| 플라즈마 전해 산화 코팅에 있어서 알루미늄 합금 모재 성분의 물리적, 결정학적 영향 I. PEO 층의 물성 |
| 김배연, 이득용1, 김용남2, 전민석2, 송준광2, 김성엽3, 김광엽3 |
인천대학교 신소재공학과
1대림대학교 재료정보학과
2한국산업기술시험원 재료평가센터 |
| Effect of Al Alloy Composition on Physical and Crystallographical Properties of Plasma Electrolytic Oxidized Coatings I. Physical Properties of PEO Layer |
| Bae-Yeon Kim, Deuk-Yong Lee1, Yong-Nam Kim2, Min-Seok Jeon2, Jun-Kwang Song2, Sung-Youp Kim3, Kwang-Youp Kim3 |
Department of Advanced Materials Engineering, University of Incheon
1Department of Materials Engineering, Daelim University College
2Material Testing Center, Korea Testing Laboratory
3MST Technology |
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| ABSTRACT |
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Physical properties of Plasma electrolytic oxidized 8 different types of Al alloys, A-1100, A-2024, A-5052, A-6061, A-6063, A-7075, ACD-7B and ACD-12 were investigated. The electrolyte for PEO was $Na_2SiO_3$ solutions with NaOH and some alkali earthen metal salts. Porous layer near the surface of PEO coating was not found, and surface roughness Ra50 was below 2.5 ${mu}m$. Surface roughness was affected by growth rate of plasma electrolytic oxidized layer, not by Si content in Al alloy. |
| Key words:
PEO, Coating, Crystal structure, Physical properties |
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