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J. Ocean Eng. Technol. 2010;24(6):71-75.    

Study on Wear Properties of GCV Materials with DLC Coating
Lee Soo-Chul,Kim Nam-Seok,Nam Ki-Woo,Ahn Seok-Hwan,Kim Hyun-Soo
Graduate School Pukyong National University,Graduate School Pukyong National University,Materials Science and Engineering Pukyong National University,Bukyong Education Center for Vehicle Safety Component Technology Pukyong National University,R&D Cent
GCV소재의 DLC 코팅 마모특성에 관한 연구
이수철,김남석,남기우,안석환,김현수
부경대학교 대학원,부경대학교 대학원,부경대학교 신소재공학부,부경대학교 수송기계안전편의융합부품소재인재양성센터,삼호정밀 기술연구소
© 2010 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Graphite compacted vermicular (GCV) material, Diamond-like carbon (DLC) coating, Wear properties
핵심용어: GCV소재, DLC 코팅, 마모특성
Abstract
Although Graphite Compacted Vermicular (GCV) was first observed in 1948, the narrow range for stable foundry production precluded the high volume application of GCV to complex components such as cylinder blocks and heads until advanced process control technologies became available. This, in turn, had to await the advent of modern measurement electronics and computer processors. Following the development of foundry techniques and manufacturing solutions, primarily initiated in Europe during the 1990s, the first series production of GCV cylinder blocks began during 1999. Today, more than 40,000 GCV cylinder blocks are produced each month for OEMs, including Audi, DAF, Ford, Hundai, MAN, Mercedes, PSA, Volkswagen, and Volvo. Given that new engine programs are typically intended to support three to four vehicle generations, the chosen engine materials must satisfy current design criteria and also provide the potential for future performance upgrades without changing the overall block architecture. With at least a 75% increase in the ultimate tensile strength, a 40% increase in the elastic modulus, and approximately double the fatigue strength of either iron or aluminum, GCV is ideally suited to meet current and future of engine design and performance requirements.


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