Effect of aging treatment on microstructure, mechanical and corrosion properties of 7055 aluminum alloy prepared using powder by-product

2021 ◽  
pp. 141606
Author(s):  
Tao Wang ◽  
Lun Yang ◽  
Zhaofeng Tang ◽  
Chao Liu ◽  
Yunzhu Ma ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Aging Treatment ◽  
Corrosion Properties ◽  
Mechanical And Corrosion Properties ◽  
7055 Aluminum Alloy

Microstructure and Hardness of 7055 Aluminum Alloy Processed by Circular Cryogenic-Aging Treatment

2013 ◽  
Vol 575-576 ◽  
pp. 374-377
Author(s):  
Hong Ming Wang ◽  
Guirong Li ◽  
Yun Cai ◽  
Yu Tao Zhao ◽  
Jun Jie Wang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Aluminum Alloy ◽  
Dislocation Density ◽  
Aging Treatment ◽  
Hardness Test ◽  
Micro Hardness ◽  
Cycle Index ◽  
7055 Aluminum Alloy ◽  
Main Components ◽  
Test Result

7055 aluminum alloy was processed by circular cryogenic-aging treatments for four times. Some characters such as precipitates, dislocation density, crystal structure and micro hardness were studied in detail. It is showed that the sizes of precipitates are decreased from several hundred nanometers to 100nm with the increase of cycle index. The main components are AlZn or AlZnMg phases. The hardness test result illustrates that the micro hardness arrives at 232HV after circular cryogenic-aging treatment for twice. The corresponding precipitates exhibit high density and complex sizes. The sizes are in the range of 50-200nm.

Research on Mechanical and Corrosion Properties of Ti-Microalloyed Biomedical Cobalt-Based Alloy

2016 ◽  
Vol 852 ◽  
pp. 1168-1174
Author(s):  
Ya Ting Cao ◽  
Feng Wang ◽  
Qing Xuan Ran ◽  
Yu Lai Xu ◽  
Jun Li ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Phase Transformation ◽  
Aging Treatment ◽  
Physiological Saline ◽  
Corrosion Properties ◽  
Solution Treated ◽  
Cast Specimen ◽  
Mechanical And Corrosion Properties ◽  
Stable Passive

0.15 wt. % Ti-microalloyed Co-28.5Cr-5.9Mo-0.27C alloy has been developed by examining the effect of solution and aging treatment on microstructure, mechanical and corrosion properties. The results showed that elongation of the cast specimen were lower than 8%, while reached 18% after solution-treated at 1220 °C for 4 h. Phase transformation from austenite to martensite was observed after aging at 800°C and the amount of transformed martensite increased with aging time. Polarization tests of the samples after solution and aging treatment were carried out in physiological saline at 37 °C, which showed a stable passive film formed on the surface and no apparent pitting phenomenon occurred on the specimens, which indicated that heat treatment has not significant influence on the corrosion resistance of Co-Cr-Mo-0.27C-0.15Ti alloy.

Reasons for superior mechanical and corrosion properties of 2219 aluminum alloy electron beam welds

2005 ◽  
Vol 55 (4-5) ◽  
pp. 345-354 ◽  
Author(s):  
S.R. Koteswara Rao ◽  
G. Madhusudhan Reddy ◽  
K. Srinivasa Rao ◽  
M. Kamaraj ◽  
K. Prasad Rao
Keyword(s):  
Aluminum Alloy ◽  
Electron Beam ◽  
Corrosion Properties ◽  
2219 Aluminum Alloy ◽  
Mechanical And Corrosion Properties

INFLUENCE OF AGING ON THE HARDENABILITY OF 7055 ALUMINUM ALLOY THICK PLATE

2012 ◽  
Vol 48 (3) ◽  
pp. 343 ◽  
Author(s):  
Shengdan LIU ◽  
Chengbo LI ◽  
Yunlai DENG ◽  
Xinming ZHANG
Keyword(s):  
Aluminum Alloy ◽  
Thick Plate ◽  
7055 Aluminum Alloy
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