| Title |
Mechanical and Corrosion Properties of Cast/Forged A356- T6 Alloy |
| Authors |
박노경(N. K. Park); 김상식(S. S. Kim); 권용남(Y. N. Kwon); 이영선(Y. S. Lee); 이정환(J. H. Lee) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
A356-T6 alloy; Cast/forging; Low-pressure casting; Mechanical properties; Corrosion properties |
| Abstract |
In the present study, the mechanical and corrosion properties of the cast/forging and the low-pressure cast A356-T6 alloy were evaluated. It was observed that the tensile elongation and impact energy value were substantially higher for the cast/forged A356-T6 compared to those of the low-pressure cast counterpart, while the tensile strength values were similar with each other. The resistance to high cycle fatigue was similar with each other but slightly higher for the low-pressure cast product. The observed trends in the mechanical properties with different processing routes appeared to be largely related to the shape and size of silicon particles in the eutectic phase, as well as the shape of primary a phase. The resistance to pitting corrosion in 3.5% NaCl solution was also higher for the cast/forged product compared to the low-pressure cast counterpart. The resistance to corrosion in 3.5% NaCl solution was slightly higher for the cast/forged A356-T6 product than the low-pressure cast counterpart. The corrosion behavior of A356-T6 with different processing routes was also believed to be related to the area fraction between Si particles and the matrix. (Received March 29, 2004) |