|
|
|
| Effect of Holding Time on Microstructure of Proeutectoid Ferrite in Fe0.76%C Alloy in High Magnetic Field |
| GONG Minglong,ZHAO Xiang,SONG Jianyu,WANG Shoujing,ZUO Liang |
| Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110004, Liaoning, China |
|
|
|
|
Abstract The microstructure of proeutectoid ferrite transformed from austenite in Fe076%C alloy after holding at 807 ℃ in magnetic field(12 T).It was found that the amount and grain number of proeutectoid ferrite in the steel treated in magnetic field were more than that treated without magnetic field.It is assumed that the magnetic field decreased the driving force of proeutectoid ferrite nucleation. The proeutectoid ferrite grains elongated along the magnetic field direction, and the angles between the major axis of proeutectoid ferrite and magnetic field direction decreased with the increase of holding time.It is because austenite grains in the sample grew with the holding time, and the distance between the nuclei of proeutectoid ferrite became larger, leading to increase of diffusion distance of Fe atom from austenite to proeutectoid ferrite.
|
|
Received: 01 January 1900
|
|
|
|
| [1] |
CAO Jing-hua1,PAN Hong-bo2,3,ZHANG Jing1,ZHANG Teng-fei2,LI Xu-dong2,LIU Wei-ming2,3. Continuous cooling transformation of NbTi microcarbon deep drawing dualphase steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(4): 322-328. |
| [2] |
YANG Geng-wei1,HU Zhuo-li1,YIN Qi-long1,MAO Xin-ping1,2,MIAO Li-sha1,LIU Yang2. Effect of phase transformation time on microstructure and mechanical properties of hotrolled TRIP steel produced by CSP process[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(2): 143-149. |
| [3] |
FENG Lu-lu1,2,3,WU Kai-ming1,LI Ping-ping2,CHEN Shu-min2,LU Xiu-yu4,QIAO Wen-wei3. Effect of Nb on microstructure transformation in reheating process of 2000MPa bridge cable steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(1): 60-65. |
| [4] |
ZHAI Zhan-jiang1,2,CAO Yang1, 3,ZHAO Lin1,PENG Yun1,TIAN Zhi-ling1,ZHU Jiao4. Effect of heat input on microstructure and mechanical properties of DP980 laser welded steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(1): 66-73. |
| [5] |
WANG Yunan，JIANG Xiaofang. Investigation on inclusions and microstructure of #br#
offshore steel for high heat input welding[J]. Iron and Steel, 2019, 54(8): 209-215. |
| [6] |
YANG Geng-wei,LU Jia-wei,SUN Hui,FANG Zi-wei,ZHOU Yi-liao,YAO Nan. Microstructure, mechanical properties and phase transformation behavior of TiV microalloyed highstrength hotstrip steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2019, 31(8): 726-732. |
|
|
|
|
2008, Vol. 43 
