Search Results - "He, Qingkun"

High-performance CrN tight ultrafiltration membranes prepared by in situ gas–solid catalytic reaction by Yan, Qi, Sun, Jinquan, Xue, Yanpeng, Zhao, Guopeng, Liu, Tingting, Liu, Xiaohong, He, Qingkun, Xie, Kun

“…[Display omitted] •CrN ultrafiltration membranes with 121 L/m2·h·bar were successfully prepared.•Preparation process by in-situ gas-solid catalytic reaction at…”
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Post‐rift Tectonic History of the Songliao Basin, NE China: Cooling Events and Post‐rift Unconformities Driven by Orogenic Pulses From Plate Boundaries by Song, Ying, Stepashko, Andrei, Liu, Keyu, He, Qingkun, Shen, Chuanbo, Shi, Bingjie, Ren, Jianye

“…The classic lithosphere‐stretching model predicts that the post‐rift evolution of extensional basin should be exclusively controlled by decaying thermal…”
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Characterization of Heterogeneous Microstructure and Mechanical Properties of Q345R Welded Joints including Roles of the Welding Process by He, Qingkun, Hu, Xiaodong, Sun, Qitong, Dong, Zhilong, Xie, Xuefang, Wang, Han

“…In this paper, the roles of the welding process on the heterogeneous microstructure and mechanical properties of Q345R welded joints were analyzed by a series…”
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The Corrosion Behavior of N80 Steel in Multiple Thermal Fluid Environment Containing O2 and CO2 by Lin, Xueqiang, Luo, Xiaokang, Liu, Wei, Chen, Yufan, Pang, Bo, Guo, Yi, He, Qingkun

“…The corrosion behavior of N80 steel in Multiple thermal fluid environment containing O 2 and CO 2 was analyzed by Scanning Electron Microscopy (SEM),…”
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Ferroan dolomites in Miocene sediments of the Xisha Islands and their genetic model by Xu, Hong, Zhang, Weiwei, Wei, Kai, He, Qingkun, Jiang, Yunshui, Xu, Tingting, Jiang, Xuejun, Yan, Guijing, Song, Hongying, Wang, Jianghai

“…Carbonate rocks are important reservoirs for global petroleum exploration. The largest oilfield in the South China Sea, Liuhua 11-1, is distributed in the…”
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Enhanced surface layers by laser cladding and ion sulfurization processing towards improved wear-resistance and self-lubrication performances by Li, Meiyan, Han, Bin, Song, Lixin, He, Qingkun

“…•Enhanced surface layers were prepared by laser cladding and ion sulfurization.•Structure, phase composition of the composite layer are analyzed.•Hardness and…”
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Numerical simulation and experimental investigation on fracture mechanism of granite by laser irradiation by Li, Meiyan, Han, Bin, Zhang, Shiyi, Song, Lixin, He, Qingkun

“…•Prediction of laser power for laser perforation is presented in this study.•The temperature and stress distributions are simulated.•The fracture mechanism of…”
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Fine structure control of Fe3O4/ Fe2O3 film by Nitridation-Oxidation-Reduction treatment and high corrosion resistance by Zhao, Yibo, Guo, Xianxian, Wang, Dahong, Geng, Lei, He, Qingkun, Wang, Wenjun, Zhang, Lei, Jin, Jiahao, Ma, Duo, Sun, Jinquan

“…•At 440 °C, ammonia can reduce Fe2O3 to Fe3O4 in the oxide layer.•Nitridation-Oxidation-Reduction (NOR) treatment can increase the Fe3O4 content in the oxide…”
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Investigation on rock breaking for sandstone with high power density laser beam by Li, Meiyan, Han, Bin, Zhang, Qi, Zhang, Shiyi, He, Qingkun

“…High power density laser was applied during rock breaking for sandstone with different laser parameters. The fracture morphologies and quantitative…”
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Novel quat/di-N-halamines silane unit with enhanced synergism polymerized on cellulose for development of superior biocidability by Chen, Yong, Wang, Yuyu, Feng, Chunyan, He, Qingkun, Chen, Qi, Wang, Zhendong, Han, Qiuxia

“…A silane unit with enhanced synergism that is realized using one cationic quaternary ammonium salt (QAS) to draw anionic bacteria to two N-halamine…”
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Abrasive resistance and corrosion properties of AISI 316 sieve via low-temperature gaseous nitriding by Wang, Xingwei, Liu, Zhongyu, Chen, Yangyang, Sun, Jinquan, He, Qingkun, Liu, Qiancheng, Liu, Guozhi, Xie, Kun

