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| 1 | Texture control by {10-12} twinning to improve the formability of Mg alloys: A review显示文摘Texture control of wrought Mg alloys, particularly in rolled Mg alloy sheets, has been an important research topic for the past several decades because it has significant influence on stretch formability at room temperature. For Mg alloys, {10-12} twinning can be easily activated and causes a 86.3° lattice rotation. Thus, pre-twinning deformation is considered as an effective and low-cost method for texture control in wrought Mg and its alloys. Furthermore, it has been verified that texture control via pre-twinning deformation can remarkably improve stretch formability of rolled Mg alloy sheets. In this review, recent researches on texture control via twinning deformation and its influence on stretch formability will be critically reviewed. The main contents include the micro-mechanism and impact factors of control in twin-orientation, plastic processing techniques of pre-inducing twins and the application of pre-induced twins in improvement of stretch formability. Finally, further research directions on this field were proposed. | Bo Song Qingshan Yang Tao Zhou Linjiang Chai Ning Guo Tingting Liu Shengfeng Guo Renlong Xin | 2019 | Journal of Materials Science & Technology2019，35，10： | 8 |
| 2 | Wear Resistance of Austenitic Steel Fe–17Mn–6Si–0.3C with High Silicon and High Manganese显示文摘To solve the problem of poor wear resistance in conventional Hadfield steels under medium and low stress,a new kind of steel with high silicon and high manganese Fe–17Mn–6Si–0.3C was designed and its wear resistance was studied.The results showed that it exhibited better wear resistance than conventional Hadfield steel in both dry friction and abrasive friction.The better wear resistance of the new steel with high silicon and high manganese resulted from the stressinduced γ→ε martensitic transformation. | Haitao Si Renlong Xiong Fan Song Yuhua Wen Huabei Peng | 2014 | Acta Metallurgica Sinica(English Letters)2014，27，2： | 4 |
| 3 | Texture Characteristics of Thin Grain Oriented Silicon Steel Sheet Produced by Cross Shear Rolling显示文摘Commercial grain oriented silicon steel was cold rolled to thickness from 0.06 to 0.10 mm by cross shear rolling, then annealed in vacuum or a hydrogen atmosphere furnace. Deformation textures of the sheets were researched by ODF method and reverse pole figure quantitative analyses. The results indicate that: in the condition of the cross shear rolling, the deformation texture of rolled sheet is generally similar to that of conventional rolled sheet, however, the texture distribution through the thickness is asymmetrical. With mismatch speed ratio increasing, the amount of Goss texture increases. With reduction ratio increasing, the intensity of γ-fiber becomes strong. | Xiuhua GAO, Kemin QI, Renlong LI, Chunlin QIU, Bo MA and Guangrun BAI (Department of Metal Forming, Northeastern University, Shenyang 110006, China) | 2000 | Journal of Materials Science & Technology2000，16，2： | 2 |
| 4 | Evaluation of the reliability of twin variant analysis in Mg alloys by in situ EBSD technique显示文摘Electron backscatter diffraction(EBSD)is an orientation mapping technique,which has been widely used to study texture evolution and twinning behavior.This work aims to study the variant of{10¯12}twins during tensile deformation of AZ31 Mg alloys.An in-situ tensile stage was used,and coupled with EBSD technique,the variants of twins can be analyzed without releasing the tensile stress.Based on the EBSD maps,the first and second smallest misorientation angles(M_(1)and M 2)between each active twin and respective potential variants were calculated,and the distribution of M_(1)values with tensile strain was obtained.The results indicated that{10¯12}twins were deviated from their ideal orientations with strain increased.The criteria of M_(1)<4°and M 2−M_(1)>2°were suggested to be applied to select the data points for reliable variant identification.Moreover,it confirmed that the deviation of twin relationship was ascribed to the profuse basal glide in matrices and/or twins. | Feiya Liu Changfa Guo Renlong Xin Guilin Wu Qing Liu | 2019 | Journal of Magnesium and Alloys2019，7，2： | 2 |
