The Effect of Alloying Elements on Microstructure of 0,2%C TRIP Steel
The Effect of Alloying Elements on Microstructure of 0,2%C TRIP Steel
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%20效果%20of%20合金化%20元素%20on%20显微组织%20of%200,2%C%20TRIP%20钢
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
B. Mašek
中科院分区：
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作者：
L. Kučerová;H. Jirková;B. Mašek
采用三种含0.2%C的低合金相变诱发塑性（TRIP）钢。第一个是基于最常见和流行的0.2%C - 1.5%Mn - 1.8%Si的概念，并作为参考材料。第二种钢进一步用0.06%的铌微合金化。第三种钢的锰含量较低，为0.6%，铬含量为0.8%。对每一种钢都进行了结合增量变形的热机械加工。测试了不同的冷却速率和不同的变形步骤对最终组织和性能的影响。经过优化后，所有钢都获得了具有利用TRIP效应潜力的组织。获得了非常好的力学性能，延展性一般在30-40%之间，抗拉强度在680-835 MPa之间。
Three low alloyed transformation induced plasticity (TRIP) steels with 0.2%C were used in this work. The first one was based on the most common and popular 0.2%C - 1.5%Mn - 1.8%Si concept and was used as a reference material. The second steel was further micro-alloyed by 0.06% of Niobium. The third steel was designed with lower manganese content of 0.6% and additional alloying by 0.8% of Chromium. Thermo-mechanical processing with incorporated incremental deformation was applied to each steel. Various cooling rates and numbers of deformation steps were tested with regard to final microstructure and properties. After this optimization, microstructures with the potential to utilize TRIP effect were achieved for all steels. Very good mechanical properties were obtained with ductility typically in the interval of 30-40% and the tensile strengths in the range of 680-835 MPa.