Microstructure and properties of al-Cu-Mn alloy with Y, Zr and (Y+Zr)

doi:10.4028/www.scientific.net/MSF.898.334

CORC > 兰州理工大学 > 兰州理工大学

	Microstructure and properties of al-Cu-Mn alloy with Y, Zr and (Y+Zr)
	Guo, Ting Biao 1,2; Zhang, Feng 1; Li, Qi 1; Wang, Chen 1; Ding, Wan Wu 1,2
	2017
会议日期	October 20, 2016 - October 24, 2016
会议地点	Qingdao, China
关键词	Aluminum alloys Copper alloys Ductile fracture Hardness Heat treatment Mechanical properties Microalloying Microstructure Tensile strength Ternary alloys Zircaloy Addition method Comprehensive properties Cu-Mn alloys Microstructure and properties Microstructures and properties Refined grain Strengthening methods T6 heat treatment
卷号	898 MSF
DOI	10.4028/www.scientific.net/MSF.898.334
页码	334-344
英文摘要	As an important strengthening method, micro alloying has been widely used to improve the comprehensive properties of aluminum alloy. The research on microstructures and properties of Al-Cu-Mn alloy with Y, Zr and (Y, Zr) was conducted through OM, SEM and EDS methods. Three addition methods were comprehensively compared and the important significance of elements and relevant precipitates distribution to performance improvement was explored. The results show that adding different contents of Y, Zr and (Y, Zr) has great influence on microstructure and properties of Al-Cu-Mn alloy. Fluidity of the (Y+Zr)-containing alloy was significantly higher than that of the Zr or Y-containing one. The hardness and elongation of the Zr-containing alloy were also better than the other two groups, while with the increase of addition amounts from 0 to 0.2 %, it showed a decreasing trend. When the content was 0.3%, the grains of the Y and (Y+Zr)-containing alloys were well refined and the tensile strength and hardness increased as well, and Y-containing alloy presented the best tensile strength. After T6 heat treatment, the mechanical properties of the Y and (Zr+Y)-containing alloys were enhanced due to the dispersed θ phase and completely refined grains. And both ductile fracture ratios increased. When the content was more than 0.3%, the reticular θ phase formed that was extremely unfavorable to properties of the studied alloy. It appears that the addition of Y and Zr has an important influence on improving the properties of the Al-Cu-Mn alloy. And Y, Zr and (Y+Zr) dosages should be adjusted reasonably in the range of 0.1-0.3% to optimize and improve the alloy performance. © 2017 Trans Tech Publications, Switzerland.
会议录	Materials Science Forum
会议录出版者	Trans Tech Publications Ltd
语种	英语
ISSN号	02555476
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/118100]
专题	兰州理工大学
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lan Zhou; 730050, China; 2.Key Laboratory of nonferrous alloys and processing of Ministry of Education, Lan Zhou; 730050, China
推荐引用方式 GB/T 7714	Guo, Ting Biao,Zhang, Feng,Li, Qi,et al. Microstructure and properties of al-Cu-Mn alloy with Y, Zr and (Y+Zr)[C]. 见:. Qingdao, China. October 20, 2016 - October 24, 2016.