Tensile Specimen’s Permanent Die Designing and Its Al-Mg Alloy Specimen’s Tensile Test

Abstract

Abstract. Based on the facts that there are many kinds of metallic tensile specimens with different dimensions, a set of rectangular cross-section and round cross-section tensile specimens are designed according to China national standard GB228-2002 which is called metallic materials' tensile testing at ambient temperature to meet the needs of routine materials researching and testing in factory. According to the designing specimen, a complete set of permanent die was designed and manufactured. Then, Al-Mg alloy was chosen to do the casting processing experiment, and the tensile specimen was obtained and tensile test was finished. It showed that the designing specimen and permanent die met the requirements of tensile test. The round specimen is stronger than the rectangular one and the particles diameter of the studied Al-Mg alloy is from 20ȝm to 50ȝm.

Effects of RE Micro-Alloying Additions on the Corrosion Behavior of an Al-Mg-Si Alloy

“…The researchers are trying to improve the strength and corrosion resistance of aluminum alloy by cold deformation, heat treatment or adding trace elements [3][4]. Adding extra Zn, Ni, Cu or rare earth has been proved to be an effective method in order to attain a significant mechanical properties effect in Al-Mg-Si alloy.…”