Microstructural evolution and sagging behavior of cold-rolled Al-1.3Mn-1.5Zn-xZr core sheet for brazing

2022 ◽  
Vol 891 ◽  
pp. 161927
Author(s):  
Hao Li ◽  
Guangxi Lu ◽  
Cong Xu ◽  
Shaokang Guan
2021 ◽  
Vol 800 ◽  
pp. 140344 ◽  
Author(s):  
Xiliang Zhang ◽  
Junhui Yan ◽  
Tao Liu ◽  
Hongji Liu ◽  
Yindong Shi ◽  
...  

2010 ◽  
Vol 654-656 ◽  
pp. 448-451 ◽  
Author(s):  
Yuki Tsukamoto ◽  
Satoru Kobayashi ◽  
Takayuki Takasugi

The thermodynamic stability ’- Co3(Al,W) phase (L12) in the Co-Al-W ternary system at 900 °C was investigated through microstructure and EPMA analysis on a heat-treated bulk alloy. To promote microstructural evolution, the bulk alloy was cold rolled before heat treatment. By heating at 900 °C, the ’ phase was formed discontinuously in contact with the -Co (A1) phase. With increasing heat treatment time, however, the fraction of ’ phase decreased while that of , CoAl (B2) and Co3W (D019) phases increased. These results are consistent with our previous work with a diffusion-couple method, indicating that the ’ phase is metastable, and the three phases of, CoAl and Co3W are thermodynamically stable at 900 °C.


2016 ◽  
Vol 26 (1) ◽  
pp. 61-68
Author(s):  
A. Tabei ◽  
J. Startt ◽  
R. T. Hoffman ◽  
E. Yavari ◽  
C. Deo ◽  
...  

2006 ◽  
Vol 519-521 ◽  
pp. 1647-1652 ◽  
Author(s):  
R. Roumina ◽  
Chad W. Sinclair ◽  
F. Fazeli

The addition of scandium severely retards the recrystallization of Al-Sc alloys when it is present in the form of fine Al3Sc precipitates. Though many studies have focused on the role of Al3Sc in the deformation and recrystallization of pre-aged or hot deformed Al-Sc alloys, recent studies on the annealing response of solutionized and cold rolled material have shown various possibilities for microstructural stability depending on the relative kinetics of precipitation and recrystallization. In this study, the microstructural evolution of solutionized and cold rolled Al- 2.9wt%Mg-0.16wt%Sc has been followed in order to evaluate the role of imposed strain and annealing temperature on the recrystallization kinetics.


2012 ◽  
Vol 706-709 ◽  
pp. 1291-1296 ◽  
Author(s):  
Sang Bong Yi ◽  
Jan Bohlen ◽  
Stefanie Sandlöbes ◽  
Stefan Zaefferer ◽  
Dietmar Letzig ◽  
...  

Microstructural evolution during the annealing of cold rolled Mg, Mg-1.5Nd and Mg-3Y sheets has been examined. The experimental results show a significant difference in recrystallization kinetics and grain growth between pure Mg and Mg-RE alloy sheets. Pure Mg sheet shows rapid recrystallization and grain growth, whereas recrystallization is considerably retarded in the Mg-RE alloys. Although recrystallized grains which are triggered at shear bands in the cold rolled pure Mg sheet show a relatively weak texture with a basal pole split into the sheet rolling direction, rapid grain growth is accompanied by re-strengthening of the basal-type texture. In contrast, a weak texture appears in the early recrystallization stage in Mg-RE alloys and is retained during annealing due to retarded recrystallization and grain growth.


2021 ◽  
Vol 851 ◽  
pp. 156893 ◽  
Author(s):  
Mingwang Xie ◽  
Wei Huang ◽  
Huiming Chen ◽  
Liukui Gong ◽  
Weibin Xie ◽  
...  

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