| 5 | Study on cavern evolution and performance of three mixers in agitation of yield-pseudoplastic fluids显示文摘The hydrodynamic performance of three mixers single shaft central mixer(SSC), single shaft off-centred mixer(SSO), dual shaft off-centred mixer(DSO), was investigated in the mixing of yield-pseudoplastic fluids(xanthan gum solutions) in the laminar regime. To explore and determine the efficiency of three mixers, both numerical and experimental approaches were adopted. The fluid rheology was described by the Herschel–Bulkley rheological model. Computational fluid dynamics was employed to simulate the apparent viscosity distribution, mixing time, and the flow pattern inside the stirred tank. The developed model was validated through experimentally measured torque. The influence mechanism of the rotational speed and fluid rheology on the cavern evolution was explored deeply. The performances of three mixers in this work were compared at the constant power input and fluid rheology with respect to the flow pattern, mixing time, and mixing efficiency. The results verify that the faster the rotating speed, the greater influence of the fluid rheology on the cavern evolution, and the more uniform apparent viscosity distribution. Moreover, the mixing time decreases continuously as the increasing power consumption per unit volume, and the dimensionless mixing time of DSO mixer was nearly 42.8% and 6.1% shorter than that of SSC and SCO mixer at the same Reynolds number, respectively. According to the mixing efficiency criteria, these data also revealed that DSO was more efficient than SSC and SSO. | Songsong Wang Hong Li Changyuan Tao Renlong Liu Yundong Wang Zuohua Liu | 2023 | Chinese Journal of Chemical Engineering2023，55，3： | 2 |
| 6 | Effect of free-end torsion on microstructure and mechanical properties of AZ31 bars with square section显示文摘In this study,a rolled AZ31 bar with square section was used.The reciprocating torsion was performed to maintain the shape of the sample.The microstructure evolution of AZ31 bar during torsion and its influence on compressive anisotropy were investigated in detail.Results showed that reciprocating torsion can simultaneously enhance yield strength in three compressive directions,and reduce compressive anisotropy.Reciprocating torsion generated profuse dislocations and{10–12}twin boundaries to harden the micro-hardness and yield strength.Reciprocating torsion can also generate new texture component which is mainly from the orientation of newly generated{10–12}twins.The new twin-structures will be responsible for the reduction in compressive anisotropy.Moreover,uneven deformation features in twisted sample were systematically investigated. | Bo Song Zhiwen Du Ning Guo Qingshan Yang Fang Wang Shengfeng Guo Renlong Xin | 2021 | Journal of Materials Science & Technology2021，，10： | 2 |
| 7 | Examination of dynamic recrystallization during compression of AZ31 magnesium显示文摘This study aimed to investigate dynamic recrystallization (DRX) behavior during compression of magnesium alloy AZ31. Cylinder samples were cut from the extruded rod and hot rolled sheet AZ31 for compression test. The samples were compressed using a Gleeble 1500D at a temperature of 300℃ and a strain rate of 0.01 s-1. Grain orientations and misorientation angles across grain boundaries for the tested samples were obtained by using electron backscatter diffraction (EBSD) technique. The results showed that strong basal texture was observed after 50% compression (ε = 0.69) on both the extruded and hot rolled samples, which have different initial textures. It was observed that with increased strain, DRX grains gradually rotated to basal orientation, and grain boundaries with misorientation angle of near 30° was formed in the samples. At the strain of 0.69, a high fraction of high-angle (> 60°) bounda-ries was present in the extruded sample, whereas almost no high angle boundaries were observed in the hot rolled sheet sample. | XIN RenLong WANG BingShu CHEN XingPin HUANG GuangJie LIU Qing | 2009 | Science China(Technological Sciences)2009，52，1： | 2 |
| 8 | Energy-saving model for SDN data center显示文摘 | Tu Renlong Wang Xin Yang Yue | 2014 | Supercompute2014，70，3： | 1 |
| 9 | Effect of crystal orientation on the mechanical properties and strain hardening behavior of magnesium alloy AZ31 during uniaxial compression显示文摘 | Bingshu Wang Renlong Xin Guangjie Huang | | 0，，534： | 1 |
| 10 | Biomaterials显示文摘 | Qiyi Zhangab Yang Lenga Renlong Xina | 2005 | 26:28572005，26，： | 1 |
| 11 | Time delay estimation in unknown gaussian spatially correlated noise显示文摘 | Renlong Pan | 1988 | IEEE Transaction on ASSP1988，，11： | 1 |
