Effect of pouring temperature on interfacial microstructure and mechanical properties of A356/6082 bimetal by liquid-solid rolling

doi:10.19476/j.ysxb.1004.0609.2019.05.01

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

	Effect of pouring temperature on interfacial microstructure and mechanical properties of A356/6082 bimetal by liquid-solid rolling
	Dong, Peng-Yuan 2; Li, Yuan-Dong 1,2; Yang, Shi-Jie 2; Li, Jia-Ming 2; Cao, Chi 1,2; Zhou, Hong-Wei 1,2
刊名	Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals
	2019-05-01
卷号	29 期号:5 页码:887-895
关键词	Bimetals Laminated composites Liquids Mechanical properties Microhardness Microstructure Phase interfaces Rolling Tensile strength A-356 aluminum alloy Interface structures Interfacial microstructure Interfacial shear strength Liquid solids Metallurgical bonds Pouring temperatures Ultimate tensile strength
ISSN号	10040609
DOI	10.19476/j.ysxb.1004.0609.2019.05.01
英文摘要	A356/6082 laminated bimetal was fabricated by liquid-solid rolling composite technique. The effects of pouring temperature on interfacial microstructure and mechanical properties of A356/6082 bimetal were studied. The results indicate that when the pouring temperature is too high, the fine eutectic silicon accumulates at the interface owing to the strong chilling effect in the interface region, hindering the further diffusion of elements. When the pouring temperature is low, only a mechanical bond forms under rolling force in the transition region between the A356 aluminum alloy and 6082 aluminum alloy. In addition, the micro-hardness value of the transition region suddenly changes from 82.4 HV to 61.5 HV. When the pouring temperature is 660, the interfacial region of bimetal achieve the good metallurgical bond. The width of element diffusion is about 96 μm and the microstructure is uniform. Moreover, the interfacial shear strength of A356/6082 bimetal can reach up to 114.2 MPa. With the decrease of pouring temperature, the ultimate tensile strength of bimetal gradually increases. When the pouring temperature is 620, the ultimate tensile strength reaches up to 205 MPa, the fracture location occurs firstly in the side of A356aluminum alloy. © 2019, Science Press. All right reserved.
语种	中文
出版者	Central South University of Technology
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113876]
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温州泵阀工程研究院
作者单位	1.Key Laboratory of Non-ferrous Metal Alloys, Ministry of Education, Lanzhou University of Technology, Lanzhou; 730050, China 2.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Dong, Peng-Yuan,Li, Yuan-Dong,Yang, Shi-Jie,et al. Effect of pouring temperature on interfacial microstructure and mechanical properties of A356/6082 bimetal by liquid-solid rolling[J]. Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals,2019,29(5):887-895.
APA	Dong, Peng-Yuan,Li, Yuan-Dong,Yang, Shi-Jie,Li, Jia-Ming,Cao, Chi,&Zhou, Hong-Wei.(2019).Effect of pouring temperature on interfacial microstructure and mechanical properties of A356/6082 bimetal by liquid-solid rolling.Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals,29(5),887-895.
MLA	Dong, Peng-Yuan,et al."Effect of pouring temperature on interfacial microstructure and mechanical properties of A356/6082 bimetal by liquid-solid rolling".Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals 29.5(2019):887-895.