Effect of Quenching Water Temperature on Microstructure and Mechanical Property of 2219 Aluminum Alloy Forging Ring

被引：0
作者：
Ma Y. [1 ]
Chen S. [2 ,3 ]
Wang X. [2 ,3 ]
Chen K. [2 ,3 ]
机构：
[1] Beijing Institute of Astronautical Systems Engineering, Beijing
[2] Light Alloy Research Institute, Central South University, Changsha
[3] Collaborative Innovation Center of Advanced Nonferrous Structural Materials and Manufacturing, Central South University, Changsha
来源：
Chen, Songyi (sychen08@csu.edu.cn) | 1600年 / Hunan University卷 / 47期
基金：
中国国家自然科学基金;
关键词：
Aluminum alloy; Mechanical properties; Microstructure; Quenching water temperature; Ring forging;
D O I：
10.16339/j.cnki.hdxbzkb.2020.08.013
中图分类号：
学科分类号：
摘要：
The effects of quenching water temperature(20 ~ 80℃) on the microstructure and mechanical property of 2219 Al alloy forging ring were studied by room temperature tensile test, optical microscope(OM), scanning electron microscopy(SEM) and transmission electron microscopy(TEM). The results showed that the tensile strength and yield strength first increased and then decreased with the increase of quenching temperature. The elongation anisotropy index of 2219 Al alloy ring forging was significantly increased when the quenching water temperature exceeds 60℃ due to the formation of coarse grain boundary precipitates. The high strength and elongation of 2219 Al alloy ring forging was obtained under the quenching water temperature at 40℃. The axial tensile strength, yield strength and elongation were 418 MPa, 300 MPa and 9.3%, respectively. The radial tensile strength, yield strength and elongation were 420 MPa, 300 MPa and 9.8%, respectively. The tangential tensile strength, yield strength and elongation were 447 MPa, 329 MPa and 12.6%, respectively. © 2020, Editorial Department of Journal of Hunan University. All right reserved.
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页码：118 / 123
页数：5
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