Dry-sliding wear of the 316L/h-BN composites produced under crack ammonia atmosphere

Authors

  • E Chusong Department of Mechanical engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok, 10520, Thailand Particulate Materials Processing Technology (PMPT), Metal And Manufacturing Process Research Group, National Metal and Materials Technology Center, 114 Paholyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120 Thailand
  • P Kansuwan Department of Mechanical engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok, 10520, Thailand
  • N Ohtake Department of Mechanical engineering, Major in Engineering Sciences and Design, Tokyo Institute of Technology, Tokyo, 152-8550, Japan
  • P Wila 114 Thailand Science Park, Phahonyothin Rd. khlong Nueng, khlong Luang, Pathum Tani 12120, Thailand
  • N Tosangthum 114 Thailand Science Park, Phahonyothin Rd. khlong Nueng, khlong Luang, Pathum Tani 12120, Thailand
  • R Tongsri 114 Thailand Science Park, Phahonyothin Rd. khlong Nueng, khlong Luang, Pathum Tani 12120, Thailand

Abstract

Wear is one of different problems in mechanical failures of moving components. When a component encounters friction force on its surface, crack initiation tends to occur and wear follows crack propagation. Thus, the moving parts of automobiles should have proper wear resistance for long-time services, in addition to having high strength and hardness for heavy load operation. A self-lubricating material with compromised tribological and mechanical properties is important for some moving components. In this work, self-lubricating composites, metal matrix composites embedded with a solid lubricant, made from 316L stainless steel powder mixed with different hexagonal boron nitride (h-BN) contents of 10%, 15% and 20% by volume. The mixed powders were compacted into green parts (according with MPIF Standard 42) with density of 6.5 g·cm-3. Then, the green parts were sintered at 1100, 1150, 1200, 1250 and 1300°C under cracked ammonia (75% H2+25% N2) atmosphere for 60 min. The experimental results revealed that increases of hardness and strength sintered 316L matrix by reduction of pore amount and size were due to the increase of sintering temperature. However, the increase of h-BN content resulted in increase of pore amount and size. Additions of h-BN content up to 20 vol. % reduced friction coefficient of the sintered composites. At sintering temperatures of equal to and higher than 1200°C, h-BN did not react with 316L stainless steel powders to form intergranular boride phase. The sintered composites produced under the maximum experimental sintering temperature of 1300°C showed low specific wear rate.

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Author Biographies

E Chusong, Department of Mechanical engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok, 10520, Thailand Particulate Materials Processing Technology (PMPT), Metal And Manufacturing Process Research Group, National Metal and Materials Technology Center, 114 Paholyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120 Thailand

Department of Mechanical engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang (KMITL)

Thailand Advanced Institute of Science and Technology (TAIST) Program

P Kansuwan, Department of Mechanical engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok, 10520, Thailand

Department of Mechanical engineering, Faculty of Engineering, King Mongkut’s Institute of Technology Ladkrabang (KMITL)

N Ohtake, Department of Mechanical engineering, Major in Engineering Sciences and Design, Tokyo Institute of Technology, Tokyo, 152-8550, Japan

Department of Mechanical engineering, Major in Engineering Sciences and Design, Tokyo Institute of Technology, Tokyo

P Wila, 114 Thailand Science Park, Phahonyothin Rd. khlong Nueng, khlong Luang, Pathum Tani 12120, Thailand

Particulate Materials Processing Technology (PMPT), Metal And Manufacturing Process Research Group, National Metal and Materials Technology Center

N Tosangthum, 114 Thailand Science Park, Phahonyothin Rd. khlong Nueng, khlong Luang, Pathum Tani 12120, Thailand

Particulate Materials Processing Technology (PMPT), Metal And Manufacturing Process Research Group, National Metal and Materials Technology Center

R Tongsri, 114 Thailand Science Park, Phahonyothin Rd. khlong Nueng, khlong Luang, Pathum Tani 12120, Thailand

Particulate Materials Processing Technology (PMPT), Metal And Manufacturing Process Research Group, National Metal and Materials Technology Center

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Published

2020-06-30

How to Cite

[1]
E. Chusong, P. Kansuwan, N. Ohtake, P. Wila, N. Tosangthum, and R. Tongsri, “Dry-sliding wear of the 316L/h-BN composites produced under crack ammonia atmosphere”, J. Met. Mater. Miner., vol. 30, no. 2, Jun. 2020.

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Original Research Articles

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