Relevant bibliographies by topics / Forging pressure

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Forging pressure'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "Forging pressure"

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Zwierzchowski, M. "Factors Affecting the Wear Resistance of Forging Tools." Archives of Metallurgy and Materials 62, no. 3 (2017): 1567–76. http://dx.doi.org/10.1515/amm-2017-0240.

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AbstractThe durability of forging tools is a function of many variables: tool heat treatment, surface quality, temperature, pressure, number of forgings, diffusion layers (nitriding) and many others. The objective of study was to analyze and compare the working conditions of forging tools. For the analysis of selected flat surfaces of tools. Analyzed forging dies subjected to normal use. Presented results of laboratory tests . The effect of temperature and time on the properties of the surface layer of forging tools. The results were compared with the literature data. This article shows the re
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Ma, Bao Cong, and Xiang Ke Tian. "The Application and Research on Manufacturing Technology of the Heavy Forging." Advanced Materials Research 941-944 (June 2014): 1692–95. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.1692.

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For large forging is high-tech product of material, smelting, forging, heat treatment and it is the bottleneck which restricts the development of the modern heavy equipment manufacturing industry. The key technology such as forging and heat treatment of large forgings is researched. Finally, with the ultra supercritical power generation units of low-pressure rotor, the production process control technology such as smelting, forging and heat treatment is introduced. The method provides a reliable basis for the localization of production of ultra supercritical steam turbine rotor and has the imp
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Choe, Kyeong Hwan, Gue Serb Cho, Kyong Whoan Lee, Ki Young Kim, and Myung Ho Kim. "Hot Forging of Semi Solidified High Strength Brass." Solid State Phenomena 116-117 (October 2006): 791–94. http://dx.doi.org/10.4028/www.scientific.net/ssp.116-117.791.

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The name “high strength brass” is given to the wrought and cast alloys indicating their particular virtue of high strength, which can be achieved by additions of Al, Fe, Mn and Sn. Forgings made from copper base alloys offer a number of advantages over products made by other processes. However, because for forging more heat must be applied to the ingot which was solidified once, there are some disadvantages in the economy of energy and time. In this study, we investigated the microstructures and mechanical properties of high strength brass made by semi solid forging and compared them with thos
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Wang, J., F. Gao, and Y. Zhang. "Intelligent Control of a Novel Hydraulic Forging Manipulator." Journal of Robotics 2011 (2011): 1–7. http://dx.doi.org/10.1155/2011/530247.

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The increased demand for large-size forgings has led to developments and innovations of heavy-duty forging manipulators. Besides the huge carrying capacity, some robot features such as force perception, delicacy and flexibility, forging manipulators should also possess. The aim of the work is to develop a heavy-duty forging manipulator with robot features by means of combination of methods in mechanical, hydraulic, and control field. In this paper, through kinematic analysis of a novel forging manipulator, control strategy of the manipulator is proposed considering the function and motion of f
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Chen, Yan, Song Wei Wang, Hong Wu Song, and Shi Hong Zhang. "Forging Process Design and Simulation Optimization of a Complex-Shaped Aluminium Alloy Component." Materials Science Forum 941 (December 2018): 784–89. http://dx.doi.org/10.4028/www.scientific.net/msf.941.784.

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In order to meet the requirements of lightweight and replace steel with the aluminum for a component on the high speed rail, the forging process of a complex-shaped aluminum alloy component was researched and the parameters were optimized with the DEFORM-3D finite element simulation technology. The qualified products were finally obtained instead of the original steel castings by reducing weight of 65%. It is noted that the parts with complicated shape and non-symmetry, metal flow uneven during forging process that lead to incomplete forming, higher forging pressure problems. In this paper, su
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Sadeghi, M. H. "Gear Forging: Mathematical Modeling and Experimental Validation." Journal of Manufacturing Science and Engineering 125, no. 4 (2003): 753–62. http://dx.doi.org/10.1115/1.1616952.

