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Hot Deformation Behavior and Workability of a New Ni–W–Cr Superalloy for Molten Salt Reactors

Acta Metallurgica Sinica(English Letters) 2024年第8期37卷 1453-1466页

作者： Long Liu Zijian Zhou Jie Yu xinguang wang Chuanyong Cui Rui Zhang Yizhou Zhou Xiaofeng Sun Shi‑Changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China Fushun Special Steel Co. LtdFushun 113000China

The hot deformation behavior of a newly developed Ni–W–Cr superalloy for use in 800℃molten salt reactors(MSRs)was looked into by isothermal compression tests in the temperature range of 1050–1200℃with a strain rate of 0.001–1 s^(−1)under a true strain of *** Arrhenius-type model for the Ni–W–Cr superalloy was constructed by fitting the corrected flow stress *** this model,the effect of dispersion of solid solution elements during thermal deformation on microstructure evolution was considered,as well as the effects of friction and adiabatic heating on the temperature and strain rate-dependent variation of flow *** hot deformation activation energy of the Ni–W–Cr superalloy was 323 kJ/mol,which was less than that of the Hastelloy N alloy(currently used in MSRs).According to the rectified flow stress data,processing maps were *** conjunction with the corresponding deformation microstructures,the flow instability domains of the Ni–W–Cr superalloy were determined to be 1050–1160℃/0.03–1 s^(−1)and 1170–1200℃/0.001–0.09 s^(−1).In these deformation conditions,a locally inhomogeneous microstructure was caused by flow-i.e.,incomplete dynamic recrystallization and hot working parameters should avoid sliding into these *** ideal processing hot deformation domain for the Ni–W–Cr superalloy was determined to be 1170–1200℃/0.6–1 s^(−1).

关键词： Ni-W-Cr Superalloy Hot deformation behavior Constitutive equation Processing map Microstructure evolution

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Properties of focused Laguerre–Gaussian beam propagating in anisotropic ocean turbulence

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Chinese Physics B 2024年第2期33卷 386-393页

作者：王新光马洋斌袁邱杰陈伟王乐赵生妹 College of Science Nanjing University of Posts and TelecommunicationsNanjing 210003China Institute of Signal Processing and Transmission Nanjing University of Posts and TelecommunicationsNanjing 210003China Key Lab of Broadband Wireless Communication and Sensor Network Technology(Ministry of Education) Nanjing University of Posts and TelecommunicationsNanjing 210003China National Laboratory of Solid State Microstructures Nanjing UniversityNanjing 210093China

We analyze the properties of a focused Laguerre–Gaussian(LG)beam propagating through anisotropic ocean turbulence based on the Huygens–Fresnel *** the Rytov approximation theory,we derive the analytical formula of the channel capacity of the focused LG beam in the anisotropic ocean turbulence,and analyze the relationship between the capacity and the light source parameters as well as the turbulent ocean *** is found that the focusing mirror can greatly enhance the channel capacity of the system at the geometric focal plane in oceanic *** results also demonstrate that the communication link can obtain high channel capacity by adopting longer beam wavelength,greater initial beam waist radius,and larger number of transmission ***,the capacity of the system increases with the decrease of the mean squared temperature dissipation rate,temperature-salinity contribution ratio and turbulence outer scale factor,and with the increase of the kinetic energy dissipation rate per unit mass of fluid,turbulence inner scale factor and anisotropy *** to a Hankel–Bessel beam with diffraction-free characteristics and unfocused LG beam,the focused LG beam shows superior anti-turbulence interference properties,which provide a theoretical reference for research and development of underwater optical communication links using focused LG beams.

关键词： vortex beam orbital angular momentum focusing mirror anisotropic turbulence

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共同机构投资者与企业财务风险衍化

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商业研究 2024年第1期 103-110页

作者：盛灵王新光南京师范大学数学科学学院南京210023 南京师范大学商学院南京210023

在企业财务风险衍化趋势愈发明显的背景下,共同机构投资者作为资本市场上企业间的经济关联,其能否在持股企业中发挥作为生产要素的积极作用暂无定论。本文以2008—2021年中国沪深A股上市企业为样本,提出了协同治理假说与私利合谋假说,... 详细信息

在企业财务风险衍化趋势愈发明显的背景下,共同机构投资者作为资本市场上企业间的经济关联,其能否在持股企业中发挥作为生产要素的积极作用暂无定论。本文以2008—2021年中国沪深A股上市企业为样本,提出了协同治理假说与私利合谋假说,系统考察了共同机构投资者对企业财务风险衍化的影响。实证结果表明,共同机构投资者对企业财务风险衍化具有显著的抑制作用,支持了协同治理假说。作用机制检验发现,共同机构投资者通过代理冲突缓解抑制了财务风险衍化。异质性分析表明,市场化水平、环境不确定性以及CEO所有权均会对共同机构投资者对企业财务风险衍化的影响产生异质性效果。

