Deng Ming, Wang Wei, Xu Runsheng, Lin Wenkang, Zhang Zhiqiang, Huang Yun. Comparative Research on Micro-mechanical Properties of Vanadium-titanium Sinter and Ordinary Sinter[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 104-111. doi: 10.7513/j.issn.1004-7638.2017.02.018
Citation:
Deng Ming, Wang Wei, Xu Runsheng, Lin Wenkang, Zhang Zhiqiang, Huang Yun. Comparative Research on Micro-mechanical Properties of Vanadium-titanium Sinter and Ordinary Sinter[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 104-111. doi: 10.7513/j.issn.1004-7638.2017.02.018
Deng Ming, Wang Wei, Xu Runsheng, Lin Wenkang, Zhang Zhiqiang, Huang Yun. Comparative Research on Micro-mechanical Properties of Vanadium-titanium Sinter and Ordinary Sinter[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 104-111. doi: 10.7513/j.issn.1004-7638.2017.02.018
Citation:
Deng Ming, Wang Wei, Xu Runsheng, Lin Wenkang, Zhang Zhiqiang, Huang Yun. Comparative Research on Micro-mechanical Properties of Vanadium-titanium Sinter and Ordinary Sinter[J]. IRON STEEL VANADIUM TITANIUM, 2017, 38(2): 104-111. doi: 10.7513/j.issn.1004-7638.2017.02.018
1. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China;
2. The Ironmaking Plant of Pangang Group Xichang Steel and Vanadium Co. Ltd, Xichang 615012, Sichuan, China
In this paper Vivtorinox indentation had been used to detect micro-hardness of the common minerals in vanadium-titanium sinter and ordinary sinter,and the micro hardness of different minerals had been compared as well as indentation crack initiation and propagation had been analyzed. Micro-hardness measurement shows that the common minerals in two kinds of sinter with their hardness at descent order are: perovskite,titanium hematite,calcium ferrite,mixed corrosion structure,titanium magnetite,silicate;hematite,mixed corrosion structure,calcium ferrite,magnetite,silicate.Above all,the micro hardness of vanadium-titanium sinter is higher than that of ordinary sinter,but some mineral in vanadium-titanium sinter appears many indentation cracks and longer propagation.The fracture toughness of perovskite and titanium hematite is lower,and readily for cracking. For sinter ore,the micro hardness can be increased and the quality of sintered ore can been improved by reducing the plate hematite and developing the calcium ferrite and the mixed corrosion structure.
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