|
|
|
| Effect of cerium addition on microstructure and mechanical properties of as-cast high grade knives steel |
| Xi-ya Qiao1, Xiao Han1, Zhi-jun He1, Zhen Zhuang1, Xin Yang1, Fei-xiong Mao2 |
| 1 School of Materials and Metallurgy, University of Science and Technology Liaoning, Anshan 114051, Liaoning, China; 2 Ningbo Key Laboratory of Marine Protection Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang, China |
|
|
|
|
Abstract The carbides and mechanical properties of as-cast high grade knives steel with and without cerium (Ce) addition were studied. The as-cast microstructure of the steel, the size of carbide precipitation, carbide morphology, and mechanical properties were systematically studied through optical microscopy, scanning electron microscopy, and X-ray diffraction. Besides, through the Equilib module of the FactSage thermodynamics software, the changes in the precipitation type of the inclusions with Ce during the solidification of the steel were calculated. The results indicate that the rare earth Ce is added into the steel to refine the as-cast microstructure of the steel. The types of inclusions in the steel are changed by the addition of Ce. The precipitated carbide morphology changes from a complex rod shape to a relatively single lamellar shape. The rare earth inclusions formed in steel by a moderate addition of Ce can be severed as the core of heterogeneous nucleation of carbides, which reduce the size of carbide precipitation, promote the uniform distribution of carbide in the as-cast steel, and improve the mechanical properties of the as-cast high grade knives steel.
|
|
|
|
|
|
| Cite this article: |
|
Xi-ya Qiao,Xiao Han,Zhi-jun He, et al. Effect of cerium addition on microstructure and mechanical properties of as-cast high grade knives steel[J]. Journal of Iron and Steel Research International, 2022, 29(12): 1986-1994.
|
|
|
|
| [1] |
Shao-jie Lv, Shui-ze Wang, Gui-lin Wu, Jun-heng Gao, Xu-sheng Yang, Hong-hui Wu, Xin-ping Mao. Application of phase-field modeling in solid-state phase transformation of steels[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2022, 29(6): 867-880. |
| [2] |
Xiang-dong Huo, Zhi-wei Lv, Chen Ao, Lie-jun Li, Ji-nian Xia, Song-jun Chen. Effect of strain-induced precipitation on microstructure and properties of titanium micro-alloyed steels[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2022, 29(6): 983-993. |
| [3] |
Xin-li Song, Chang-hu Huang, Juan Jia, Jing Liu. Effect of strain rate on fracture behaviour of Cr18Ni11Ti stainless steel at high temperatures[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2022, 29(6): 1004-1011. |
| [4] |
Kai Wang, Chao-jie Yan, Chen-hua Yuan, Xi-chen Yang, Li-jia Zhao, Qiang Wang. Progress in research on diffusional phase transformations of Fe–C alloys under high magnetic fields[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2022, 29(5): 707-718. |
| [5] |
Xiao-xiao Liu, Zheng Zhang, Jie Zhang, Ran Yang, Cheng-shuang Yu, Jun-wei Qiao, Li-na Han. Enhanced strength and toughness in 40CrNiMo steels by austempering below martensite start temperature[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2022, 29(5): 810-818. |
| [6] |
Bing Han, Wei-hao Wan, Dan-dan Sun, Cai-chang Dong, Lei Zhao, Hai-zhou Wang. A deep learning-based method for segmentation and quantitative characterization of microstructures in weathering steel from sequential scanning electron microscope images[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2022, 29(5): 836-845. |
|
|
|
|
2022, Vol. 29 