关键词：共同机构投资者财务风险衍化代理成本

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基于改进模糊综合评判法的断层封堵性综合评价

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地球科学 2024年第3期49卷 1144-1153页

作者：张翥严恒汪新光高凌李金池中海石油(中国)有限公司海南分公司海南海口570312 中海石油(中国)有限公司湛江分公司广东湛江524057

断层封堵评价分为垂向封堵评价和侧向封堵评价.前人多采取综合模糊评价法综合评价断层封堵性,模糊综合评判法的评价结果受评价分值和权重系数影响,传统综合评判法的各参数评价分值通过最大隶属度原则获取,忽视了同一类评价标准的内部差... 详细信息

断层封堵评价分为垂向封堵评价和侧向封堵评价.前人多采取综合模糊评价法综合评价断层封堵性,模糊综合评判法的评价结果受评价分值和权重系数影响,传统综合评判法的各参数评价分值通过最大隶属度原则获取,忽视了同一类评价标准的内部差异,精度较低,且权重系数采取经验赋值或同等权重赋值,与实际区域地质环境有所出入.本次研究综合考虑断层力学背景、岩性对置关系、断储配置关系等定性参数,结合断层岩泥质含量、断面正压力、断储排替压力及断层应力特征等定量参数的影响,实现了参数的评价标准定量化分值表示;且基于区域各项参数统计分析,各项参数权重系数的确定通过层次分析法予以改进,权重系数更符合区域规律.选择涠西南凹陷二号断裂带A块潜力目标作为靶区,运用该方法进行评价,取得了较好效果;与前人研究方法对比,精度存在显著提高.

关键词：垂向-侧向断层封堵性综合定量评价层次分析法二号断裂带储层评价石油地质

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Bessel–Gaussian beam-based orbital angular momentum holography

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Chinese Physics B 2024年第1期33卷 407-413页

作者：季佳滢郑志刚朱家龙王乐王新光赵生妹 Institute of Signal Processing and Transmission Nanjing University of Posts and TelecommunicationsNanjing 210003China Key Laboratory of Broadband Wireless Communication and Sensor Network Technology Ministry of EducationNanjing 210003China National Laboratory of Solid State Microstructures Nanjing UniversityNanjing 210093China

Orbital angular momentum(OAM), as a new degree of freedom, has recently been applied in holography *** to the infinite helical mode index of OAM mode, a large number of holographic images can be reconstructed from an OAM-multiplexing hologram. However, the traditional design of an OAM hologram is constrained by the helical mode index of the selected OAM mode, for a larger helical mode index OAM mode has a bigger sampling distance, and the crosstalk is produced for different sampling distances for different OAM modes. In this paper, we present the design of the OAM hologram based on a Bessel–Gaussian beam, which is non-diffractive and has a self-healing property during its propagation. The Fourier transform of the Bessel–Gaussian beam is the perfect vortex mode that has the fixed ring radius for different OAM modes. The results of simulation and experiment have demonstrated the feasibility of the generation of the OAM hologram with the Bessel–Gaussian beam. The quality of the reconstructed holographic image is increased, and the security is enhanced. Additionally, the anti-interference property is improved owing to its self-healing property of the Bessel-OAM holography.

关键词： orbital angular momentum holography Bessel–Gaussian beam OAM-multiplexing hologram

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船用盐水装卸臂在镇江宝龙码头的改造使用

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盐科学与化工 2024年第9期53卷 51-54页

作者：王新光刘欢中盐镇江盐化有限公司江苏镇江212114

中盐镇江盐化有限公司宝龙码头原有盐水装卸臂至今使用多年已不能满足实际发运需求,文章分析了原因,制定了改造方案并组织实施,同时介绍了改造后取得的成果。

关键词：改造原因技术分析技术改造

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防护工程复合埋管式热泵系统性能分析

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陆军工程大学学报 2024年第2期3卷 71-79页

作者：宋信明王婧茅靳丰任福胜葛秀丽王新广 66469部队北京100042 陆军工程大学国防工程学院江苏南京210007

防护工程内信息化设备散热量大,余热会导致工程内部温度升高、设备失效甚至瘫痪。结合垂直埋管运行高效和水平埋管成本低廉的优势,采用复合埋管式地源热泵系统处理工程内余热以及口部潮湿问题,计算工程内通信机房和办公大厅的全年逐时负... 详细信息

