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AbstractAbstract
[en] Rotating bending fatigue tests were performed on the commercial medium carbon steel(S45C) coated with two kinds of only aluminium and aluminium-beryllium. A decrease of the fatigue strength was observed and increased according as the thickness of a alloy layer increased. But the addition of beryllium to molten aluminium bath decreased the hardness of alloy layer and improved the more fatigue strength than pure aluminium coating. (Author)
Primary Subject
Record Type
Journal Article
Journal
Theses Collection, Kyungnam University; CODEN YTNPD; v. 13 p. 381-391
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AbstractAbstract
[en] This specification prescribes requirements for carbon steel covered electrodes for shielded metal arc welding of carbon and low alloy steels. These electrodes are the most widely used in the welding industry
Primary Subject
Source
1983; 36 p; American Welding Society, Inc; Miami, FL (USA); AWS-A--5.1-81; Supercedes AWS A5.1-78.
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Book
Literature Type
Standard
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Zhang, Zong-kai; Ma, Xiao-bing; Cai, Yi-kun, E-mail: zhangzongkai@buaa.edu.cn2017
AbstractAbstract
[en] Stabilization time is an important parameter in long-term prediction of carbon steel corrosion in atmosphere. The range of the stabilization time of carbon steel in atmospheric corrosion has been published in many scientific literatures. However, the results may not precise because engineering experiences is dominant. This paper deals with the recalculation of stabilization time based on ISO CORRAG program, and analyzes the results and makes a comparison to the data mentioned above. In addition, a new thinking to obtain stabilization time will be proposed. (paper)
Primary Subject
Source
2. international seminar on advances in materials science and engineering; Singapore (Singapore); 28-30 Jul 2017; Available from http://dx.doi.org/10.1088/1757-899X/231/1/012161; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
Literature Type
Conference
Journal
IOP Conference Series. Materials Science and Engineering (Online); ISSN 1757-899X;
; v. 231(1); [5 p.]

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Microbiologically influenced corrosion of carbon steel in the presence of sulphate reducing bacteria
Tunaru, M.; Velciu, L.; Mihalache, M.; Laurentiu, P., E-mail: mariana.tunaru@nuclear.ro
Institute for Nuclear Research Pitesti, (Romania)
Proceedings of NUCLEAR 2016 the 9th annual international conference on sustainable development through nuclear research and education. Part 1/32016
Institute for Nuclear Research Pitesti, (Romania)
Proceedings of NUCLEAR 2016 the 9th annual international conference on sustainable development through nuclear research and education. Part 1/32016
AbstractAbstract
[en] Sulphate-reducing bacteria (SRB) are the most important organisms in microbiologically induced corrosion. In this context, the paper presents an assessment (by experimental tests) of the behaviour of carbon steel samples (SA106gr.B) in SRB media. Some of samples were immersed in microbial environment in order microbiological analysis of their surface and another part was used to perform accelerated electrochemical tests to determine electrochemical parameters for the system carbon steel / microbial medium (corrosion rate, the polarization resistance of the surface, susceptibility to pitting corrosion). The surfaces of the tested samples were analyzed using the optical and electronic microscope, and emphasized the role of bacteria in the development of biofilms under which appeared characteristics of corrosion attack. The correlation of all results confirmed that SRB accelerated the localized corrosion of the surfaces of SA 106gr.B carbon steel. (authors)
Primary Subject
Source
Paraschiv, Irina Maria (ed.); Turcu, Ilie (Institute for Nuclear Research-Pitesti, 1 Campului Str., RO-115400 Mioveni, Arges (Romania)); Institute for Nuclear Research-Pitesti, 1 Campului Str., RO-115400 Mioveni, Arges (Romania). Funding organisation: National Authority for Scientific Research, Bucharest (Romania); 332 p; ISSN 2066-2955;
; 2016; p. 243-248; NUCLEAR 2016: 9. annual international conference on sustainable development through nuclear research and education; Pitesti (Romania); 18-20 May 2016; Also available from author(s) or Institute for Nuclear Research-Pitesti, 1 Campului Str., RO-115400 Mioveni, Arges (RO); 2 refs., 1 tab.

