scholarly journals The Effects of Heat Straightening Temperature on the Microstructure and Properties of 7N01 Aluminum Alloy

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 2949 ◽  
Author(s):  
Shuai Li ◽  
Honggang Dong ◽  
Lei Shi ◽  
Xingxing Wang ◽  
Zhongying Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Grain Boundary ◽  
Natural Aging ◽  
Aging Effect ◽  
Alloy Matrix ◽  
The Difference ◽  
Heat Straightening

The 7N01 aluminum alloys are always used in vehicles, but heat treatment can deteriorate mechanical properties and corrosion resistance, which limits its utilization. In this paper, the influences of the temperature of heat straightening on the corrosion behavior and mechanical properties of 7N01 aluminum alloy are investigated. Most of the initial Guinier Preston (GP) zones dissolve into the matrix during heat treatment process, while the grain boundary precipitates have no obvious change. The precipitates of the samples after heat treatment mainly consist of high density GP zones due to the natural aging effect, which result in the recovery of micro-hardness. Although heat treatment decreases the mechanical properties of 7N01 aluminum alloy, there is no obvious difference in mechanical properties of the specimens after different heat treatment conditions. The corrosion resistance of heat treatment samples decreases significantly compared with the base metal, which is attributed to enhancing the difference between the potential of the alloy matrix and the grain boundary.

ALUMINUM 710.0

Alloy Digest ◽  
1983 ◽  
Vol 32 (9) ◽  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Tensile Properties ◽  
High Resistance ◽  
Natural Aging ◽  
Heat Treating

Abstract ALUMINUM 710.0 is a natural-aging aluminum alloy produced by sand casting. It develops high mechanical properties without a quenching heat treatment. This alloy has high resistance to shock and excellent resistance to corrosion. Aluminum 710.0 is recommended for highly stressed castings. This datasheet provides information on composition, physical properties, hardness, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Al-247. Producer or source: Various aluminum companies.

ALUMINUM A612

Alloy Digest ◽  
1965 ◽  
Vol 14 (4) ◽  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Natural Aging ◽  
Heat Treating ◽  
Aluminum Company ◽  
Excellent Corrosion Resistance ◽  
High Shock ◽  
Shock Resistance

Abstract Aluminum A612 is a natural aging aluminum alloy that develops high mechanical properties without a quenching heat treatment. It has high shock resistance and excellent corrosion resistance. It is recommended for highly stressed castings. This datasheet provides information on composition, physical properties, hardness, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Al-144. Producer or source: Aluminum Company of America.

Effect of Non-Conventional Aging Treatments on the Tensile Properties of Non-Hipped Castings of Aluminum Alloy 354

2014 ◽  
Vol 875-877 ◽  
pp. 1397-1405 ◽  
Author(s):  
G. Dinesh Babu ◽  
M. Nageswara Rao
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Aluminum Alloy ◽  
Tensile Properties ◽  
Artificial Aging ◽  
Natural Aging ◽  
Single Step ◽  
Cast Aluminum Alloy ◽  
Cast Aluminum ◽  
Automobile Components

Cast aluminum alloy 354 is used extensively for production of critical automobile components, owing to its excellent castability and attractive combination of mechanical properties after heat-treatment. With the advent of higher performance engines, there has been a steady demand to further improve the mechanical behavior of the castings made of the alloy, among others, through improvements in processing. The present study explores the possibility of improving tensile properties of the alloy by adopting certain non-conventional aging treatments. The non-conventional treatments include aging cycles similar to T6I4 and T6I6 referred to in the published literature, artificial aging in two steps instead of in single step and artificial aging preceded by various natural aging times. The results show that none of these non-conventional treatments leads to improvement of all tensile properties compared to the standard T61 treatment. Significant hardening takes place in the alloy due to natural aging. Changing the time of natural aging preceding artificial aging was found to have little effect on tensile properties.

ALUMINUM 75S

Alloy Digest ◽  
1953 ◽  
Vol 2 (2) ◽  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Low Temperature ◽  
Physical Properties ◽  
Heat Treating ◽  
Temperature Performance ◽  
Aluminum Company

Abstract ALUMINUM 75S is an ultra-strength aluminum alloy exhibiting exceptional mechanical properties, workability, and response to various degrees of heat treatment and refrigeration. It is suitable for highly stressed primary structures. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on low temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Al-5. Producer or source: Aluminum Company of America.

ALUMINUM 7075

Alloy Digest ◽  
1973 ◽  
Vol 22 (2) ◽  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
High Temperature ◽  
Physical Properties ◽  
Heat Treating ◽  
Temperature Performance ◽  
Aluminum 7075

Abstract ALUMINUM 7075 is a wrought precipitation-hardenable aluminum alloy having excellent mechanical properties, workability and response to heat treatment and refrigeration. (This alloy is covered under its previous designation, ALUMINUM 75S, in Alloy Digest Al-5, February 1953). This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on low and high temperature performance, and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Al-179. Producer or source: Various aluminum companies.

