A kind of micro/nanostructured 2205 duplex stainless steel(DSS)with uniform distribution of nanocrystals was prepared via aluminothermic reaction method.The analysis of stress-strain curve showed that the fracture str...A kind of micro/nanostructured 2205 duplex stainless steel(DSS)with uniform distribution of nanocrystals was prepared via aluminothermic reaction method.The analysis of stress-strain curve showed that the fracture strength and elongation of the specimen were 946 MPa and 24.7%,respectively.At present,the research on microstructure of bimodal 2205 DSS at room temperature(RT)mainly depended on scanning electron microscope(SEM)observation after loading experiments.The test result indicates that there are two different yield stages in stress-strain curve of specimen during tensile process.The microstructure of duplex bimodal structured stainless steel consists of two pairs of soft hard regions and phases.By studying deformation mechanism of bimodal structured stainless steel,the interaction between soft phase and hard phase are discussed.The principle of composition design and microstructure control of typical duplex stainless steel is obtained,which provides an important research basis for designing of advanced duplex stainless steel.展开更多
太阳能光热发电技术(Concentrating Solar Power,简称CSP),与热储能结合能够满足夜间发电需求,可实现连续、可持续性发电,输出稳定、高品质电能,被认为是目前最具潜力的太阳能开发利用技术。太阳能光热发电集热技术类型,按太阳能集热方...太阳能光热发电技术(Concentrating Solar Power,简称CSP),与热储能结合能够满足夜间发电需求,可实现连续、可持续性发电,输出稳定、高品质电能,被认为是目前最具潜力的太阳能开发利用技术。太阳能光热发电集热技术类型,按太阳能集热方式的不同,分为塔式、槽式、线性菲涅尔和蝶式4种发电类型。我国光热发电开发利用起步晚,但发展迅速,装机容量位居世界第四。分析了我国光热发电技术存在的问题,并对下一步光热发电的开发利用提出展望,降本提效是光热发电技术规模化应用的必然途径,高效储热介质的开发利用成为促进光热发电降本提效的关键。展开更多
基金Funded by the National Natural Science Foundation of China(No.51911530119)the Department of Education of Gansu Province Innovation Fund(No.2021A-023)the Open Fund Project of Key Laboratory of Solar Power System Engineering Project(No.2022SPKL01)。
文摘A kind of micro/nanostructured 2205 duplex stainless steel(DSS)with uniform distribution of nanocrystals was prepared via aluminothermic reaction method.The analysis of stress-strain curve showed that the fracture strength and elongation of the specimen were 946 MPa and 24.7%,respectively.At present,the research on microstructure of bimodal 2205 DSS at room temperature(RT)mainly depended on scanning electron microscope(SEM)observation after loading experiments.The test result indicates that there are two different yield stages in stress-strain curve of specimen during tensile process.The microstructure of duplex bimodal structured stainless steel consists of two pairs of soft hard regions and phases.By studying deformation mechanism of bimodal structured stainless steel,the interaction between soft phase and hard phase are discussed.The principle of composition design and microstructure control of typical duplex stainless steel is obtained,which provides an important research basis for designing of advanced duplex stainless steel.
文摘太阳能光热发电技术(Concentrating Solar Power,简称CSP),与热储能结合能够满足夜间发电需求,可实现连续、可持续性发电,输出稳定、高品质电能,被认为是目前最具潜力的太阳能开发利用技术。太阳能光热发电集热技术类型,按太阳能集热方式的不同,分为塔式、槽式、线性菲涅尔和蝶式4种发电类型。我国光热发电开发利用起步晚,但发展迅速,装机容量位居世界第四。分析了我国光热发电技术存在的问题,并对下一步光热发电的开发利用提出展望,降本提效是光热发电技术规模化应用的必然途径,高效储热介质的开发利用成为促进光热发电降本提效的关键。