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A useful facility to the adaptation of precision gear forging by industry, is a quick method of load and flow predictions. In this work, the process of precision forging spur and helical gears is modeled by means of an upper bound analysis. A new velocity field, which includes bulging of the tooth form, is proposed and a computerized incremental procedure for the prediction of the bulged surface profile of the teeth, the forging load, and its increase due to corner filling is presented. The effect of workpiece/die interface friction, gear module, numbers of teeth, helix angle, gear height and
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Peng, Yong, Shun Cheng Wang, Hai Tao Zhou, Kai Hong Zheng, and He Xing Chen. "Microstructure and Mechanical Properties of a 6061 Aluminum Alloy Part Prepared by Casting-Forging Integrated Forming Technology." Materials Science Forum 788 (April 2014): 215–22. http://dx.doi.org/10.4028/www.scientific.net/msf.788.215.

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The effect of applied forging pressure on microstructure and mechanical properties of 6061 aluminum alloy was examined. The results showed that the ultimate tensile strength, elongation and hardness of the alloy after heat-treated treatment increase with the applied forging pressure, and the corresponding highest values, 365MPa, 11.52% and 146.53HV, were obtained at the applied forging pressure of 120MPa. Compared to casting condition without forging pressure, the ultimate tensile strength, elongation and hardness can be increased by 22.8%, 98.2% and 48.7%, respectively. The defects such as th
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Yang, Zhao, Guang Xu Wang, Xue Xuan Xu, Xiao Long He, and Jian Ning Lu. "Macro-Observation of the Interface of the Al-22%Si-Cu/Al-7%Si-MG Bi-Metal Parts Fabricated by Thixoforging." Solid State Phenomena 256 (September 2016): 69–74. http://dx.doi.org/10.4028/www.scientific.net/ssp.256.69.

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Thixo-forging has been proved to be able to fabricate bi-metal parts with a complex outline and a relatively regular interface economically. These products have potential applications on high volume stability radiators, brakes, and pistons. However, it is very difficult to evaluate the curved interfaces by micro observations. In this work, Al-22%Si-Cu/Al-7%Si-Mg bi-metal parts were fabricated by thixo-forging; state of the interfaces of the bi-metal parts was investigated by X-ray flaw detector observations and tensile test; optical microscope (OM) observation and scan electron microscope (SEM
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RAMESH KUMAR, R., and J. M. BABU. "Tensile strength Characteristics on Dissimilar Metal Friction Welding of Ti-6Al-4V & SS304L." INCAS BULLETIN 12, no. 1 (2020): 157–66. http://dx.doi.org/10.13111/2066-8201.2020.12.1.15.

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In this research, the method of friction welding joints in Titanium and Stainless Steel with aluminium interlayer coating is created. The friction welding process is a solid-state joining process of dissimilar or similar materials. This friction welding process needs high rotational speed and high forging pressure. Titanium and stainless steel materials melting temperatures are around 1600OC. Welding process which needed high-pressure, temperature and good velocity regions. Titanium and stainless steels are coated 300OC ranges to applied aluminium spray coating method with constant pressure. T
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Dworzak, Łukasz, Marek Hawryluk, and Marta Janik. "The Impact of the Lubricant Dose on the Reduction of Wear Dies Used in the Forging Process of the Valve Forging." Materials 14, no. 1 (2021): 212. http://dx.doi.org/10.3390/ma14010212.

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The paper presents the results of research on the influence of the settings of lubrication and cooling system parameters (solenoid valve opening time and lubricant feed pressure in terms of its quantity) in order to select the optimal lubricating conditions and thus reduce the wear of the dies used in the first forging operation of the valve forging made of high-nickel steel. Based on the observation of lubrication in the industrial process, it was found that a significant part of the lubricant fails to reach the die cavity, reaching the outside of it, which causes die wear due to seizure resu
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Dissertations / Theses on the topic "Forging pressure"

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Ma, Yanling. "Fundamental and engineering application studies of pressure-assisted injection forging of thick-walled tubular components." Thesis, University of Strathclyde, 2004. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=23939.

