Microstructures and properties of 6016 aluminum alloy with gradient composition

In order to improve formability of high strength Al-alloy sheet metal, in this paper, it come up with the synchronized cooling hot forming process. Taking the aluminum alloy of 6016 H18 aluminum alloy, which carried out its technology test by Gleeble3500 hot-mechanical simulator. The process parameters such as deformation temperature T, holding time t and cooling rate v is investigated by the orthogonal test and the microstructure is analyzed simultaneously. The results show that the synchronized cooling hot forming process can be applied to 6016 H18 aluminum alloy, it both improves the formability of 6016 H18 aluminum alloy significantly and obtains the high strength after forming, it can meet the purpose of implementing deformation and enhanced in one process step, the proper combination of process parameters are T=450 °C, t=210 s, v=60 °C/s. Strengthening mechanism is which there is a large number of strengthening phase precipitated from matrix in technology process, the strengthening phases are coarser and the dispersed uniformity is a bit worse compared with that of T4 state.

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Superplasticity of 6016 aluminum alloy at elevated temperatures

Rare Metals ◽

10.1007/s12598-015-0477-6 ◽

2015 ◽

Vol 34 (6) ◽

pp. 387-394 ◽

Cited By ~ 3

Author(s):

Ji-Xiang Zhang ◽

Jin-Xin Fan ◽

Yun-Teng Liu ◽

Wei Feng

Keyword(s):

Aluminum Alloy ◽

Elevated Temperatures ◽

6016 Aluminum Alloy

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The Flow Stress Feature and Constitutive Equation of 6016 Aluminum Alloy during Hot Compression

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.538-541.1687 ◽

2012 ◽

Vol 538-541 ◽

pp. 1687-1692

Author(s):

Ji Xiang Zhang ◽

Wei Feng ◽

Hui Wen ◽

Guo Yin An

Keyword(s):

Aluminum Alloy ◽

Flow Stress ◽

Linear Regression ◽

Constitutive Equation ◽

Strain Rate ◽

Strain Rate Range ◽

Thermal Simulation ◽

Hot Compression ◽

Rate Range ◽

6016 Aluminum Alloy

The flow stress behavior of 6016 aluminum alloy was investigated on the condition of temperature range from 420°C to 540°C and strain rate range from 0.001s-1to 1s-1based on hot compression experiment on Gleeble-1500 thermal simulation machine. The result shows that the flow stress of 6016 aluminum alloy decreases with the enhancement of temperature and increases with the increase of strain rate. Especially, the flow stress increases tendency becomes obvious when the strain rate greater than 0.1s-1. Based on the results above, a constitutive equation for flow stress of 6016 aluminum alloy when the temperature is above 420°C is obtained by linear regression.

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+Effect of niobium on microstructure and properties of 6016 aluminum alloy

Journal of Physics Conference Series ◽

10.1088/1742-6596/2044/1/012090 ◽

2021 ◽

Vol 2044 (1) ◽

pp. 012090

Author(s):

Bo Lu ◽

Anmin Li ◽

Chan Wu ◽

Huirong Yang ◽

Yu Rao

Keyword(s):

Aluminum Alloy ◽

Microstructure And Properties ◽

6016 Aluminum Alloy

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Dynamic Recrystallization in Similar 5182 Al/Al and Dissimilar Al/Fe Friction Stir Spot Welds

Materials Science Forum ◽

10.4028/www.scientific.net/msf.715-716.152 ◽

2012 ◽

Vol 715-716 ◽

pp. 152-157

Author(s):

Anne Laure Etter ◽

Sandrine Bozzi ◽

Thierry Baudin

Keyword(s):

Aluminum Alloy ◽

Friction Stir Welding ◽

Dynamic Recrystallization ◽

Spot Welding ◽

Dynamic Recovery ◽

Friction Stir Spot Welding ◽

If Steel ◽

Friction Stir ◽

6016 Aluminum Alloy ◽

Dynamic Grain Growth

Dynamic recrystallization mechanisms have been studied after 5182 aluminum Friction Stir Spot Welding (FSSW) and dissimilar friction stir spot welding of 6016 aluminum alloy to IF-steel using EBSD measurements. Moreover, welds have been ice quenched after welding to state on the post-dynamic microstructure evolution after the tool removal. For the Al/Al welds, fine recrystallized grains of the stir zone result from a continuous dynamically recrystallization mechanism followed by a post-dynamic recovery that reduces the low angle boundary fraction in the periphery of the pin. As far as the dissimilar Al/Fe welds are concerned, steel grains of the base metal were fragmented into sub-grains in the thermomechanically affected zone. Nevertheless, recrystallized grains of the stirred zone were about three times larger than these sub-grains. In this case, the continuously recrystallized grains undergo a post-dynamic grain-growth during friction stir welding cooling. In the upper aluminum sheet, the recrystallization mechanisms are the same as in the Al/Al welds.

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