Browsing NTNU Open by Author "Zhao, Qinglong"
Now showing items 1-9 of 9
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Correlating oriented grain number density of recrystallisation in particle-containing aluminium alloys
Zhao, Qinglong; ZHANG, Hui-di; Huang, Ke; Marthinsen, Knut (Journal article; Peer reviewed, 2018)The recrystallized grain structure of Al–(Mn)–Fe–Si alloys after isothermal annealing was studied by electron backscatter diffraction (EBSD) technique. Statistical correlation suggests that the frequency of forming P-oriented ... -
Influence of dispersoids on grain subdivision and texture evolution in aluminium alloys during cold rolling
Zhao, Qinglong; Holmedal, Bjørn (Journal article, 2014)Al-Mn alloys containing similar amounts of solutes but various dispersoid densities were cold rolled. The grain subdivision and micro-texture were examined by electron backscatter diffraction and orientation imaging ... -
Influence of dispersoids on microstructure evolution and work hardening of aluminium alloys during tension and cold rolling
Zhao, Qinglong; Holmedal, Bjørn; Li, Yanjun (Journal article; Peer reviewed, 2013)The influence of dispersoids on work hardening of aluminium during tension and cold rolling has been studied by comparing Al–Mn alloys containing similar amounts of solutes but various dispersoid densities. The microstructure ... -
Introducing high-density growth twins in aluminum alloys by laser surface remelting via templated nucleation of grains
Ma, C; Zhao, Qinglong; Li, Yanjun; Jiang, Qichuan (Journal article; Peer reviewed, 2024)It is difficult to generate coherent twin boundaries in bulk Al alloys due to their high intrinsic stacking fault energy. Here, we report a strategy to induce high-density growth twins in aluminum alloys through the ... -
Modelling work hardening of aluminium alloys containing dispersoids
Zhao, Qinglong; Holmedal, Bjørn (Journal article; Peer reviewed, 2013)The influence of dispersoids on tensile deformation behaviour has been studied by comparison of aluminium alloys containing different dispersoid densities. It was found that a fine dispersion of non-shearable particles led ... -
Nanoparticle additions promote outstanding fracture toughness and fatigue strength in a cast Al–Cu alloy
Yang, Chenglin; Zhao, Qinglong; Zhang, Zhenjun; Li, Linlin; Tian, Weisi; Liu, Rui; Zhang, Peng; Xu, Yijiang; Li, Yanjun; Zhang, Zhefeng; Jiang, Qichuan; Ritchie, Robert (Peer reviewed; Journal article, 2020)Fatigue resistance and fracture toughness are essential to the reliability of castings during service. Reducing microporosity in cast alloys is a crucial issue for improving their fatigue strength and fracture toughness. ... -
The double-edge effect of second-phase particles on the recrystallization behaviour and associated mechanical properties of metallic materials
Huang, Ke; Marthinsen, Knut; Zhao, Qinglong; Loge, Roland E. (Journal article; Peer reviewed, 2018)Most industrial alloys contain a matrix phase and dispersed second-phase particles. Several thermomechanical processing (TMP) steps are usually needed to produce a final product, during which recrystallization and its ... -
The effect of silicon on the strengthening and work hardening of aluminum at room temperature
Zhao, Qinglong; Holmedal, Bjørn (Journal article; Peer reviewed, 2013)Solution hardening of Al–Si alloys at room temperature was investigated by tensile tests of several aluminum alloys containing various amounts of Si in solution but fabricated from the same commercially pure base material. ... -
The influence of Mn, Fe and Si on the work hardening of aluminum alloys
Zhao, Qinglong (Doktoravhandlinger ved NTNU, 1503-8181; 2013:16, Doctoral thesis, 2013)The relationship between the processing, the structure and the properties is a key issue of materials science research. The improvement of the properties and optimization of the process always requires a better understanding ...