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Fundamental issues and engineering application aspects of Pressure-Assisted Injection Forging (PAIF) of thick-walled tubular components were studied experimentally and analytically. Achievements from this study met its pre-defined goals and are demonstrated with the following facts: Pressurising materials were selected and qualified under six different loading conditions, based on which a simplified configuration for confined compression tests was proposed, and particularly, a unique biaxial testing machine was developed and used satisfactorily. The test data were subsequently used to establis
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Enaim, Mohammed. "Etude de la co-forgeabilité d'u multi-matériau : application à un coupe d'acier." Thesis, Paris, ENSAM, 2019. http://www.theses.fr/2019ENAM0002/document.

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Le forgeage multi-matériaux est un procédé permettant la mise en forme et l’assemblage simultanés de matériaux différents. Ce procédé permet d’obtenir des pièces multi-matériaux avec le « bon matériau placé au bon endroit ». L’objectif des travaux de thèse est de définir les conditions nécessaires à l’établissement de la liaison métallurgique par forgeage à l’interface d’un couple d’aciers. Dans un premier temps, l’état de l’art a servi à l’identification les phénomènes physiques accompagnant le forgeage multi-matériaux et les paramètres clés pilotant l’établissement de la liaison métallurgiqu
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Nicolay, Alexis. "Microstructure et propriétés de l'Inconel 718 DA forgé en presse à vis dans le domaine subsolvus δ". Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEM067.

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En raison de leurs bonnes propriétés à haute température, les superalliages base nickel polycristallins sont largement employés pour la fabrication des disques de turbine des moteurs d’avion. Parmi eux, l’Inconel 718 est actuellement le plus employé pour les disques des moteurs civils. De telles pièces sont obtenues par forgeage à chaud. Les évolutions microstructurales se produisant au cours de ce procédé sont très sensibles aux conditions de forgeage (température, vitesse et niveau de déformation). Puisque microstructure et propriétés mécaniques sont directement liées, il est de la plus gran
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Mull, Jean-François. "Contribution à la modélisation du comportement dynamique du système de production composé de la machine et de ses outillages durant la phase de mise en forme. Application aux machines pilotées en énergie : de la presse à vis au pilon contre-frappe." Thesis, Paris, HESAM, 2020. http://www.theses.fr/2020HESAE057.

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L’enjeu du forgeage est la maîtrise des dimensions finales et des qualités métallurgiques du produit fini. Plusieurs phénomènes influencent le procédé dont le comportement de la machine. Les efforts importants mis en œuvre et les fortes décélérations des éléments en mouvement lors de la déformation de la pièce provoquent des phénomènes dynamiques à l’origine de pertes énergétiques. Sur les machines pilotées en énergie, dont font partie les presses à vis et les pilons, la mesure des efforts de forgeage et du déplacement des éléments en mouvement peut être complexe, du fait des conditions extrêm
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Chen, Chin-Trias, and 陳進財. "Study to temperature mechanical properties of low pressure nitriding on hot forging steels." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/00639035736604643961.

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碩士<br>國立成功大學<br>材料科學(工程)學系<br>85<br>Hot forging steels containing chromium and molybdenum are commonly used in situations where the components are exposed to high temperature and pressure during service.Under these situations,wear,fatigue and corrosion are the main failure phenomena. Inproperties such as high hardness,resistance to ear , fatigue, corrosion and high thermal shock resistance are necessary. Traditionally,the ferritic thermochemical treatment, gas nitriding,have been particular
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Amegadzie, Mark Yao. "Effect of forging pressure on the microstructure of linear friction welded Inconel 738 superalloy." 2012. http://hdl.handle.net/1993/8125.

