Effects of Spinning on Microstructure and Mechanical Properties of A356 Alloy

Wen Min Zhao; Xiao Fei Jia; Zhi Feng Wang; Zhi Gao Yin; Guo Yuan Xiong

doi:10.4028/www.scientific.net/AMR.189-193.4014

Paper Titles

Interrelation between Microstructure and Mechanical Properties of Heavy Section Ductile Iron Casting
p.3993

Effects of Superposed Field on Solidification Microstructure of Al-7wt%Si Alloy
p.3999

Smelting Technology in Electric Furnace for Thick and Large Gray Iron with High Strength
p.4003

Numerical Simulation and Technology Optimization of Rear Oil Seal Bearing Die Castings Based on ProCAST
p.4008

Effects of Spinning on Microstructure and Mechanical Properties of A356 Alloy
p.4014

Effect of Magnetostatic Field on Microstructure of 5005 Aluminum Alloy Sheet by Roll-Casting
p.4018

Effects of Submerged Heater on the Vertical Bridgman Crystal Growth
p.4022

Experimental Modal Analysis in Casting Production Applications
p.4028

Study on Unidirectional Solidification of Slab Ingot for Special Heavy Plate
p.4033

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Effects of Spinning on Microstructure and...

Effects of Spinning on Microstructure and Mechanical Properties of A356 Alloy

Abstract:

The tube-shaped parts of A356 alloy were deformed from 0% to 83% by spinning process. The microstructure and mechanical properties of A356 alloy were discussed. The results showed that as the wall thickness reduction increases, the dendrite cells of cast alloy are lengthened gradually and the average Secondary Dendrite Arm Spacing (SDAS) is reduced from 37.2μm to 23μm and eutectic silicon particles are distributed orderly along the spinning direction. The coarse acicular β-Al5FeSi is broken into many sections, and its length is reduced from 37.5μm to 12.5μm in the cross-section. The tensile strength and elongation exhibit a strong dependence upon the variation in wall thickness, with a parabolic relationship. The tensile fractured surface of parts with deformation ratio above 35% exhibits many equiaxial dimples, with intergranular ductile fracture mode.