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Fatigue crack growth properties of ceramic coated 1Cr-1Mo-0.25V steel
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 Title & Authors
Fatigue crack growth properties of ceramic coated 1Cr-1Mo-0.25V steel
Seo, Chang-Min; Kim, Gyeong-Ryeol;
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 Abstract
Fatigue tests were performed to investigate the effect of ceramic coatings as in TiN and TiCN on fatigue crack growth properties of ceramic coated 1Cr-1Mo-0.25V steel with different coating thickness in laboratory air conditions. The experimental results are described with respect to a Paris equation, da/dN=C(.DELTA.K) , where the crack growth rate of coated specimens provided as similar growth rate as that of the uncoated specimen regardless of coating thickness. Furthermore, it was observed that the type of coating layer had virtually no effect on crack growth rate in the full region of stress intensity factor range. And it was also appeared that the final crack length of TiCN coated specimens was short compared to that of TiN coated, and the substrate specimens, in which it was inferred due to lowering the toughness of coated material from high hardness of TiCN coating layer itself.
 Keywords
TiN Ceramic Coating;Fatigue Crack Growth Rate;Arc Ion Plating;AIP;Fractography;Stress Intensity Factor Range;
 Language
Korean
 Cited by
1.
고온 피로균열 성장거동 관찰을 위한 코팅기술의 응용,남승훈;김용일;서창민;김동석;

한국해양공학회지, 2002. vol.16. 2, pp.60-66
2.
고강도 강선의 인장 및 회전굽힘 피로특성,우병철;김상수;김병걸;서창민;

대한기계학회논문집A, 2001. vol.25. 1, pp.161-167 crossref(new window)
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