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Inconel 738, which is a nickel base superalloy used for hot section components of aircraft and industrial turbines is difficult to fabricate and repair by fusion welding due to its susceptibility to heat affected zone (HAZ) intergranular cracking. Crack-free joining of the difficult-to-weld alloy is currently achieved by using linear friction welding (LFW). Nevertheless, oxidation along the joint during LFW is a major problem. Information about the effect of process parameters on the microstructural evolution of linear friction welded nickel base alloys is very limited. In this work, the effec
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Lin, Chun-yen, and 林俊諺. "Multistage Cold-Forging Process Analysis of the Pressure Cap Used in Automobile Air Bag." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/pk68a8.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>100<br>It has become more indispensable to buy automobiles without air bags equipped. Air bags are assembled by a variety of parts and sensors. In order to ensure that an air bag can play its role in an accident, no error or flaws allowed on the parts both in manufacture and assembly. Air bag pressure cap, for example, was not manufactured the same way domestically and abroad. Under this condition, this study chose to focuse on the cold forging process; aiming to reduce multistage forging process, and to make factories more efficient. Computer-aided design (CAD) and
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王總守. "An estimation of free forging pressure of a square block subjected to diagonal pressing using upper bound method." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/76949925214830911483.

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Books on the topic "Forging pressure"

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Ye gu gao ya cheng xing ji shu yu ying yong: Technology and Application of Liquid Solid Forming Under High Pressure. Guo fang gong ye chu ban she, 2013.

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Bind, A. K. Mechanical properties of Zr-2.5Nb pressure tube material manufactured employing forging routes for PHWR700 - Part I: Tensile behaviour. Scientific Information Resource Division, Bhabha Atomic Research Centre, 2012.

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Book chapters on the topic "Forging pressure"

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Evans, Eric J. "The politics of pressure I." In The Forging of the Modern State. Routledge, 2018. http://dx.doi.org/10.4324/9781351018227-33.

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Evans, Eric J. "The politics of pressure II." In The Forging of the Modern State. Routledge, 2018. http://dx.doi.org/10.4324/9781351018227-34.

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Bao-zhong, Wang, Liu Kai-quan, Liu Ying, Zhang Wen-hui, and Zhao De-li. "Development of Mono-bloc Forging for CAP1400 Reactor Pressure Vessel." In Energy Materials 2014. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-48765-6_52.

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Jia-yu, Jin, Rui Shou-tai, and Wang Qun. "The Anatomy of AP1000 Mono-Block Low Pressure Rotor Forging." In Energy Materials 2014. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-48765-6_61.

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Jia-Yu, Jin, Rui Shou-Tai, and Wang Qun. "The Anatomy of AP1000 Mono-Block Low Pressure Rotor Forging." In Energy Materials 2014. John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119027973.ch61.

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Bao-Zhong, Wang, Liu Kai-Quan, Liu Ying, Zhang Wen-Hui, and Zhao De-Li. "Development of Mono-Bloc Forging for CAP 1400 Reactor Pressure Vessel." In Energy Materials 2014. John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119027973.ch52.

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Okano, Tomoaki, Nobuhide Tanino, and Kazuhiko Kitamura. "Development of Oil-Type Lubricants for Cold Forging Using Phase Transition Behavior Under High-Pressure Conditions." In Forming the Future. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75381-8_127.

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"The politics of pressure: I Chartism." In The Forging of the Modern State. Routledge, 2014. http://dx.doi.org/10.4324/9781315837383-44.

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Link, Stefan J. "Nazi Fordismus." In Forging Global Fordism. Princeton University Press, 2020. http://dx.doi.org/10.23943/princeton/9780691177540.003.0005.

