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Microstructure and deformation mechanism of dual-phase Al_(0.5)CoCrNiFe high-entropy alloy

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Rare Metals 2023年第6期42卷 2020-2027页

作者： Yong-Gang Tong nan Tian Hong-Feng Huang Zhi-Bin Zhang Xiu-Bing Liang Xi-Xi Ji Jing-Zhong fang Yong-Le Hu College of Automotive and mechanical engineering Changsha University of Science and TechnologyChangsha410114China key laboratory of New processing technology for Nonferrous Metal and materials Guilin University of TechnologyMinistry of EducationGuilin541004China national Institute of Defense technology Innovation Academy of Military Sciences PLA ChinaBeijing100071China

Dual-phase high-entropy alloys containing facecentered cubic(fcc) and body-centered cubic(bcc) phases achieve a combination of high strength and high ductility,which attract extensive *** with singlephase high-entropy alloys,the dual-phase structure generates more complex deformation mechanisms such as structural transformation and interactions between grain boundaries and dislocations during *** order to understand the structural transformation of the dual-phase high-entropy alloy during deformation and its effect on mechanical properties,Al_(0.5)CoCrNiFe high-entropy alloy was prepared and its deformation mechanism was investigated by molecular dynamics simulations combined with *** results show that phase transformation occurred during deformation,and dislocation slip was the main deformation *** addition,there was significant dislocation pile-up at the interface between fcc and bcc phases after tensile *** and strain rates significantly affected the mechanical properties and deformation behavior of high-entropy *** low temperature and high strain rate,the dislocation density of the alloy increases after stretching,resulting in the enhancement of tensile strength.

关键词： Dual-phase high-entropy alloy(HEA) Microstructure Deformation behavior Dislocation

Waveform simulation in PandaX-4T

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Chinese Physics C 2024年第7期48卷 1-13页

作者：李家富阿卜杜萨拉姆薄子豪陈葳谌勋程晨成赵侃崔祥仪樊英杰方德清耿立升 Karl Giboni 郭绪元韩晨成韩柯何昶达何金荣黄迪黄俊挺黄周侯汝全侯钰季向东巨永林李晨翔李名川李帅杰李涛林箐刘江来陆聪聪芦晓盈罗棱尹罗云阳马文博马余刚冒亚军孟月宁旭阳庞彬宇祁宁春钱志成任祥祥 nasir Shaheed 尚晓凤邵熙元申国防司琳孙文良谈安迪陶奕王安庆王萌王秋红王少博王思广王为王秀丽王旭王舟魏月环武蒙蒙邬维浩吴渊肖梦姣肖翔燕斌斌阎玺宇杨勇喻纯旭袁影苑哲运有辉曾鑫宁张敏桢张鹏张世博张澍张涛张威张洋张瀛心张园园赵力周济芳周宁周小朋周永周钰博周知震 School of Physics and Astronomy Shanghai Jiao Tong UniversityKey Laboratory for Particle Astrophysics and Cosmology(MoE)Shanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China State key laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China department of Modern Physics University of Science and Technology of ChinaHefei 230026China School of Physics Beihang UniversityBeijing 102206China International Research Center for Nuclei and Particles in the Cosmos&beijing key laboratory of advanced Nuclear materials and Physics Beihang UniversityBeijing 100191China School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China School of Physics Peking UniversityBeijing 100871China Yalong River Hydropower Development Company Ltd.288 Shuanglin RoadChengdu 610051China Research Center for Particle Science and technology Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China key laboratory of Particle Physics and Particle Irradiation of ministry of education Shandong UniversityQingdao 266237China department of Physics University of MarylandCollege ParkMaryland 20742USA Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai200240China School of mechanical engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Physics Sun Yat-Sen UniversityGuangzhou 510275China Sino-French Institute of Nuclear engineering and technology Sun Yat-Sen UniversityZhuhai 519082China School of Physics and Astronomy Sun Yat-Sen UniversityZhuhai 519082China School of Physics Nankai UniversityTianjin 300071China key laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China Shanghai Jiao Tong university Sichuan Research Institute Chengdu 610213China SJTU Paris Elite Institute of technology Shanghai Jiao Tong UniversityShanghai 200240China department of Physics Yantai UniversityYantai 264005Ch

Signal reconstruction through software processing is a crucial component of the background and signal models in the PandaX-4T experiment,which is a multi-tonne dark matter direct search *** accuracy of signal reconstruction is influenced by various detector artifacts,including noise,dark count of photomultiplier,photoionization of impurities in the detector,and other relevant *** this study,we presented a detailed description of a semi-data-driven approach designed to simulate a signal *** work provides a reliable model for the efficiency and bias of the signal reconstruction in the data analysis of *** comparing critical variables that relate to the temporal shape and hit pattern of the signals,we found good agreement between the simulation and data.

关键词： dark matter time projection chamber simulation

激光熔覆Inconel718合金涂层与基体界面的组织及力学性能

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中国机械工程 2019年第17期30卷 2108-2113页

作者：方金祥王玉江董世运徐滨士闫世兴宋超群舒凤远何鹏贵州大学现代制造技术教育部重点实验室贵阳550025 陆军装甲兵学院装备再制造技术国防科技重点实验室北京100072 哈尔滨工业大学先进焊接与连接国家重点实验室哈尔滨150001

研究了激光熔覆Inconel718合金涂层与基体界面的微观组织及力学性能,结果表明:由于强化相的溶解,热影响区的硬度及强度降低,典型激光熔覆工艺条件下,扫描速度越快,热影响区越窄;熔覆层底部无平面晶组织,熔合区结合致密,化学成分一致,组... 详细信息

研究了激光熔覆Inconel718合金涂层与基体界面的微观组织及力学性能,结果表明:由于强化相的溶解,热影响区的硬度及强度降低,典型激光熔覆工艺条件下,扫描速度越快,热影响区越窄;熔覆层底部无平面晶组织,熔合区结合致密,化学成分一致,组织过渡平滑,熔覆层内部为枝晶组织,晶间有较多的Laves相,硬度较热影响区高;时效热处理后,热影响区及熔覆层的强度接近原始基材,界面区域力学性能过渡的平滑性改善。

关键词：激光熔覆热影响区界面 Inconel718合金