Effect of Carbon on Microstructures and Mechanical Properties of Co-free Fe40Mn30Ni10Cr10Al10 High-entropy Alloy
BAI Li1,2, WANG Yuzhe1, LYU Yukun1, YAN Yi1, FU Meiwen1
1 School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China 2 School of Intelligent Manufacturing, Nanyang Institute of Technology, Nanyang 473004, China
Abstract: Fe40Mn30Ni10Cr10Al10 high-entropy alloy was successfully prepared by vacuum arc melting, and 5at% carbon was added. The effect of carbon on phase constituents, microstructure and mechanical properties of the Fe40Mn30Ni10Cr10Al10 high-entropy alloy was studied systematically. It was found that Fe40Mn30Ni10Cr10Al10 high-entropy alloy was composed of FCC phase, BCC phase and B2 nano-particles, and B2 nano-particles embedded in BCC phase. Addition 5at% carbon to Fe40Mn30Ni10Cr10Al10 high-entropy alloy, BCC phase and B2 nano-particles transformed into FCC phase, and a large amount of M7C3 carbide appeared along grain boundaries. Due to the addition of carbon, the elongation of the alloys increased from 18% to 26%, while the tensile strength of the alloy changed little, which was kept at about 730 MPa.
作者简介: 白莉,2010年毕业于重庆大学,获得材料加工工程专业硕士学位,同年加入南阳理工学院工作。现为西安工业大学在读博士研究生,在陈建教授和吕煜坤副教授的指导下进行科学研究。主要从事高熵合金的成分设计以及强韧化研究。 吕煜坤,2013年毕业于重庆大学,获得高分子化学与物理博士学位,同年加入西安工业大学工作至今。主要从事高熵合金、抗震钢及疲劳性能以及新型铝镁合金的研究工作。近年来,在新材料科学领域发表论文10余篇,包括Advanced Materials Research、Materials & Design、Construction and Building Materials等。
引用本文:
白莉, 王宇哲, 吕煜坤, 颜屹, 付梅文. 碳对无Co高熵合金Fe40Mn30Ni10Cr10Al10组织以及力学性能的影响[J]. 材料导报, 2020, 34(17): 17072-17076.
BAI Li, WANG Yuzhe, LYU Yukun, YAN Yi, FU Meiwen. Effect of Carbon on Microstructures and Mechanical Properties of Co-free Fe40Mn30Ni10Cr10Al10 High-entropy Alloy. Materials Reports, 2020, 34(17): 17072-17076.
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