel effectively without reducing the strength. And dual phase structure and the changed distribution of the reversed austenite after QLT heat treatment are the main reasons which improve the cryogenic toughness.
|
|
Received: 05 November 2013
Published: 10 September 2014
|
|
|
|
| [1] |
沈俊昶.Ni-Cr-Mo系高强度高韧性钢强化热处理工艺的研究[D]..钢铁研究总院博士学位论文, 2007, :4-9
|
| [1] |
沈俊昶.Ni-Cr-Mo系高强度高韧性钢强化热处理工艺的研究[D]..钢铁研究总院博士学位论文, 2007, :4-9
|
| [2] |
Syn C K, Fultz B, Morris J W.Mechanical stability of retained austenite in tempered 9Ni steel[J].Metal Trans A, 1978, 9(11):1635-1640
|
| [2] |
Syn C K, Fultz B, Morris J W.Mechanical stability of retained austenite in tempered 9Ni steel[J].Metal Trans A, 1978, 9(11):1635-1640
|
| [3] |
Fultz B.Kim J I,Kim Y H,et alThe stability of precipitated austenite and the toughness of 9Ni steel[J].Metal Trans A, 1985, 16(12):2237-2250
|
| [3] |
Fultz B.Kim J I,Kim Y H,et alThe stability of precipitated austenite and the toughness of 9Ni steel[J].Metal Trans A, 1985, 16(12):2237-2250
|
| [4] |
Fultz B, Morris J W.The mechanical stability of precipitated austenite in 9Ni steel[J].Metallurgical Transactions A, 1985, 16(12):2251-2256
|
| [4] |
Fultz B, Morris J W.The mechanical stability of precipitated austenite in 9Ni steel[J].Metallurgical Transactions A, 1985, 16(12):2251-2256
|
| [5] |
雷鸣, 郭蕴宜.钢中沉淀奥氏体的形成过程及其在深冷下的表现[J].金属学报, 1989, 25(1):13-17
|
| [5] |
雷鸣, 郭蕴宜.钢中沉淀奥氏体的形成过程及其在深冷下的表现[J].金属学报, 1989, 25(1):13-17
|
| [6] |
张弗天.王景韫.郭蕴宜. .Ni9钢中回转奥氏体与低温韧性[J].[J].金属学报., 1981, 20(6):405-410
|
| [6] |
张弗天.王景韫.郭蕴宜. .Ni9钢中回转奥氏体与低温韧性[J].[J].金属学报., 1981, 20(6):405-410
|
| [7] |
张永权.国内外舰艇用钢的发展[G]. 钢铁研究总院. ., 1992, :-
|
| [7] |
张永权.国内外舰艇用钢的发展[G]. 钢铁研究总院. ., 1992, :-
|
| [8] |
沈俊昶.Ni-Cr-Mo系高强度高韧性钢强化热处理工艺的研究[D]. .钢铁研究总院博士学位论文, 2007, :60-64
|
| [8] |
沈俊昶.Ni-Cr-Mo系高强度高韧性钢强化热处理工艺的研究[D]. .钢铁研究总院博士学位论文, 2007, :60-64
|
| [9] |
肖纪美.金属的韧性与韧化[M]. 上海: 上海科学技术出版社, 1980, 60-70.., 1980, :60-65
|
| [9] |
肖纪美.金属的韧性与韧化[M]. 上海: 上海科学技术出版社, 1980, 60-70.., 1980, :60-65
|
| [10] |
Fultz B, Kim J I, Kim Y H, et al.The chemical composition of precipitated austenite in 9Ni steel[J].Metallurgical Transactions A, 1986, 17(6):967-971
|
| [10] |
Fultz B, Kim J I, Kim Y H, et al.The chemical composition of precipitated austenite in 9Ni steel[J].Metallurgical Transactions A, 1986, 17(6):967-971
|
| [11] |
肖纪美.金属的韧性与韧化[M]. 上海: 上海科学技术出版社, ., 1980, :90-95
|
| [11] |
肖纪美.金属的韧性与韧化[M]. 上海: 上海科学技术出版社, ., 1980, :90-95
|
| [1] |
NIU Yan-long, LIU Qing-you, JIA Shu-jun, TONG Shuai, WANG Bing, REN Yi. Influence of microstructure and M/A island evolution on toughness of pipeline steel under controlled cooling process[J]. Iron and Steel, 2020, 55(6): 91-100. |
| [2] |
GAN Gui-ping,YE Jiang,FAN Lei. Effect of tempering treatment on microstructure and low temperature toughness of a low carbon bainite steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(3): 258-264. |
| [3] |
DUAN He, SHAN Yi-yin, YANG Ke, SHI Xian-bo, YAN Wei, REN Yi. Experimental on process, microstructure and mechanical properties of X80 high strength pipeline steel for low temperature[J]. Iron and Steel, 2020, 55(2): 103-111. |
| [4] |
WANG Changshun，GUO Fujian，LI Guanglong，SHANG Chengjia. Influence of central segregation control on #br# low temperature toughness of steel[J]. Iron and Steel, 2019, 54(8): 202-208. |
| [5] |
ZHOU Cheng， ZHAO Tan， ZHU Long-hao，JIN Yao-hui， LI Jia-an. Effect of TMCP on microstructure evolution and mechanical properties of low-carbon Ni-Nb steel[J]. Iron and Steel, 2019, 54(4): 68-72. |
| [6] |
YANG Yue-hui,QIN Hong-xing,YUAN Shao-qiang,LIANG Guo-li. Simulation of rapid tempering of 7%Ni steel for LNG[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2019, 31(12): 1080-1085. |
|
|
|
|
2014, Vol. 49 