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This chapter investigates Nazi Germany's efforts to acquire American mass production technology in order to create their own version of Fordism in the Thirties. Unlike the Soviet Union, Germany boasted a highly developed industrial base in its own right, centered around classic producer goods, such as coal, steel, machine tools, and instruments. Though Germany's machine tool builders were a proud and venerable branch with considerable export clout, they were unequipped to supply mass production factories. Acquiring automotive mass production was of neuralgic significance: it not only harbored the potential of a growth-generating consumer and export sector, but it was also — more immediately urgent to the Nazi regime — of primary military-strategic significance. Accordingly, the Nazi regime did not purchase bulk machinery and entire technological systems wholesale, Soviet-style. Instead, it resorted to targeted industrial reconnaissance and the recruitment of American specialists — that is, to Detroit missions such as those of Ferdinand Porsche, Otto Dyckhoff, and William Werner. The Nazi regime ensnared the American multinationals operating in Germany in a web of political pressure and economic incentives, and in doing so found ways to appropriate the Americans' technology without spending significant amounts of US dollars.
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"The politics of pressure: II The Anti-Corn-Law League." In The Forging of the Modern State. Routledge, 2014. http://dx.doi.org/10.4324/9781315837383-45.

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Conference papers on the topic "Forging pressure"

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Morgan, Michael J. "Effect of Hydrogen Isotopes on the Fracture Toughness Properties of Types 316L and 304L Stainless Steel Forgings." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93702.

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Abstract Forged stainless steels are commonly used for the containment of hydrogen isotopes and fracture toughness properties are needed for structural integrity assessments. In this study, the effects of hydrogen and tritium precharging on the fracture-toughness properties of Types 316L and 304L stainless steel forgings were measured. The purpose of the study was to evaluate hydrogen and tritium effects on fracture toughness properties of: (1) Type 316 stainless steel stem-shaped and cup shaped forgings; and (2) Type 304L cylindrical block forgings with two different yield strengths. Arc-shap
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Suzuki, Komei, Etsuo Murai, Yasuhiko Tanaka, Iku Kurihara, Tomoharu Sasaki, and Yoichi Koyama. "Manufacturing and Properties of Closure Head Forging Integrated With Flange for PWR Reactor Pressure Vessel." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-3056.

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Closure head forging (SA508, Gr.3 Cl.1) integrated with flange for PWR reactor pressure vessel has been developed. This is intended to enhance structural integrity of closure head resulted in elimination of ISI, by eliminating weld joint between closure head and flange in the conventional design. Manufacturing procedures have been established so that homogeneity and isotropy of the material properties can be assured in the closure head forging integrated with flange. Acceptance tensile and impact test specimens are taken and tested regarding the closure head forging integrated with flange as v
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Hall, J. Brian, Benjamin E. Mays, and Matthew DeVan. "Large SA-508 Class 2 Nozzle Forging Near-Surface Fracture Toughness." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65982.

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The current approach in evaluating the Pressurized Water Reactor (PWR) inlet and outlet nozzle corner regions with respect to plant heat-up and cool-down pressure-temperature limit curves contains a number of conservatisms. These conservatisms include postulation of a large ¼ thickness flaw at the nozzle corner region and use of RTNDT (reference nil-ductility temperature) or an estimation of RTNDT. The paper herein discusses generic fracture toughness of nozzle forging material SA-508 Class 2 for use with postulated smaller surface flaws in developing pressure-temperature limit curves for nozz
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Muldoon, Thomas R., Bob Cashner, and Sara Vestfals. "High Pressure Feedwater Heater Cup Forging Alteration." In ASME 2014 Power Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/power2014-32217.

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American Exchanger Services, Inc (AM-EX) performed a 2012 repair of a vertical head-up High Pressure (HP) Feedwater Heater breech lock channel during a shop based re-tube for the American Electric Power (AEP) Wilkes Power Plant, Unit 1. The 48 year old channel is a carbon steel cup-forging that had 1-1/2″ deep circumferential cracks extending radially into the tight knuckle radius at the channel barrel to tubesheet junction. A small area was also found on the backside of the tubesheet which had corroded to a depth of 7/16″. Several methods to repair these types of failures may be employed, suc
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Miller, C., F. Champigny, and J. M. Frund. "Manufacturing Conditions of French Reactor Pressure Vessels to Avoid the Occurrence of Hydrogen Flakes." In ASME 2016 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/pvp2016-63881.