THE INFLUENCE OF HEAT TREATMENT ON THE MECHANICAL PROPERTIES OF ALUMINUM ALLOY 7150-T77 USED IN AEROSPACE

2019 ◽  
Vol 33 (1) ◽  
pp. 25-30
Author(s):  
Vasile Hotea ◽  
◽  
Jozsef Juhasz ◽  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Corrosion Test ◽  
Artificial Aging ◽  
Two Stage ◽  
Heat Treated ◽  
Aeronautical Industry ◽  
Mechanical Properties And Corrosion

In this paper, the samples were heat treated by two-stage artificial aging to investigate the effect on the mechanical properties of the 7150-T77 aluminum alloy, and finally subjected eventually to the ESCO corrosion test according to ASTM G34-01 standard. The results have shown that the mechanical properties and corrosion resistance induced by cracking at alloy 7150 can be improved by two-stage customized heat treatment for a specific application in the aeronautical industry.

scholarly journals Quenching Sensitivity of Al-Zn-Mg Alloy after Non-Isothermal Heat Treatment

Materials ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1595 ◽  
Author(s):  
Shuai Li ◽  
Honggang Dong ◽  
Xingxing Wang ◽  
Zhongying Liu
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Grain Boundary ◽  
Mg Alloy ◽  
Air Cooling ◽  
Isothermal Heat Treatment ◽  
Boundary Precipitate ◽  
The Matrix ◽  
Mechanical Properties And Corrosion

Type Al-Zn-Mg alloy has a wide ranges of application in vehicles, but corrosion resistance and mechanical properties of this alloy after heat treatment or heat straightening limits its utilization. This paper investigates the effect of quenching condition during non-isothermal heat treatment on corrosion behavior and mechanical properties of Al-Zn-Mg alloy. The corrosion resistance of Al-Zn-Mg alloy decreases after non-isothermal heat treatment and the sample after air quenching has the lowest corrosion resistance, the specimens can get better corrosion resistance when suffered 5 min air cooling followed by water quenching process. The evolution of mechanical properties and corrosion resistance of heat-treated specimens is caused by the modification of distribution of precipitates at grain boundary and the microchemistry of precipitates at grain boundary, precipitate-free zones and the matrix.

scholarly journals The Effect of Pre Weld Heat Treatment on the Mechanical Properties and Corrosion Resistance of Artificially Aged 8011A Aluminum Alloy

2020 ◽  
pp. 1-7
Author(s):  
Isiaka Oluwole Oladele ◽  
Samson Adelani Oluwagbenga ◽  
Joseph Ajibade Omotoyinbo
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Aluminum Alloy ◽  
Welding Process ◽  
Inert Gas ◽  
Artificial Ageing ◽  
Heat Treated ◽  
Mechanical Properties And Corrosion ◽  
Weld Heat

In this study, 8011A aluminum alloy was subjected to artificial ageing and joined by tungsten inert gas (TIG) welding process. The effect of welding process on the mechanical (hardness, tensile, impact) properties, corrosion resistance and microstructure of the artificially aged and welded joints were investigated. The sample was divided into pre weld heat treated and as received samples. The pre weld heat treated sample was subjected to solution treatment at 500 °C, soaking for 1 hour, and quench in water before artificial ageing was carried out at 180 °C with holding time of 8 hours. Both the pre heat treated and the as received samples were welded using tungsten inert gas (TIG) welding process. It was observed from the results, that the pre weld heat treatment adopted improved the mechanical properties and corrosion resistance of the weldments in some of the properties examined. In comparison with the welded samples, the hardness, tensile yield strength and corrosion resistance of the pre weld heat treated samples were significantly improved. There was an improvement of 11% in hardness, 9% in yield strength and 92 % in corrosion resistance when immersed in 3.5 wt% NaCl solution.

ALUMINUM 62S

Alloy Digest ◽  
1953 ◽  
Vol 2 (12) ◽  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Corrosion Resistance ◽  
Salt Water ◽  
Heat Treating ◽  
Magnesium Silicide ◽  
Age Hardening ◽  
Aluminum Company ◽  
Wrought Aluminum ◽  
Hardening Heat Treatment

Abstract ALUMINUM 62S is a magnesium silicide type of wrought aluminum alloy with high resistance to fresh and salt water corrosion. It responds to age hardening heat treatment for high mechanical properties. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Al-11. Producer or source: Aluminum Company of America.

KAISER ALUMINUM ALLOY KA62

Alloy Digest ◽  
1999 ◽  
Vol 48 (10) ◽  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Physical Properties ◽  
Surface Treatment ◽  
Physical And Mechanical Properties ◽  
Heat Treating ◽  
Lead Free ◽  
Kaiser Aluminum

Abstract Kaiser Aluminum alloy KA62 (Tennalum alloy KA62) is a lead-free alternative to 6262. It offers good machinability and corrosion resistance and displays good acceptance of coatings (anodize response). It can be used in place of 6262 because its physical and mechanical properties are equivalent to those of 6262 (see Alloy Digest Al-361, September 1999). This datasheet provides information on composition, physical properties, hardness, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, heat treating, machining, and surface treatment. Filing Code: AL-362. Producer or source: Tennalum, A Division of Kaiser Aluminum.

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