Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2006.05a
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- Pages.322-325
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- 2006
Investigation on Age-hardening characteristic of thixo and rheocast by using Nano/Micro-probe Technology
나노/마이크로 프로브 기술을 통한 틱소/레오 캐스트의 시효경화 특성 조사
Abstract
The nano/microstructure and mechanical properties of the eutectic regions in thixo and rheo cast A356 alloy parts were investigated 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, however Si particles of network in eutectic region was formed quickly with aging time increase in thixo-cast. The aging responses of the eutectic regions in both the thixo and rheo cast A356 alloys aged at
Keywords
- A356 Alloy;
- Thixo cast;
- Rheo cast;
- T5 Heat treatment;
- Continuous stiffness measurement (CSM);
- Victors hardness test;
- Atomic force microscopy (AFM)