| 12 | Pomelo Peel-Inspired 3D-Printed Porous Structure for Efficient Absorption of Compressive Strain Energy显示文摘The porous structure in pomelo peel is believed to be responsible for the protection of its fruit from damage during the free falling from a tree.The quantitative understanding of the relationship between the deformation behavior and the porous structure could pave the way for the design of porous structures for efficient energy absorption.Here,a universal feature of pore distribution in pomelo peels along the radial direction is extracted from three varieties of pomelos,which shows strong correlation to the deformation behavior of the peels under compression.Guided by the porous design found in pomelo peels,porous polyether-ether-ketone(PEEK)cube is additively manufactured and possesses the highest ability to absorb energy during compression as compared to the non-pomelo-inspired geometries,which is further confirmed by the finite element simulation.The nature-optimized porous structure revealed here could guide the design of lightweight and high-energy-dissipating materials/devices. | Baisong Yang Wenhui Chen Renlong Xin Xiaohong Zhou Di Tan Chuan Ding You Wu Liang Yin Chuyang Chen Shan Wang Zhenglei Yu Jonathan TPham Sheng Liu Yifeng Lei Longjian Xue | 2022 | Journal of Bionic Engineering2022，19，2： | 1 |
| 13 | 显示文摘 | Zhang Qiyi Leng Yang Xin Renlong | 2005 | Biomaterials2005，26，： | 1 |
| 14 | Evolution mechanism of lamellarαand interlayeredβduring hot compression of TC21 titanium alloy with a widmanst?tten structure显示文摘TC21 titanium alloy,as an important metal to fabricate the aircraft structural components,has attracted great attentions recently.A TC21 titanium alloy with widmanst?tten structure was isothermally compressed.Based on the microstructure observation,the evolution of initialβgrain,Grain Boundaryαphase(α;),lamellar a and interlayeredβwas systematically investigated.The results showed that,with the increasing of height reduction,theα;underwent an evolution process from bending/kinking to breaking inducing the corresponding blurring of initial coarse b grain outline.Meanwhile,a significant phase transformation from a to b took place at the terminations of brokenα;.The evolution of lamellarαand interlayeredβin the colony was closely related to their deformation compatibility.In the a colony,the interlayered b experienced a larger deformation amount than lamellarα.The higher distortion energy promoted the occurrence of Dynamic Recovery(DRV)and Dynamic Recrystallization(DRX)to generate many Low Angle Boundaries(LABs)and High Angle Boundaries(HABs)in interlayered b,which induced an apparent grain refinement of b phase.On the contrary,the lower distortion energy and low deformation temperature suppressed the occurrence of DRV/DRX and restrained the globularization of lamellarα.Furthermore,the microstructure observation clearly revealed that the shearing separation mechanism dominated the evolution of the a phase from lamellar to short bar-like morphology. | Xiaoyu ZHENG Ke WANG Cheng ZHANG Renlong XIN Qing LIU | 2022 | Chinese Journal of Aeronautics2022，35，3： | 1 |
| 15 | Effect of crystal orientation on the mechanical properties and strain hardening behavior of magnesium alloy AZ31 during uniaxial compression显示文摘 | Bingshu Wang Renlong Xin Guangjie Huang Qing Liu | 2012 | Materials Science & Engineering A2012，，： | 1 |
| 16 | A novel fuzzy hybrid quantum artificial immune clustering algorithm based on cloud model显示文摘 | Zhang Renlong Shan Miyuan Liu Xiaohong | 2014 | Engineering Applications of Artificial Intelligence2014，35，2： | 1 |
| 17 | Improving tensile and compressive properties of magnesium alloy plates by pre-cold rolling显示文摘 | Bo Song Renlong Xin Gang Chen Xiyan Zhang Qing Liu | 2012 | Scripta Materialia2012，，12： | 1 |
| 18 | A comparative study of electrochemical deposition and biomimetic depo- sition of calcium phosphate on porous titanium显示文摘 | Qiyi Zhang Yang Leng Renlong Xin | 2005 | Biomaterials2005，26，16： | 1 |
| 19 | Improving tensile and compressive properties of magnesium alloy plates by pre-cold rolling显示文摘 | Bo Song Renlong Xin Gang Chen Xiyan Zhang Qing Liu | 2012 | Scripta Materialia2012，，12： | 1 |
| 20 | Effect of crystal orientation on the mechanical properties and strain hardening behavior of magnesium alloy AZ31 during uniaxial compression显示文摘 | Bingshu Wang Renlong Xin Guangjie Huang Qing Liu | 2012 | Materials Science & Engineering A2012，，： | 1 |
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