Peng Jun, Niu Liang, Wang Jian, An Lei, Guo Yong, An Shengli. Effect of Submicron-CeO2 Particles on the Microstructure and Performance of Low Carbon Steel[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(3): 127-130. doi: 10.7513/j.issn.1004-7638.2015.03.025
Citation:
Peng Jun, Niu Liang, Wang Jian, An Lei, Guo Yong, An Shengli. Effect of Submicron-CeO2 Particles on the Microstructure and Performance of Low Carbon Steel[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(3): 127-130. doi: 10.7513/j.issn.1004-7638.2015.03.025
Peng Jun, Niu Liang, Wang Jian, An Lei, Guo Yong, An Shengli. Effect of Submicron-CeO2 Particles on the Microstructure and Performance of Low Carbon Steel[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(3): 127-130. doi: 10.7513/j.issn.1004-7638.2015.03.025
Citation:
Peng Jun, Niu Liang, Wang Jian, An Lei, Guo Yong, An Shengli. Effect of Submicron-CeO2 Particles on the Microstructure and Performance of Low Carbon Steel[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(3): 127-130. doi: 10.7513/j.issn.1004-7638.2015.03.025
Microstructure refinement is an important means to improve the performance of the steel and oxides metallurgy is an important method of refining microstructures. In this paper SEM observation and hardness measurement had been made on the as-cast and as-rolled steel with submicron-CeO2 particle addition during steelmaking. SEM observation results show that the addition of CeO2 submicron powders can refine microstructure of low carbon steel. Addition of CeO2 leads to average grain size of cast decreasing from 120 μm to 30 μm,while the pearlite quantity increase and pearlite interlamellar spacing reduce from 0.57 μm to 0.11 μm. Increasing the quantity of CeO2 powder,the hardness of Q235 steel increases. When the CeO2 content is 0.7%,the resulting hardness increases by 133.4%.
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