한국소성가공학회:학술대회논문집 (Proceedings of the Korean Society for Technology of Plasticity Conference)
- 한국소성가공학회 2005년도 춘계학술대회 논문집
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- Pages.471-474
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- 2005
나노/마이크로 경도 측정에 의한 레오캐스트 A356 합금의 시효경화특성 평가
Evaluation of Age-Hardening Characteristics of Rheo-Cast A356 Alloy by Nano/Micro Hardness Measurement
- 발행 : 2005.05.01
초록
This study investigates the nano/microstructure, the aging response, and the mechanical/tribological properties of the eutectic regions in rheoformed A356 alloy-T5 parts using nano/micro-indentation and mechanical scratching, combined with optical microscopy and atomic force microscope (AFM). Most eutectic Si crystals in the A356 alloy showed a modified morphology as fine-fibers. The loading curve for the eutectic region was more irregular than that of the primary Al region due to the presence of various particles of varying strength. The aging responses of the eutectic regions in the rheoformed A356 alloys aged at