Comparative Studies on Wear Behaviour of Sintered 316L Stainless Steels Loaded with h-BN and MoS2

S. Mahathanabodee; Tippaban Palathai; S. Raadnui; Ruangdaj Tongsri; Narongrit Sombatsompop

doi:10.4028/www.scientific.net/AMR.747.307

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 747Comparative Studies on Wear Behaviour of Sintered...

Comparative Studies on Wear Behaviour of Sintered 316L Stainless Steels Loaded with h-BN and MoS₂

Abstract:

Mechanical properties and wear behavior of stainless steel embedded with different solid lubricants were investigated. Hexagonal boron nitride (h-BN) and molybdenum disulfide (MoS₂)-embedded 316L stainless steels (SS316L/h-BN and SS316L/MoS₂) were prepared by powder metallurgy method. Various h-BN and MoS₂ contents (10, 15 and 20 vol%) were mixed with 316L stainless steel powders and then sintered at 1200°C in H₂ atmosphere for 60 min. The experimental results showed that small boride phase and h-BN powder occupied the pores in the microstructure of SS316L/h-BN composite whereas the MoS₂ second phase occupied the pores of the sintered 316L matrix in the microstructure of SS316L/MoS₂ composite. The addition of h-BN decreased the sintered density and hardness whereas that of MoS₂ gave the opposite effect. Dry sliding wear behavior of composites was investigated by using pin-on-disc test rig at the sliding speeds of 0.1 and 0.2 m/s and the applied load of 3 N. The results showed that the MoS₂ composites had higher wear resistance than the h-BN composite but the h-BN composite yielded a better friction reduction.

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Periodical:

Advanced Materials Research (Volume 747)

Pages:

307-310

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.747.307

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Online since:

August 2013

Authors:

S. Mahathanabodee, Tippaban Palathai, S. Raadnui, Ruangdaj Tongsri, Narongrit Sombatsompop

Keywords:

Hexagonal Boron Nitride (HBN), Molybdenum Disulfide (MoS₂), Powder metallurgy, Sliding Wear, Stainless Steel Composite

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