INNOVATIVE METHOD FOR PREPARATION OF Fe–Al–Cr INTERMETALLIC FUNCTIONALLY GRADED MATERIAL ON 1045 STEEL WITH UNIQUE TRIBOLOGICAL PROPERTIES

Xixi Luo, Zhengjun Yao, Pingze Zhang, Xuewei Tao and Yu Chen
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Xixi Luo: School of Materials Engineering, Xi’an Aeronautical University, Xi’an, Shaanxi 710077, P. R. China†College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 211106, P. R. China
Zhengjun Yao: #x2020;College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 211106, P. R. China
Pingze Zhang: #x2020;College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 211106, P. R. China
Xuewei Tao: #x2020;College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 211106, P. R. China
Yu Chen: #x2021;School of Business and Trade, Nanjing Institute of Industry Technology, Nanjing 210046, P. R. China

Surface Review and Letters (SRL), 2019, vol. 26, issue 07, 1-9

Abstract: By combining the plasma ion implantation (PII) technology and double glow plasma surface metallurgy (DGPSM), a Fe–Al–Cr intermetallic functionally graded material was deposited on 1045 steel. The obtained Fe–Al–Cr intermetallic functionally graded material was around 11μm in thickness and was composed of a Cr-enriched layer (Cr-enriched Fe–Cr compounds), a Fe–Al–Cr-enriched layer (Fe2AlCr and Al8Cr5 compounds), and a Fe-enriched layer (Fe-enriched Fe–Cr solid solution). The interfacial contact between the Fe–Al–Cr intermetallic functionally graded material and the steel substrate is excellent due to the metallurgical bonding. The wear rate of the Fe–Al–Cr intermetallic functionally graded material was only around 25% of that of the 1045 steel substrate. Due to the different compound distributions in the Cr-enriched layer, Fe–Al–Cr-enriched layer, and Fe-enriched layer, the friction coefficients were different and their tribological behaviors were abrasive wear, oxidative wear and adhesive wear, respectively.

Keywords: Plasma ion implantation; double glow plasma surface metallurgy; Fe–Al–Cr; intermetallic functionally graded material; wear resistance (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1142/S0218625X18502219

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