防护工程内信息化设备散热量大,余热会导致工程内部温度升高、设备失效甚至瘫痪。结合垂直埋管运行高效和水平埋管成本低廉的优势,采用复合埋管式地源热泵系统处理工程内余热以及口部潮湿问题,计算工程内通信机房和办公大厅的全年逐时负荷;利用TRNSYS仿真软件构建复合埋管式与垂直埋管式热泵系统模型,比较复合埋管式热泵系统与传统的垂直埋管式热泵系统的热性能、经济效益及防潮效果。结果表明,在工程口部设定水平地埋管可有效降低口部空气相对湿度,起到防潮防湿的作用;在复合埋管式热泵系统总性能系数(coefficient of performance,COP)更高的前提下,复合埋管式热泵系统的总成本较垂直埋管式热泵系统降低了21.8%。

关键词：防护工程复合埋管式热泵系统动态建模数值模拟

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Comments on National guidelines for diagnosis and treatment of breast cancer 2022 in China (English version)

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Chinese Journal of Cancer Research 2022年第5期34卷 451-452页

作者： xinguang wang Zhaoqing Fan Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing) Breast CenterPeking University Cancer Hospital&InstituteBeijing 100142China

China is facing growing number of cancer cases and deaths,as well as growing crude incidence and mortality of *** cancer is the most common cancer type in females in China and the incidence rate for breast cancer in Chinese females has increased during the last two ***, breast cancer prognosis in China is poorer than that in developed countries. Population aging may at least partially explain the transition of cancer profiles we have seen in recent years. Breast cancer screening technologies and public healthcare strategies targeting the high-risk population are being developed to reduce the cancer burden in China.

关键词： breast diagnosis Breast

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A review on the coordinative structure of human walking and the application of principal component analysis

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Neural Regeneration Research 2013年第7期8卷 662-670页

作者： xinguang wang Nicholas O'Dwyer Mark Halaki Discipline of Exercise and Sport Science The University of Sydney School of Science and Health The University of Western Sydney School of Human Movement Studies Charles Sturt University

Walking is a complex task which includes hundreds of muscles, bones and joints working together to deliver smooth movements. With the complexity, walking has been widely investigated in order to identify the pattern of multi-segment movement and reveal the control mechanism. The degree of freedom and dimensional properties provide a view of the coordinative structure during walking, which has been extensively studied by using dimension reduction technique. In this paper, the studies related to the coordinative structure, dimensions detection and pattern reorganization during walking have been reviewed. Principal component analysis, as a popular technique, is widely used in the processing of human movement data. Both the principle and the outcomes of principal component analysis were introduced in this paper. This technique has been reported to successfully reduce the redundancy within the original data, identify the physical meaning represented by the extracted principal components and discriminate the different patterns. The coordinative structure during walking assessed by this technique could provide further information of the body control mechanism and correlate walking pattern with injury.

关键词： neural regeneratJon reviews human walking coordinative structure pattern, synergy principalcomponent analysis dimension reduction gender walking speed correlation linear systemanalysis coherence neuroregeneration

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一种第四代镍基单晶高温合金的同相位热机械疲劳行为及损伤机制

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金属学报 2024年第2期60卷 154-166页

作者：谭子昊李永梅王新广赵浩川谭海兵王标李金国周亦胄孙晓峰中国科学院金属研究所、师昌绪先进材料创新中心沈阳110016 中国科学技术大学材料科学与工程学院沈阳110016 中国航发四川燃气涡轮研究院成都610500

热机械疲劳是单晶高温合金在实际服役过程中的一种重要损伤模式,澄清合金的热机械疲劳行为及损伤机制对于提升单晶高温合金的服役可靠性具有重要意义。本工作以先进航空发动机高压涡轮叶片用第四代单晶高温合金DD91为对象,采用SEM、EBSD... 详细信息

热机械疲劳是单晶高温合金在实际服役过程中的一种重要损伤模式,澄清合金的热机械疲劳行为及损伤机制对于提升单晶高温合金的服役可靠性具有重要意义。本工作以先进航空发动机高压涡轮叶片用第四代单晶高温合金DD91为对象,采用SEM、EBSD、TEM等手段研究了合金在600~1000℃下的同相位热机械疲劳断裂特征及损伤机理。结果表明,随应变幅的升高,合金的疲劳寿命大幅下降,迟滞曲线明显张开,且应力响应行为由高温半周循环软化和低温半周循环硬化转变为以循环稳定为主导的特征。在不同应变幅下疲劳断裂后,合金断口呈韧性断裂特征,随应变幅的升高,韧窝区面积分数不断下降。在低应变幅下,合金主要承受氧化损伤,并伴随一定程度的蠕变损伤,合金的主要变形机制为位错在γ基体中滑移,并以Orowan机制绕过γ’强化相;而在高应变幅下,合金承受严重的塑性变形损伤而氧化损伤程度减轻,此时界面位错能够以生成层错或反相畴界的形式切割γ’相。另外,合金在不同应变幅下循环至断裂后,均未出现再结晶晶粒和变形孪晶。

关键词：第四代单晶高温合金热机械疲劳断裂特征氧化行为损伤机制

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