Download or read book Grain Boundary Phosphorus Segregation Under Irradiation and Thermal Aging and Its Effect on the Ductile to Brittle Transition written by S. Song and published by . This book was released on 2001 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Embrittlement of low-alloy steel components used in the nuclear power industry is classified into hardening embrittlement and non-hardening embrittlement. Hardening embrittlement stems from precipitation of carbides or copper-rich compounds. Non-hardening embrittlement results mainly from grain boundary segregation of phosphorus. To examine the non-hardening embrittlement in 2.25Cr 1Mo steel, phosphorus intergranular segregation in samples subjected to neutron irradiation and thermal aging at 270°C and 400°C is determined by modelling and transmission electron microscopy. The ductile-to-brittle transition temperature for the steel is determined by means of small punch testing with 3 mm diameter disc specimens. It is indicated that there is a reasonable agreement between the behavior of intergranular phosphorus segregation and shifts in the ductile-to-brittle transition temperature. Measured and predicted phosphorus intergranular segregation in a range of pressure vessel steels is also discussed.

Download or read book Grain boundary engineering of phosphorus segregation in steels written by Monika Jenko and published by . This book was released on 2003 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modeling of Phosphorus Accumulation on Grain Boundaries in Iron Alloys Under Irradiation written by IA. Stepanov and published by . This book was released on 2001 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kinetics of phosphorus accumulation on grain boundaries (GB) in iron-based alloys is treated theoretically, taking into account both the radiation-induced segregation (RIS) in the matrix and the Gibbsian adsorption (GA) at GB. For steady-state conditions analytical expressions are derived for component profiles near GB and component concentrations on GB. Modeling of phosphorus accumulation at GB in iron alloys is carried out using two different models: 1) the McLean's model generalized to take into account the radiation-enhanced phosphorus diffusion via vacancy and interstitial mechanisms as well as RIS near GB, 2) a model of RIS in a ternary Fe-P-Ni alloy accounting for the binding energy of phosphorus atoms with interstitials as well as a possibility of high phosphorus content near GB at high irradiation doses. Predictions of modeling are analyzed regarding the dependence on temperature, dose and Fe and P diffusion parameters available for iron alloys. It is shown that the GB phosphorus concentration calculated as a function of temperature reveals one or two maxima depending on dose and the choice of material parameters.

Download or read book THERMEC 2016 written by C. Sommitsch and published by Trans Tech Publications Ltd. This book was released on 2016-11-15 with total page 2720 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the proceedings of the 9-th International Conference on Processing and Manufacturing of Advanced Materials – THERMEC’2016, which took place between May 29 and June 3, 2016 in Graz, Austria, under the co-sponsorship of The Minerals, Metals & Materials Society (TMS), USA. The Conference was also under the international auspices of professional organizations from Japan, Korea, France, Italy, The Netherlands, Germany, Brazil, Austria, India, and Canada. The Conference was intended to bring together the researchers and engineers/technologists working in different aspects of processing, fabrication, structure/property evaluation and applications of both ferrous and nonferrous materials including biomaterials, and smart/intelligent materials as well as the advanced characterisation techniques. In addition to the contributed papers, the conference committee included in the final program the invited presentations by active researchers from various countries in several topic areas covered at THERMEC’2016.

Download or read book Ferrous Powder Metallurgy written by Andrej Šalak and published by Cambridge International Science Publishing. This book was released on 1995 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of the position of ferrous powder metallurgy, the author deals with the theoretical fundamentals and technical and technological aspects of the current state of knowledge in ferrous powder metallurgy so that special attention may be given to all factors influencing parts and materials with the required properties, form and dimensions, stressing their higher economic efficiency. The book also shows the extensive possibilities for further development of ferrous powder metallurgy and should therefore contribute to increasing the level of general and detailed knowledge of experts working in this area and should help in transition from fabrication of parts by conventional methods with all typical economic and ecological shortcomings to fabrication by powder metallurgy methods.

Download or read book Gas pressure Bonding written by S. J. Paprocki and published by . This book was released on 1961 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Integrity of Reactor Pressure Vessels in Nuclear Power Plants written by and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication is intended to assist nuclear utilities in optimizing the service life of nuclear power plants. It reviews the latest research on the effects of neutron irradiation on the steels and welds of reactor pressure vessels within light water cooled and moderated reactors.

Download or read book Bioceramics 15 written by Besim Ben-Nissan and published by Trans Tech Publications Ltd. This book was released on 2003-05-15 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume is indexed by Thomson Reuters CPCI-S (WoS). Since their inception Bioceramics meetings have provided a treasure house of information for both scientists and clinicians in the medical field. The clinical applications are numerous, in particular in the areas of orthopaedics, maxillofacial, plastic and ocular surgery, percutaneous devices, tissue engineering and sensors. This volume in addition to research papers contributed also presents selected overviews and discussions on recent bioceramics research and trends.

Download or read book Nontraditional Methods in Diffusion written by G. E. Murch and published by . This book was released on 1984 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aws D3 6m written by American Welding Society and published by . This book was released on 2017-04-28 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Physics of Welding written by J. F. Lancaster and published by Elsevier. This book was released on 2013-10-22 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Physics of Welding, Second Edition covers advances in welding physics. The book describes symbols, units and dimensions; the physical properties of fluids at elevated temperatures; and electricity and magnetism. The text also discusses fluid and magneto fluid dynamics; the electric arc; and the electric arc in welding. Metal transfer and mass flow in the weld pool, as well as high power density welding are also tackled. Students interested in welding physics will find the book useful.

Download or read book Annual Report 1985 written by United States. Presidential Advisory Committee on Small and Minority Business Ownership and published by . This book was released on 1986 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Guide to the Welding and Weldability of Cryogenic Steels written by International Institute of Welding and published by Woodhead Publishing. This book was released on 1987-01-01 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book AWS A5 5 A5 5M 2006 Specification for Low Alloy Steel Electrodes for Shielded Metal Arc Welding written by American Welding Society and published by . This book was released on 2006-01-01 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Steels written by Yuqing Weng and published by Springer Science & Business Media. This book was released on 2011-04-14 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Advanced Steels: The Recent Scenario in Steel Science and Technology" contains more than 50 articles selected from the proceedings of the International Conference on Advanced Steels (ICAS) held during 9-11, Nov, 2010 in Guilin, China. This book covers almost all important aspects of steels from physical metallurgy, steel grades, processing and fabrication, simulation, to properties and applications. The book is intended for researchers and postgraduate students in the field of steels, metallurgy and materials science. Prof. Yuqing Weng is an academician of Chinese Academy of Engineering and the president of The Chinese Society for Metals. Prof. Han Dong is the vice president of Central Iron & Steel Research Institute and the director of National Engineering Research Center of Advanced Steel Technology, China. Prof. Yong Gan is an academician of Chinese Academy of Engineering, the vice president of Chinese Academy of Engineering and the president of Central Iron & Steel Research Institute, China.

Download or read book Structural Characterization Techniques written by Lorenzo Malavasi and published by CRC Press. This book was released on 2016-10-14 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents state-of-the-art contributions related to advanced structural characterization techniques in the field of clean energy materials with particular emphasis on solid oxide fuel cells and hydrogen storage materials. It describes several diffraction and spectroscopic techniques for the investigation of both average and local structures with several examples of the most recent materials for clean energy applications. It is the first authoritative collection of contributions on the importance of the application of the most advanced structural techniques to shed light on the properties and mechanisms of materials currently investigated for the use in alternative energy devices. The book provides key techniques for ex situ and in situ investigation of clean energy materials and, hence, is an essential guide for researchers working on the structural analysis of advanced materials.