Effects of pouring temperature on microstructure and mechanical properties of the A356 aluminum alloy diecastings

doi:10.1590/1980-5373-MR-2019-0676

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Effects of pouring temperature on microstructure and mechanical properties of the A356 aluminum alloy diecastings
	Li, Ming 1,2; Li, Yuandong 3; Zhou, Hongwei 3
刊名	Materials Research
	2020
卷号	23 期号:1
关键词	Die casting Eutectics Grain size and shape Microstructure Pressure pouring Silicon Solidification Tensile strength A-356 aluminum alloy Average grain size Dendrite structures High pressure die casting Microstructure and mechanical properties Pouring temperatures Self-inoculation methods Strength and elongations
ISSN号	15161439
DOI	10.1590/1980-5373-MR-2019-0676
英文摘要	Diecastings of the A356 aluminum alloy were produced by rheo-diecasting (RDC) and High pressure die casting (HPDC), the microstructures of primary solidification, secondary solidification and eutectic Si of diecastings with different pouring temperature were explored and the mechanical properties of different parameters were tested. The result shows that the primary α-Al grains in RDC with self-inoculation method (SIM) are smaller and rounder than the dendrite structure in HPDC. During the RDC process, the amount of primary α-Al grains, average grain size and the lamellar spacing of the eutectic Si increase with the decrease of the melt treatment temperature. While the average grain size and the shape factor are gradually increasing with the increase of melt treatment temperature. As a result, RDC can significantly improve the mechanical properties of the A356 aluminum alloy compared with HPDC, the mechanical properties are optimal at 600°Cwith the tensile strength and elongation are 268.67MPa and 6.8%, respectively. © 2020 Universidade Federal de Sao Carlos. All rights reserved.
语种	英语
出版者	Universidade Federal de Sao Carlos
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115506]
专题	省部共建有色金属先进加工与再利用国家重点实验室兰州理工大学
作者单位	1.Hexi University, Zhangye; 734000, China; 2.Hexi University, Institute of Advanced Materials Forming Technology, Zhangye; 734000, China; 3.Lanzhou University of Technology, State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Li, Ming,Li, Yuandong,Zhou, Hongwei. Effects of pouring temperature on microstructure and mechanical properties of the A356 aluminum alloy diecastings[J]. Materials Research,2020,23(1).
APA	Li, Ming,Li, Yuandong,&Zhou, Hongwei.(2020).Effects of pouring temperature on microstructure and mechanical properties of the A356 aluminum alloy diecastings.Materials Research,23(1).
MLA	Li, Ming,et al."Effects of pouring temperature on microstructure and mechanical properties of the A356 aluminum alloy diecastings".Materials Research 23.1(2020).