Browse > Article

Effects of Plasma Nitriding on the Surface Characteristics of Tool Steels  

이호종 (순천대학교 금속공학과)
최한철 (조선대학교 치과대학 치과재료학교실)
Publication Information
Journal of the Korean institute of surface engineering / v.36, no.2, 2003 , pp. 206-213 More about this Journal
Abstract
Effects of plasma nitriding on the surface characteristics of tool steels have been investigated using wear tester, micro-hardness tester and scanning electron microscope (SEM) Commercial SKD 11 and SM45 alloy were used as specimens and were plasma nitrided using a plasma nitriding equipment for 5 hr and 10hr at $500^{\circ}C$. Microstructure and phase analysis were performed using SEM and XRD. It was found that plasma nitriding for lour at $500^{\circ}C$, compared with plasma nitriding for 10hr at $500^{\circ}C$, had a thick nitrided layer and produced a layer with good wear resistance and hardness as nitriding time increased. SKD11 alloy showed that wear resistance and hardness decreased, whereas surface roughness increased, compared with SM45 alloy.
Keywords
Plasma nitriding; Surface dnaracteristics; Wear resistance; Hardness;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Jones, F. D, Die Design and Die Making Prac-tice, Mech. Pub. Co, (1952) 23
2 C. K. Jones, S. W. Matin, D. J. Sturges, M.Hu-dis, Heat treatment, Metal Soc., London,(1975) 71
3 L. S. Darken, R. M. Fisher, Decomposition of Austenite by Diffusional Processes, by per-mission of the Metallurgical Society of AIME
4 Z. L. Zhang, T. Bell, Surface Engineemg, 1(1985) 131   DOI
5 U. B. Byon, G. H. Lee, K. S. Nam, C. K. Won, J. K. Inst. Met. Mat., 30 (1992) 375
6 A. S. Korhone and E. H. Sirvio, Thin SolidFilms, 96 (1982) 103   DOI   ScienceOn
7 JJ. Egan, U. S. Patent 1837256, (1931)
8 J. Kobel, Die Nitroschich tdildung bei der Gli-mmen tladung, For schungr-bericht des Lo-ndas NRW Nr1555, Westdeuscher Verag, Koln/opladen, (1965)
9 Gas Nitriding, Metal Hand Book, 8th Ed.,ASM, Metal Park, OH, 2 (1964) 149
10 R. Hugon, G. Henrion, M. Fabry, Surface andCoating Technology, 59 (1993)82   DOI   ScienceOn
11 H. C. Choe, K. Y. Hwang, K. H. Kim, J. JapanInst. Metals, 64 (2000) 79
12 M. Ohhng, The materials science of ThinFilms, 110, Academic press INC., America,San diago, (1992)
13 A. Maclahniak, T. Karpinsk, Ind. Heat., April(1980) 42