Effects of Mn on microstructures and properties of hot rolled low carbon bainitic steels

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• 作者：Min Wang 王敏 ; Guang Xu 徐光 ; Li Wang ; Yaowen Xu…
• 关键词：Key wordsmanganese ; low carbon bainitic steel ; hot rolling ; strength
• 刊名：Journal of Wuhan University of Technology-Mater. Sci. Ed.
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：32
• 期：1
• 页码：186-189
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Materials Science, general;
• 出版者：Wuhan University of Technology
• ISSN：1993-0437
• 卷排序：32

文摘

Two kinds of Mn-Si-Mo low carbon steels were designed to study the effects of Mn on the microstructures and properties of hot rolled low carbon bainitic steels. To reduce the production cost, a very low Mo content of 0.13% was added in both steels. After hot rolling, the mechanical properties of samples were tested. Microstructure was observed and analyzed by optical microscope and transmission electron microscope. The results show that the strength of tested steels increases with the increase in Mn content, while the elongation decreases. When Mn content increases, the bainite microstructure increases. The results can provide a theoretical basis for composition design and industrial production of low cost low carbon bainitic steels.