Anisotropic yielding behavior and associated mechanism of cold rolled and annealed Zircaloy-4 alloy thin sheets under tensile condition

2020 ◽  
Vol 242 ◽  
pp. 122539
Author(s):  
Fuzhou Han ◽  
Geping Li ◽  
Chengze Liu ◽  
Fusen Yuan ◽  
Yingdong Zhang ◽  
...  
2015 ◽  
Vol 47 (12) ◽  
pp. 5771-5776 ◽  
Author(s):  
Yongchuang Yao ◽  
Yuhui Sha ◽  
Jinlong Liu ◽  
Fang Zhang ◽  
Liang Zuo

2010 ◽  
Vol 654-656 ◽  
pp. 480-483
Author(s):  
Yasuyuki Kaneno ◽  
Yasunori Fujimoto ◽  
Takayuki Takasugi

The effect of Al addition on microstructures and tensile properties of cold-rolled Ni3(Si,Ti) intermetallic alloys with L12 ordered structure, which were fabricated through thermomechanical processing from arc-melted ingots, were investigated. Addition of 4 and 8 at.% Al to Ni3(Si,Ti) was conducted in two ways that Al substituted for Ti site and both for Ni and Ti sites, respectively. The alloys made by the former way showed a two-phase microstructure consisting of disordered fcc Ni solid solution dispersions in the L12 matrix, irrespective of Al contents, while the 4 at.% Al alloy made by the latter way exhibited an L12 single-phase microstructure. These alloys were successfully cold-rolled to thin sheets with a thickness of 200 μm except the 8 at.% Al alloy made by the latter way. For the thermomechanically processed 4 at.% Al alloys, high-temperature yield stress was higher in the alloy made by the latter way than in the alloy made by the former one, suggesting that the single-phase microstructure consisting of whole L12 ordered structure is favorable for high-temperature tensile property.


Author(s):  
Flávia da Cruz Gallo ◽  
Luiz Maurício Barreto de Azevedo ◽  
Arthur Ribeiro Figueiredo ◽  
Amanda de Vasconcelos Varela ◽  
Leonardo Sales Araújo ◽  
...  

2019 ◽  
Vol 756 ◽  
pp. 27-34 ◽  
Author(s):  
Gang Chen ◽  
JiaZheng Shen ◽  
Qiang Zhu ◽  
ShengJie Yao ◽  
ChuanJie Wang ◽  
...  

2015 ◽  
Vol 637 ◽  
pp. 215-221 ◽  
Author(s):  
Jong Woo Won ◽  
Kyung-Tae Park ◽  
Seong-Gu Hong ◽  
Chong Soo Lee

2012 ◽  
Vol 535-537 ◽  
pp. 615-619 ◽  
Author(s):  
Jinlong Liu ◽  
Yu Hui Sha ◽  
Yong Chuang Yao ◽  
Fang Zhang ◽  
Liang Zuo

The 4.2wt.%Si non-oriented electrical steel thin sheets with the thickness of 0.30mm were produced by the conventional procedure including hot rolling, cold rolling and annealing. The recrystallization texture was analyzed with emphasis on the effect of normalizing annealing. The results show that the  fiber with peak at {111} is weaker and η fiber is stronger in the sheets with normalizing annealing than those without normalizing annealing, either under the cold rolled reduction of 77% or 86%. Effects of normalizing annealing on the recrystallization texture can be explained in terms of the characteristic of the shear bands formed during cold rolling process.


Materials ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6121
Author(s):  
Jian-Zhi Chen ◽  
Qin Du ◽  
Guang-Ping Zhang ◽  
Bin Zhang

Cold-rolled EA4T steel was heat-treated by inter-critical holding at 755 °C for 90 s, 120 s, 180 s, and 240 s, respectively, and then quenching in water. The tensile testing results of the EA4T specimens show an evident transition from the discontinuous yielding to the continuous yielding of the steel specimens by prolonging the holding time. A novel relationship between the discontinuous yielding behavior of tensile-deformed steel specimens and the carbide size was proposed based on experimental results and Cottrell’s theory. The model may provide a new clue for avoiding discontinuous yielding and improving mechanical properties of metals with static strain aging behaviors.


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