“…AISI 316 austenitic stainless steel samples were treated via gaseous nitriding at low temperature (430 °C) to obtain a single expanded austenite layer…”
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Preparation of biocidal 4‐ethyl‐4‐(hydroxymethyl)oxazolidin‐2‐one‐based N‐halamine polysiloxane for impregnation of polypropylene in supercritical CO2 by Chen, Yong, He, Qingkun, Ren, Guoyuan, Feng, Chunyan, Li, Na, Yu, Hao, Han, Qiuxia

“…ABSTRACT A cyclic N‐halamine precursor, 4‐ethyl‐4‐(hydroxymethyl)oxazolidin‐2‐one (EHMO), was synthesized and attached to poly(methylhydrosiloxane) (PMHS)…”
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Construction of pyridinium/N-chloramine polysiloxane on cellulose for synergistic biocidal application by Chen, Yong, Ma, Yijia, He, Qingkun, Han, Qiuxia, Zhang, Qiang, Chen, Qi

“…Cotton cellulose was modified with polysiloxane with dual antimicrobial groups of pyridinium and N -chloramine (N-Cl) to endorse enhanced synergistic biocidal…”
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Influence of laser parameters on graphite morphology in the bonding zone and process optimization in gray cast iron laser cladding by Yi, Peng, Zhan, Xianghua, He, Qingkun, Liu, Yancong, Xu, Pengyun, Xiao, Peifa, Jia, Delong

“…•The carbon atoms diffusion and the graphite refining mechanism were analyzed.•The influences of laser power and scanning speed on graphite were…”
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Failure analysis of T15 medical orthopedic S46500 stainless steel screwdriver by Zhao, Yibo, Guo, Xianxian, Yao, Jianqing, Geng, Lei, He, Qingkun, Zhang, Lei, Ma, Duo, Jin, Jiahao, Wang, Wenjun, Sun, Jinquan

“…•The original banded structure affects the mechanical properties of the workpiece.•Milling leads to material accumulation, work-hardened layers and stress…”
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Green preparation of silver coating on AISI 304 stainless steel surface by Ag nanocrystalline in-situ growth and the wear resistance by Liu, Guozhi, Gao, Xiang, He, Qingkun, Wang, Xingwei, Liu, Qiancheng, Liu, Zhongyu, Xie, Kun, Sun, Jinquan

“…•Silver coating has been obtained by Ag nanocrystalline in-situ growth.•The middle diffusion layer enhances interface bonding strength.•The interface bonding…”
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16MnCr5 gear shaft fracture caused by inclusions and heat treatment process by Cai, Sai, Sun, Jinquan, He, Qingkun, Shi, Tong, Wang, Dongrui, Si, Jinwei, Yang, Jie, Li, Fujie, Xie, Kun, Li, Min

“…•The surface hardness of carburizing quenching hardening layer is low.•Non-martensite microstructure is formed after heat treatment.•The presence of inclusions…”
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Failure analysis and improvement measures for crankshaft connecting rod of refrigerator compressor by Wang, Dongrui, Sun, Jinquan, He, Qingkun, Si, Jinwei, Shi, Tong, Li, Fujie, Yang, Jie, Xie, Kun, Li, Wensheng, Ge, Feng

“…•Failure analysis of refrigerator compressor crankshaft was studied.•Serious abrasive wear has occurred on the surface of the crankshaft.•The failure of the…”
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Strong effect of carbides and alloy elements in gradient nanostructured 32Cr2Mo1VE steel on nitrogen atom diffusion by Cai, Sai, Sun, Jinquan, Xue, Yanpeng, He, Qingkun, Huan, Jie, Shi, Tong, Si, Jinwei, Wang, Dongrui, Xie, Kun

“…Metal surface nanocrystallization can improve the surface activity, reduce the diffusion activation energy, and then reduce the diffusion temperature or time…”
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Failure analysis of truck steering knuckle by Li, Fujie, Sun, Jinquan, Bao, Jianqi, Yang, Jie, Li, Haotian, Zhong, Chongyang, Gao, Yuchao, He, Qingkun, Xie, Kun, Li, Wensheng

“…•Hard spots (caused by speckle segregation) and surface defects (caused by porosity) lead to stress concentrations that form crack sources.•Axial cracks, pores…”
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