Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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Transactions of Nonferrous Metals Society of China

Vol. 29    No. 7    July 2019

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Mechanical properties and wear resistance of medium entropy Fe40Mn40Cr10Co10/TiC composites
Jian-ying WANG1, Jing-hua FANG1, Hai-lin YANG1, Zhi-lin LIU2, Rui-di LI1, Shou-xun JI3, Yun WANG3, Jian-ming RUAN1

1. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China;
2. School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China;
3. Institute of Materials and Manufacturing, Brunel University London, Uxbridge, Middlesex UB8 3PH, U. K.

Abstract:The Fe40Mn40Cr10Co10/TiC (volume fraction of TiC, 10%) composites were synthesized in combination of ball milling and spark plasma sintering (SPS) in the present work. Mechanical properties and wear resistance of the Fe40Mn40Cr10Co10/TiC composites were individually investigated. It was found that TiC particles homogenously distributed in the Fe40Mn40Cr10Co10/TiC composite after being sintered at 1373 K for 15 min. Meanwhile, grain refinement was observed in the as-sintered composite. Compared with the pure Fe40Mn40Cr10Co10 medium entropy alloy (MEA) matrix grain, addition of 10% TiC particles resulted in an increase in the compressive strength from 1.571 to 2.174 GPa, and the hardness from HV 320 to HV 872. Wear resistance results demonstrated that the friction coefficient, wear depth and width of the composite decreased in comparison with the Fe40Mn40Cr10Co10 MEA matrix. Excellent mechanical properties and wear resistance could offer the Fe40Mn40Cr10Co10/TiC composite a very promising candidate for engineering applications.


Key words: TiC; Fe40Mn40Cr10Co10/TiC composites; mechanical properties; wear resistance; spark plasma sintering

ISSN 1004-0609
CN 43-1238/TG

ISSN 1003-6326
CN 43-1239/TG

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