Tribological effects of yttrium and nitrogen ion implantation on a precipitation hardening stainless steel

Carrasco, F.; Arizaga, A.; Garcı́a, Agustı́n Costa; Oñate, J.I.

doi:10.1016/0257-8972(94)90015-9

Cited by 17 publications

(1 citation statement)

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“…But for some applications it is necessary to further improve the steel surface properties, for instance, improvement in surface hardness is needed for ball bearings chains, valves and gears and betterment in corrosion resistance is needed for surgical and dental instruments, pressure vessels, steam and gas turbines. In order to broader applications of martensitic precipitation hardening stainless steel, the development of advanced surface engineering technologies were applied to tackle the problem [1]. Low temperature plasma treatments can be successfully used to produce nitrogen and/or carbon supersaturated expanded austenite phase on the surfaces of various austenitic stainless steels, and then achieves combined improvements in surface hardness, wear resistance and corrosion resistance due to the superior properties of the "S-phase" [2].…”

Section: Introductionmentioning

confidence: 99%

Improvement of the Surface Properties of Low Temperature Plasma Nitrocarburized Martensitic Precipitation-Hardening Stainless Steel by Aging Treatment

Lee

2018

MSF

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Various aging treatments were conducted on AISI 630 martensitic precipitation hardening stainless steel in order to optimize aging condition. Aging treatment was carried out with Ar gas in the chamber at temperature of 380°C, 400°C and 430°C and times of 2, 4 and 8 h. After obtaining the optimized aging condition, several nitrocarburizing treatments were done with and without the aging treatment. Nitrocarburizing was performed on the samples at 400V with a gas mixture of H2, N2 and CH4 for 15 hrs at 4.0 Torr vacuum pressure. The aging condition was optimized as 400°C temperature for 4 h. Better results were found when the samples were experimented with aging + nitrocarburizing treatment. In this combined process, the corrosion resistance improved noticeably which is confirmed by potentiodynamic polarization test and by observing the surface of the samples after corrosion test. Moreover, the surface hardness increases up to 1300 HV0.05 approximately and α'N layer thickness increases up to 11 μm (approximately).

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Section: Introductionmentioning

confidence: 99%