Effect Of casting porosity on compressive mechanical property of as-quenched Al-Cu-Mn alloy

Gang Wang, Ke Ren1; Yiming Rong, Wenguang Wang2

10.7449/2017/MST_2017_141_147

2017

Materials Science and Technology Conference and Exhibition 2017, MS and T 2017

1

141-147

Pittsburgh, PA, United states

Association for Iron and Steel Technology, AISTECH

The porosity, as one of common defects in casting parts, has a significant effect on the mechanical properties of as-quenched Al-Cu-Mn alloy. In this paper, the low-pressure casting and quenching processes were conducted to prepare Al-Cu-Mn alloy specimens with various porosity values. The porosity distributions of the sample blocks were characterized by using high precision densimeter. The relation between density and compressive properties was investigated by isothermal compression test. The experimental results showed that when density increased by 1.19%, yield strength (ϵp = 0.10) of quenched samples increased by 19.6%, while yield strength (ϵp = 0.30) of quenched samples increased by 20.61%. Finally, the Voce behavior hypothesis and the linear hypothesis between yield strength and density were proposed, by analyzing the relation between the density and compressive properties.
Copyright © (2017) by Materials Science & Technology (MS&T).

其他

EI

20180504695852

Aluminum alloys ; Behavioral research ; Compression testing ; Copper alloys ; Density (specific gravity) ; Mechanical properties ; Porosity ; Ternary alloys ; Yield stress

Aluminum Alloys:541.2 ; Manganese and Alloys:543.2 ; Copper Alloys:544.2 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951 ; Social Sciences:971

EV Compendex

1.Department of Mechanical Engineering, State Key Laboratory of Tribology and Institute of Manufacturing Engineering, Tsinghua University, Beijing; 100084, China
2.Mechanical and Energy Engineering Department, Southern University of Science and Technology, Shenzhen; 518055, China

Gang Wang, Ke Ren,Yiming Rong, Wenguang Wang. Effect Of casting porosity on compressive mechanical property of as-quenched Al-Cu-Mn alloy[C]:Association for Iron and Steel Technology, AISTECH,2017:141-147.