Blar i NTNU Open på forfatter "Liu, Manping"
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Achieving ultrahigh strength in binary Al-10Mg alloy through heavy cryogenic rolling
Liu, Zhibo; Lin, Yaojun; Yan, Zhigang; Liu, Manping; Liu, Xiaochun; Sun, Jiani; Roven, Hans Jørgen (Peer reviewed; Journal article, 2022)Al-Mg alloys with high Mg contents have attracted considerable interest given enhanced strength and simultaneously reduced density by high Mg solute concentrations. In the present study, we proposed a strategy of strengthening ... -
Deformation defects and electron irradiation effect in nanostructured Al-Mg alloy processed by severe plastic deformation
Liu, Manping; Sun, Shaochun; Roven, Hans Jørgen; Yu, Yingda; Zhang, Zhen; Murashkin, Maxim; Valiev, Ruslan Z. (Journal article; Peer reviewed, 2012)In order to explore the exact nature of deformation defects previously observed in nanostructured Al-Mg alloys subjected to severe plastic deformation, a more thorough examination of the radiation effect on the formation ... -
DSC analyses of static and dynamic precipitation of an Al-Mg-Si-Cu aluminum alloy
Liu, Manping; Wu, Zhenjie; Yang, Rui; Wei, Jiangtao; Yu, Yingda; Skaret, Pål Christian; Roven, Hans Jørgen (Journal article; Peer reviewed, 2015)In the present investigation, both static and dynamic precipitations of an Al–Mg–Si–Cu aluminum alloy after solid-solution treatment (SST) were comparatively analyzed using differential scanning calorimetry (DSC). Dynamic ... -
Effect of cryorolling on microstructure and mechanical properties of a peak-aged AA6082 extrusion
Xu, Zebing; Liu, Manping; Jia, Zhihong; Roven, Hans Jørgen (Journal article; Peer reviewed, 2017)Peak-aged AA6082 flat extrusions were cryorolled at liquid nitrogen temperature to three different thickness reductions, the reductions were 21%, 42% and 85%, respectively. Microstructure and plastic deformation behaviors ... -
Effect of Mg on microstructure and mechanical properties of Al-Mg alloys produced by high pressure torsion
Liu, Yang; Liu, Manping; Chen, Xuefei; Cao, Yang; Roven, Hans Jørgen; Maxim, Murashkin; Valiev, Ruslan Z.; Zhou, Hao (Journal article; Peer reviewed, 2019)Al-Mg alloys are a series of low cost and low density Al alloys, which show remarkable strengthening during deformation. In this work, study of commercial purity Al, Al-0.5Mg and Al-4.1Mg alloys was carried out to investigate ... -
Effect of Zr and Er on the microstructure, mechanical and electrical properties of Al-0.4Fe alloy
Kong, Yaping; Jia, Zhihong; Liu, Zhipeng; Liu, Manping; Roven, Hans Jørgen; Liu, Qing (Peer reviewed; Journal article, 2021)The effect of Zr and Er on the microstructure, electrical conductivity and mechanical properties of Al-0.4Fe alloy was investigated using optical microscope (OM), scanning electron microscope (SEM), electron back-scattered ... -
Enhanced ductility and strength in a cast Al–Mg alloy with high Mg content
Liu, Zhibo; Sun, Jiani; Yan, Zhigang; Lin, Yaojun; Liu, Manping; Roven, Hans Jørgen; Dahle, Arne K. (Journal article; Peer reviewed, 2021)Cast Al–Mg alloys with high Mg content have attracted considerable interest as a result of exceptionally low mass density and enhanced Mg solid-solution strengthening effect. However, poor ductility in this class of cast ... -
Finite element analysis of strain distribution in ZK60 Mg alloy during cyclic extrusion and compression
Lin, Jinbao; Wang, Qudong; Liu, Manping; Chen, Yongjun; Roven, Hans Jørgen (Journal article; Peer reviewed, 2012)Finite element method was used to study the strain distribution in ZK60 Mg alloy during multi-pass cyclic extrusion and compression (CEC). In order to optimize the CEC processing, the effects of friction condition and die ... -
Microstructure and enhanced mechanical properties of an Mg-10Gd-2Y-0.5Zr alloy processed by cyclic extrusion and compression
Peng, Tao; Wang, Qudong; Lin, Jinbao; Liu, Manping; Roven, Hans Jørgen (Journal article; Peer reviewed, 2011)The evolution of microstructure and texture of an extruded GW102K Mg alloy processed by cyclic extrusion and compression (CEC) at 450 °C were investigated. Tensile tests were performed at room temperature and strain rate ... -
Microstructure and Mechanical Properties of 6013 Aluminum Alloy Processed by a Combination of ECAP and Preaging Treatment
Jiang, Jiawei; Liu, Manping; Liu, Yang; Tang, Kai; Wang, Zibo; Li, Yichao; Yu, Yingda; Skaret, Pål Christian; Roven, Hans Jørgen (Journal article; Peer reviewed, 2017)Microstructure and mechanical properties of a 6013 Al-Mg-Si-Cu aluminum alloy processed by a combination of equal channel angular pressing (ECAP) and preaging treatment were comparatively investigated using quantitative ... -
Microstructure and texture characteristics of ZK60 Mg alloy processed by cyclic extrusion and compression
Lin, Jinbao; Wang, Qudong; Chen, Yongjun; Liu, Manping; Roven, Hans Jørgen (Journal article; Peer reviewed, 2010)The microstructure and crystallographic texture characteristics of an extruded ZK60 Mg alloy subjected to cyclic extrusion and compression (CEC) up to 8 passes at 503 K were investigated. The local crystallographic texture, ... -
Special nanostructures in Al-Mg alloys subjected to high pressure torsion
Liu, Manping; Roven, Hans Jørgen; Liu, XT; Murashkin, Maxim; Valiev, Ruslan Z.; Ungar, Tamas; Balogh, Lavente (Journal article; Peer reviewed, 2010)Deformation twins and stacking faults were observed in nanostructure Al-Mg alloys subjected to high pressure torsion. These observations are surprising because deformation twinnings have never been observed in their ...