Mechanisms and microstructures of2A97 Al-Lialloy under the hot forming with synchronous quenching process

doi:10.1002/jemt.23593

CORC > 金属研究所 > 中国科学院金属研究所

	Mechanisms and microstructures of2A97 Al-Lialloy under the hot forming with synchronous quenching process
	Zhang, Peng 3; Chen, Ming-He 3; Chen, Wei 2,3; Zhang, Shi-Hong 1; Xu, Yong 1
刊名	MICROSCOPY RESEARCH AND TECHNIQUE
	2020-09-29
页码	10
关键词	EBSD fracture hot forming mechanical property
ISSN号	1059-910X
DOI	10.1002/jemt.23593
通讯作者	Chen, Ming-He(meemhchen@nuaa.edu.cn)
英文摘要	Aluminum-lithium alloy is regarded as the most promising light material in the aircraft and aerospace industries. For the production of complex and high-precision parts, the hot forming with synchronous quenching (HFSQ) process has become an effective and attractive forming method. In order to achieve the performance and microstructure evolution of the 2A97 Al-Li alloy under the HFSQ process, the specimens were subjected to solution treatment at 520 degrees C and held at 90 min in the Gleeble 3,500 thermal simulator. Then the hot tensile test with simultaneous quenching was conducted directly at a temperature of 300-500 degrees C and a strain rate of 0.1-0.001 s(-1)with the same equipment. Through analyzing the macroscopic stress-strain curves and microscopic fractures, it was concluded that the optimal forming temperature was 450 degrees C with the strain rate being 0.1 s(-1)and its forming mechanism under the process was presented. To obtain the microstructure evolution of 2A97 Al-Li alloy under the HFSQ process, the material was subjected to constant strain tensile test with synchronous quenching and then treated with two-stage artificial aging 200 degrees C and 6 hr + 165 degrees C and 6 hr. The microstructure of the alloy was observed by means of electron backscattering diffraction (EBSD). And its evolution process and the influence of temperature, strain rate, and strain on the microstructure under the process were attained.
资助项目	National Natural Science Foundation of China[51175252]
WOS研究方向	Anatomy & Morphology ; Life Sciences & Biomedicine - Other Topics ; Microscopy
语种	英语
出版者	WILEY
WOS记录号	WOS:000573378100001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/140787]
专题	金属研究所_中国科学院金属研究所
通讯作者	Chen, Ming-He
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China 2.Chinalco Mat Applicat Res Inst Co Ltd, Suzhou Branch, Suzhou, Peoples R China 3.Nanjing Univ Aeronaut & Astronaut, Coll Mech & Elect Engn, Nanjing 210016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Peng,Chen, Ming-He,Chen, Wei,et al. Mechanisms and microstructures of2A97 Al-Lialloy under the hot forming with synchronous quenching process[J]. MICROSCOPY RESEARCH AND TECHNIQUE,2020:10.
APA	Zhang, Peng,Chen, Ming-He,Chen, Wei,Zhang, Shi-Hong,&Xu, Yong.(2020).Mechanisms and microstructures of2A97 Al-Lialloy under the hot forming with synchronous quenching process.MICROSCOPY RESEARCH AND TECHNIQUE,10.
MLA	Zhang, Peng,et al."Mechanisms and microstructures of2A97 Al-Lialloy under the hot forming with synchronous quenching process".MICROSCOPY RESEARCH AND TECHNIQUE (2020):10.