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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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The various surface treated conditions of Fe-3.0%Ni-0.7%Cr-1.4%Mn-X steel such as as-received, ion nitriding, DLC coated, DLC coated after nitriding for 3 hrs and 6 hrs were investigated to evaluate the beneficial effect for plastic mold steel. Micro Vickers hardness tester was used to estimate nitriding depth from the hardness profile and to measure hardness on the surface. Elastic modulus and residual stress were measured by a nanoindentator. Scratch test and SP (small ball punch test) were utilized to assess the adhesive strength of DLC coating. The depth of nitriding layer was measured as 50 μm for the condition of 3 hrs nitriding and 90 μm for that of 6 hrs nitriding. Hardness, elastic modulus, residual stress of DLC coating were 20.37 GPa, 162.78 GPa and ?1456 MPa respectively. Residual stress on the surface of DLC coating after nitriding could increase to ?3914 MPa by introducing nitriding before DLC coating. During the ‘Ball-On-Disc’ test γ" particles pulled out from the surface of nitrized layer tend to enhance abrasive wear mode since the fraction of γ" (Fe4N) in ion-nitrized layer is known to increases with nitriding time. Thus the specific wear rate of the nitriding layer increased. Comparing with nitriding the specific wear rate in work piece disc as well as ball decreased prominently in DLC coating due to the remarkable reduction in friction coefficient.
목차
Abstract
1. 서론
2. 실험 방법
3. 결과 및 고찰
4. 결론
References
참고문헌 (27)
참고문헌 신청
1. [학술지(정기간행물)] - J. Y. Yu / 2010 / 2010 Roadmap for Integrationg Technologies in Small and Medium Businessanalysis of Current Situation in Strategy Field / KISTI 3 (2010) : 463 ~
2. [학술지(정기간행물)] - I. Martnez-Mateo / 2011 / / Wear 271 : 2512 ~
3. [학술지(정기간행물)] - S. J. Kim / 1993 / Development of Stainless Steel for Plastic Dies / KIMM 3 : ~
4. [학술지(정기간행물)] - P. Cavaliere / 2009 / / Comput. Mater. Sci 46 : 26 ~
5. [학술지(정기간행물)] - J. Wang / 2012 / / Surf. Coatings Technol 206 : 3399 ~
2. [학술지(정기간행물)] - I. Martnez-Mateo / 2011 / / Wear 271 : 2512 ~
3. [학술지(정기간행물)] - S. J. Kim / 1993 / Development of Stainless Steel for Plastic Dies / KIMM 3 : ~
4. [학술지(정기간행물)] - P. Cavaliere / 2009 / / Comput. Mater. Sci 46 : 26 ~
5. [학술지(정기간행물)] - J. Wang / 2012 / / Surf. Coatings Technol 206 : 3399 ~
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UCI(KEPA) : I410-ECN-0101-2015-580-001280928