Effect of thermo-mechanical processing parameters on the dynamic restoration mechanism in an Mg-4Y-2Nd-1Sm-0.5Zr alloy during hot compression

The paper deals with the effects of thermo-mechanical processing parameters on the properties of two Al-Fe-Si foil alloys. Two twin roll cast alloys with high Fe/Si ratios (Fe/Si≈6) were processed under different combinations of homogenization, deformation and annealing treatments. The influence of small additions of manganese on the mechanical behavior and plastic anisotropy of sheets in hardening and annealing conditions are described. The corrosion resistance of tested sheets in chloride ambience is also presented, because this type of Al foils is dominantly used in the packaging (food) industry and heat exchangers.

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Effects of Dynamic Precipitation and Processing Parameters on Dynamic Recrystallization Behavior of 2195 Al-Cu-Li Alloy during Hot Compression

Journal of Materials Engineering and Performance ◽

10.1007/s11665-021-06390-z ◽

2021 ◽

Author(s):

You-jie Guo ◽

Jin-feng Li ◽

Ding-ding Lu ◽

Hong Ning ◽

Wen You ◽

...

Keyword(s):

Dynamic Recrystallization ◽

Processing Parameters ◽

Hot Compression ◽

Recrystallization Behavior ◽

Dynamic Precipitation ◽

Dynamic Recrystallization Behavior

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Hot Deformation Behavior Considering Strain Effects and Recrystallization Mechanism of an Al-Zn-Mg-Cu Alloy

Materials ◽

10.3390/ma13071743 ◽

2020 ◽

Vol 13 (7) ◽

pp. 1743 ◽

Cited By ~ 3

Author(s):

Lei Luo ◽

Zhiyi Liu ◽

Song Bai ◽

Juangang Zhao ◽

Diping Zeng ◽

...

Keyword(s):

Dynamic Recrystallization ◽

Hot Deformation ◽

Deformation Behavior ◽

Processing Parameters ◽

Strain Rate Range ◽

Hot Compression ◽

Processing Maps ◽

Hot Deformation Behavior ◽

Recrystallization Mechanism ◽

Cu Alloy

The hot deformation behavior of an Al-Zn-Mg-Cu alloy was investigated by hot compression test at deformation temperatures varying from 320 to 440 °C with strain rates ranging from 0.01 to 10 s−1. The results show that the Mg(Zn, Cu)2 particles as a result of the sufficient static precipitation prior to hot compression have an influence on flow softening. A constitutive model compensated with strain was developed from the experimental results, and it proved to be accurate for predicting the hot deformation behavior. Processing maps at various strains were established. The microstructural evolution demonstrates that the dominant dynamic softening mechanism stems from dynamic recovery (DRV) and partial dynamic recrystallization (DRX). The recrystallization mechanism is continuous dynamic recrystallization (CDRX). The microstructure observations are in good agreement with the results of processing maps. On account of the processing map and microstructural observation, the optimal hot processing parameters at a strain of 0.6 are at deformation temperature range of 390–440 °C and strain rate range of 0.010–0.316 s−1 with a peak efficiency of 0.390.

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Effects of thermo-mechanical processing parameters on the special boundary configurations of commercially pure nickel

Materials Science and Engineering A ◽

10.1016/j.msea.2009.07.064 ◽

2009 ◽

Vol 527 (1-2) ◽

pp. 263-271 ◽

Cited By ~ 30

Author(s):

Qiangyong Li ◽

J.R. Cahoon ◽

N.L. Richards

Keyword(s):

Processing Parameters ◽

Pure Nickel ◽

Mechanical Processing ◽

Special Boundary ◽

Commercially Pure

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Grain Growth Behavior of AlMg5 Alloy Fabricated by Using a New Mg Mother Alloy Containing Al2Ca during Homogenization and Hot Compression

Materials Science Forum ◽

10.4028/www.scientific.net/msf.877.328 ◽

2016 ◽

Vol 877 ◽

pp. 328-333

Author(s):

Bong Hwan Kim ◽

Young Ok Yoon ◽

Shae K. Kim

Keyword(s):

Flow Stress ◽

Grain Growth ◽

Lower Energy ◽

Applied Load ◽

Growth Behavior ◽

Hot Compression ◽

Mechanical Processing ◽

Hot Compression Test ◽

Compressive Flow ◽

Grain Growth Behavior

Grain growth behavior of AlMg5 alloy fabricated by using a new Mg mother alloy containing Al2Ca (referred to as AlMg5-Al2Ca hereinafter) was investigated during homogenization and subsequent hot compression test. Normal AlMg5 alloy using a commercial Mg mother alloy showed abnormally grown large grains in its microstructure after homogenization at 520 ̊C for 12hrs, while the grain growth in the AlMg5-Al2Ca alloy was completely suppressed by formation of stable Al4Ca during solidification on grain boundary. The compressive flow stress of normal AlMg5 alloy at 400 ̊C was significantly increased after homogenization because of lack of grains having proper slip directions to the applied load. But the flow stress of AlMg5-Al2Ca alloy showing no grain growth during homogenization was slightly decreased implying lower energy needed for subsequent thermo-mechanical processing.

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