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

doi:10.1002/jemt.23593

IMR OpenIR

	Mechanisms and microstructures of2A97 Al-Lialloy under the hot forming with synchronous quenching process
	Zhang, Peng 1; Chen, Ming-He 1; Chen, Wei 1,2; Zhang, Shi-Hong 3; Xu, Yong 3
通讯作者	Chen, Ming-He(meemhchen@nuaa.edu.cn)
	2020-09-29
发表期刊	MICROSCOPY RESEARCH AND TECHNIQUE
ISSN	1059-910X
页码	10
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.
关键词	EBSD fracture hot forming mechanical property
资助者	National Natural Science Foundation of China
DOI	10.1002/jemt.23593
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51175252]
WOS研究方向	Anatomy & Morphology ; Life Sciences & Biomedicine - Other Topics ; Microscopy
WOS类目	Anatomy & Morphology ; Biology ; Microscopy
WOS记录号	WOS:000573378100001
出版者	WILEY
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/140788
专题	中国科学院金属研究所
通讯作者	Chen, Ming-He
作者单位	1.Nanjing Univ Aeronaut & Astronaut, Coll Mech & Elect Engn, Nanjing 210016, Peoples R China 2.Chinalco Mat Applicat Res Inst Co Ltd, Suzhou Branch, Suzhou, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang, 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.