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The formation of hydrogen flakes in Reactor Pressure Vessels (RPV’s) forgings is a well known phenomenon that can affect forging components during manufacturing. Following recent data from Belgium, it has been the object of important assessments during the last 3 years. We will present in this paper elements pertaining to the RPV’s of the French nuclear fleet. A thorough review of fabrication processes and specifically of ultrasonic examination of forgings, including the oldest ones has demonstrated that the risk of leaving undetected hydrogen flakes in RPV’s forgings is not a problem in Frenc
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Hurrell, P. R., N. A. Leggatt, and R. J. Dennis. "Residual Stress Analysis of Tube Attachment Weld in Pressure Vessel Forging: Comparison of FE Predictions and Measurements." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71315.

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Residual stresses were analysed in a partial penetration weld attaching a tube inside a thick pressure vessel forging, both made of SA508 steel. 2D finite element (FE) analyses methods were used to simulate this multi-pass manual TIG weld. The weld preps are buttered and the forging subsequently heat-treated prior to making the closure weld. Buttering of the forging J-prep and subsequent PWHT creep stress relaxation were modelled. Generally the buttering was found to have minimal influence on the final stress state, although some difference in local peak stress and stress gradients were calcul
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Chaouadi, Rachid, Robert Gérard, and Eric van Walle. "Fracture Toughness Characterization of Vessel Forging With Hydrogen Flaked Specimens." In ASME 2016 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/pvp2016-63632.

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The 2012 in-service vessel inspections performed at Doel-III and Tihange-II Nuclear Power Plant revealed a large number of ultrasonic indications in the forged core shells suggesting nearly-laminar defects attributed to hydrogen flakes induced during the component manufacturing process. These observations have initiated a very large experimental test program not only for reliably and accurately characterizing the ultrasonic indications but also to characterize the mechanical properties in presence of hydrogen flakes. A key point of the Safety Case was the justification of the material properti
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Chernobaeva, Anna A., Natalya A. Shulgan, Yaroslav I. Shtrombakh, Tatyana I. Titova, Yury A. Nikolaev, and Marina G. Blinova. "Mechanical Properties Distribution in Welds and Forging of VVER-1000." In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-77236.

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Study of weld metal and shell metal of VVER-1000 reactor is carried out. Metal of the control welded joint performed to the welds Nos. 3 and 4 and metal of the test ring of supporting shell is used. For each of the analyzed materials the bending tests of Charpy specimens are carried out according to the surveillance specimens testing procedure. Fabrication of specimens and all the tests are performed by TK “OMZ Izhora”, ltd. Leadership of the tests and assessment of brittle-to-ductile transition temperature is performed by RRC “Kurchatov Institute”. It is shown that guaranteed values of brittl
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Talbert, Gregory L., and Edward John Vinarcik. "Forging Stock Anneal Optimization for Automotive Pressure Vessel Applications." In WCX™ 17: SAE World Congress Experience. SAE International, 2017. http://dx.doi.org/10.4271/2017-01-1264.

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Cao, Yupeng, Yinbiao He, Binxi Wang, et al. "Evaluation of Irradiation Embrittlement of the Chinese RPV Steels." In ASME 2019 Pressure Vessels & Piping Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/pvp2019-93615.

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Abstract Reactor pressure vessel (RPV) is considered to be irreplaceable, which is the most limiting factor for the lifetime of a nuclear power plant. This paper aims to introduce our project for the evaluation of the irradiation embrittlement for the Chinese RPV forging. The forging manufactured in China was irradiated in the high fluence engineering test reactor. Tensile tests, Charpy impact tests and fracture toughness tests in terms of master curve T0 were carried out for the material subjected to different irradiation fluences. Comparison of the mechanical properties of the irradiated mat
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