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Yue Y.-C.,Kunming Metallurgical Institute | Yue Y.-C.,Kunming University of Science and Technology | Yang G.,Kunming Metallurgical Institute | Yang G.,Kunming University of Science and Technology | And 4 more authors.
Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment | Year: 2014

Evolution of grain orientation in ultra-thin aluminum foil blank by casting-rolling and cold-rolling was analyzed by electron back-scattered diffraction (EBSD). The results show that (102)[221] texture, (101)[101] texture and (001)[1-1-0] rotating cube texture are formed in aluminum foil blank after cold-rolling. With the increasing of annealing temperature and holding time, the textures of the blank are mainly composed of (001)[100] cubic texture and (101)[101] texture. Cubic texture orientation density enhibits the maximum value of 15.786, which is reduced to 1.197 by the middle annealing, and (101)[101] texture exists in the whole preparation process.


Yue Y.,Kunming Metallurgical Institute | Yue Y.,Kunming University of Science and Technology | Yang G.,Kunming Metallurgical Institute | Yang G.,Kunming University of Science and Technology | And 4 more authors.
Jinshu Rechuli/Heat Treatment of Metals | Year: 2013

Microstructure and mechanical properties of continuous cast and rolled aluminum foil blank under different homogenizing annealing processes were studied. The results show that with annealing temperature and hold time increasing, the grain size grow up. At 630 °C×7 h annealing process, the anisotropic of aluminum foil stock is almost eliminated, and elongation is above 30%, which is favor of continued deformation. The qualifiled product rate is relatively higher and average number of pinhole is less of aluminum foil prepared at the process, and 630 °C×7 h annealing process is the favorable.


Tan G.,Kunming Metallurgical Institute | Yue Y.,Kunming Metallurgical Institute | Cao R.,Kunming Metallurgical Institute | Yang G.,Kunming Metallurgical Institute | Ma N.,Yunnan Haoxin Aluminum Foil Co.
Jinshu Rechuli/Heat Treatment of Metals | Year: 2016

The microstructure of 1235 aluminum alloy under different annealing time was studied by means of optical microscope. The full grain growth process was described by Beck formula. The results show that the grain size increases with the increase of annealing time. The grain growth gradually stops increasing when the annealing time reaches 3 h and the recrystallization is over. The grain growth kinetics formula is obtained, calculation results based on kinetics formula and real grain size fit well, which mean the forecast results of grain size after different annealing time based on grain growth kinetics formula are reliable. © 2016, Editorial Office of "Jinshu Rechuli". All right reserved.


Tan G.,Kunming Metallurgical Institute | Yue Y.,Kunming Metallurgical Institute | Yang G.,Kunming Metallurgical Institute | Zhou X.,Kunming Metallurgical Institute | And 3 more authors.
Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering | Year: 2016

The evolution behavior of Al-Fe-Si secondary phase particles in 1235 ultra-thin double zero foil blank during rolling process was observed by TEM. The results show that bulk secondary phase particles are elongated under the shear stress during rolling process. Meanwhile many small spherical secondary phase particles are concentrated around the elongated bulk secondary phase particles. The major reason for secondary phase particles dissolution and spheroidizing is diffusion process. In addition, crystal defects such as high density dislocations and vacancies are the main channels of secondary phase particles dissolution. © 2016, Science Press. All right reserved.


Zhou X.,Kunming Metallurgical Institute | Yang G.,Kunming Metallurgical Institute | Zhou L.,Kunming Metallurgical Institute | Sun Y.,Kunming Metallurgical Institute | Yue Y.,Kunming Metallurgical Institute
Jinshu Rechuli/Heat Treatment of Metals | Year: 2016

Mechanical properties, fatigue properties and fracture features of titanium alloy medical hip joint were investigated according to different heat treatment. The results show that a preferable heat treatment process of the medical hip joint is annealed at 560℃ for 4 h with furnace cooling. The tensile strength, elongation and fatigue cycle numbers are 925 MPa, 11.3% and 12773 times, respectively. Under the optimum annealing process, the low-cycle fatigue of medical hip joint in the stable spread region is fatigue striation expansion mechanism, and the final crack region mainly presents micro-cleavage fracture. © 2016, Editorial Office of "Jinshu Rechuli". All right reserved.

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