A study on microstructure evolution and corrosion resistance of cutting layer metal of 7055 aluminum alloy based on extreme environment

2018 ◽  
Vol 69 (10) ◽  
pp. 1389-1397 ◽  
Author(s):  
Ping Zhang ◽  
Youqiang Wang ◽  
Weihui Li ◽  
Qing Wang ◽  
Yuanyuan Li
Keyword(s):  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Microstructure Evolution ◽  
Extreme Environment ◽  
7055 Aluminum Alloy

Static recrystallization kinetics and microstructure evolution of 7055 aluminum alloy

2019 ◽  
Vol 116 (1) ◽  
pp. 120
Author(s):  
Tao Zhang ◽  
Lei Li ◽  
Shihong Lu ◽  
Zhengfang Li ◽  
Peng Chen ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Flow Stress ◽  
Microstructure Evolution ◽  
Static Recrystallization ◽  
Large Strain ◽  
Processing Parameters ◽  
Temperature Sensitive ◽  
Sensitive Material ◽  
Interval Time ◽  
7055 Aluminum Alloy

In order to acquire flow characteristics in multi-pass hot plastic deformation and the optimized processing parameters for 7055 aluminum alloy, the double-pass hot compressive flow stress behavior was studied at the temperatures from 300 to 420 °C, the strain from 0.2 to 0.4 and the pass interval time from 10 to 100s on Gleeble-3180 thermo-simulation machine. The static recrystallization (SRX) kinetics and grain size model of 7055 aluminum alloy were acquired by regression analysis. The metallographic tests were conducted and the effects of pass interval time, temperature and strain on microstructure evolution of SRX were analyzed. The results show that 7055 aluminum alloy is temperature sensitive material and the yield flow stress decreases with ascending temperature and pass interval time. Large strain, high temperature and long pass interval time are beneficial to larger SRX fraction and grain refinement. The investigation of flow characteristic and microstructure evolution can be a guidance to acquire optimized processing parameters for multi-pass hot deformation of 7055 aluminum alloy.

Flow behavior and microstructure evolution of 7055 aluminum alloy impacted at high strain rates

2016 ◽  
Vol 677 ◽  
pp. 203-210 ◽  
Author(s):  
Shengdan Liu ◽  
Shaoling Wang ◽  
Lingying Ye ◽  
Yunlai Deng ◽  
Xinming Zhang
Keyword(s):  
Aluminum Alloy ◽  
Microstructure Evolution ◽  
High Strain ◽  
Flow Behavior ◽  
Strain Rates ◽  
High Strain Rates ◽  
7055 Aluminum Alloy

Dynamic recrystallization kinetics and microstructure evolution of 7055 aluminum alloy during hot compression

2019 ◽  
Vol 116 (6) ◽  
pp. 605
Author(s):  
Tao Zhang ◽  
Huapu Sha ◽  
Lei Li ◽  
Shihong Lu ◽  
Hai Gong
Keyword(s):  
Aluminum Alloy ◽  
High Temperature ◽  
Dynamic Recrystallization ◽  
Strain Rate ◽  
Grain Refinement ◽  
Microstructure Evolution ◽  
Large Strain ◽  
Small Strain ◽  
Small Strain Rate ◽  
7055 Aluminum Alloy

7055 aluminum alloy is widely used in manufacture of key components in fields of aerospace. Hot forming is the vital process for manufacture of components. Dynamic recrystallization (DRX) plays a significant role in grain refinement. Hot compressions and metallographic tests are conducted. Equations of DRX kinetics are fitted by least square method and finite element models (FEM) coupled with DRX kinetics equations are established to study the effects of forming parameters on microstructure evolution. The results show that true stress increases with ascending strain rate and decreases with ascending temperature. Large strain, small strain rate and high temperature are beneficial to sufficient DRX fraction and grain refinement. Deformation energy and thermally activated motion of atoms and molecules resulting from large strain and high temperature contribute to dynamic nucleation; meanwhile, small strain rate provides sufficient time for growth of recrystallized grains. The FEM results agree with experiments.

ALCAN B33S

Alloy Digest ◽  
1967 ◽  
Vol 16 (12) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Heat Treating ◽  
Corrosion Resistant ◽  
Aluminum Company

Abstract Alcan B33S is an aluminum alloy recommended for architectural shapes requiring hard, corrosion resistant, colored finishes. It contains enough magnesium to render it heat treatable. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Al-170. Producer or source: Aluminum Company of Canada Ltd.

AMBRALOY 928

Alloy Digest ◽  
1958 ◽  
Vol 7 (10) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Strength ◽  
General Corrosion ◽  
Copper Aluminum

Abstract AMBRALOY-928 is a copper-aluminum alloy having high strength, hardness and excellent resistance to general corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, machining, and joining. Filing Code: Cu-69. Producer or source: American Brass Company.

ALCOA ALUMINUM ALLOY 7050

Alloy Digest ◽  
1990 ◽  
Vol 39 (1) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
High Temperature ◽  
Magnesium Alloy ◽  
Stress Corrosion Cracking ◽  
Heat Treating ◽  
Thin Sections ◽  
Aerospace Applications ◽  
Temperature Performance ◽  
Aluminum Company

Abstract ALCOA ALUMINUM ALLOY 7050 is an aluminum-zinc-copper-magnesium alloy with a superior combination of strength, stress-corrosion cracking resistance and toughness, particularly in thick sections. In thin sections it also possesses an excellent combination of properties that are important for aerospace applications. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, and joining. Filing Code: Al-233. Producer or source: Aluminum Company of America. Originally published as Aluminum 7050, January 1979, revised January 1990.

Sign in / Sign up

Export Citation Format

Share Document