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Miscellaneous
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AbstractAbstract
[en] Hydrogen diffusivity through steels at room temperature has been known to deviate considerably from the expected Arrhenius relation. This deviation is due to the attractive interactions between dissolved hydrogen and trapping sites (imperfections in the steel lattice). In a previous work it was shown that the apparent diffusion coefficients attain a minimum value in a fresh martensite and diffusivity increases in the same material tempered at 453 k during six hours. In order to explain this difference, the variation of hydrogen trapping sites with the tempering time, at the mentioned temperature, was studied by means of hydrogen permeation tests. Carbides precipitation was followed by means of the extraction replica technique using transmission electron microscopy. The hydrogen diffusivity obtained by the hydrogen permeation tests attained a minimum value in the quenched specimens and increased with increasing tempering time up to reach a constant value between three and six hours. This change in the hydrogen diffusivity was attributed to the trapping sites decrease promoted by carbides precipitation and their precipitation kinetics was described by an Avrami equation. (author). 4 refs., 4 figs
Original Title
Efectos de la precipitacion de carburos sobre la difusion del hidrogeno en un acero de bajo carbono templado y revenido
Primary Subject
Source
Asociacion Argentina de Materiales (SAM), Buenos Aires (Argentina); Jujuy Univ. Nacional (Argentina). Facultad de Ingenieria; 416 p; 1996; p. 281-284; Universidad Nacional de Jujuy; San Salvador de Jujuy (Argentina); SAM meeting '96: National meeting on precious metals; Jornadas SAM '96: Encuentro nacional de metales preciosos; San Salvador de Jujuy (Argentina); 11-14 Jun 1996
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Miscellaneous
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AbstractAbstract
[en] This paper explains the results of the initial stage of investigation of atmospheric corrosion on structural steel in industrial zones. Investigation is carried out on two shape profile of low carbon steel that is widely used for the construction of structures, namely sheet, and elbow. Corrosion rate measurement process and preparation were carried out based on ASTM G-50 and ASTM G-1 standards, with a total exposure time of six months in Medan Deli District, Medan, North Sumatra. The results of this initial stage of the investigation show that the average corrosion rate of low carbon steel for each profile is different, but overall it is still in the “good” category. This investigation will be continued for up to twelve months to obtain more complete data. (paper)
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Secondary Subject
Source
Conference on Innovation in Technology and Engineering Science; Padang (Indonesia); 8-9 Nov 2018; Available from http://dx.doi.org/10.1088/1757-899X/602/1/012075; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Literature Type
Conference
Journal
IOP Conference Series. Materials Science and Engineering (Online); ISSN 1757-899X;
; v. 602(1); [6 p.]

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Contribution to cyclic creep of Ck 15 steel. Experiments and an elastic-plastic multi-surfaces model
Kikillus, U.
Bochum Univ. (Germany). Inst. fuer Mechanik; Bochum Univ. (Germany). Fakultaet fuer Maschinenbau1993
Bochum Univ. (Germany). Inst. fuer Mechanik; Bochum Univ. (Germany). Fakultaet fuer Maschinenbau1993
AbstractAbstract
[en] In this thesis the material behaviour of Ck 15 under strain and stress control is presented. A new bounding surface model is developed. The hardening and softening behaviour is described in the experimental part by cyclic loading with strain limits. Ratchetting is the result of uniaxial cyclic tests under stress control. Small differences between loading and reloading path sum up to a cyclic creep strain. This behaviour is observed in nonproportional processes, too. To prevent overprediction of the cyclic creep, a transient bounding surface in stress space with constant radius is introduced. The evolution of the bounding surface is divided into an oscillating part and a recovery part. That way shakedown as well as ratchetting can be modeled. Material functions are determinated phenomenologically. Numerical simulation shows good results compared with the experimental data in a wide range of application. (orig.)
[de]
In dieser Arbeit wird das Materialverhalten von Ck 15 bei Dehnungs- und Spannungssteuerung vorgestellt und ein neues Grenzflaechenmodell entwickelt. Im experimentellen Teil wird anhand zyklischer Belastungen mit Dehnungsvorgaben das Ver- und Entfestigungsverhaltens beschrieben. Ratchetting ergibt sich bei einaxialen, zyklischen Versuchen mit Spannungsvorgaben. Kleine Unterschiede zwischen Belastungs- und Gegenbelastungspfad addieren sich zur zyklischen Kriechdehnung auf. Dieses Verhalten wird auch bei nichtproportionalen Belastungsbedingungen beobachtet. Um zyklisches Kriechen nicht erheblich zu gross zu modellieren, wird eine im Spannungsraum bewegliche Grenzflaeche konstanten Durchmessers eingefuehrt. Die Bewegungsgleichung der Grenzflaeche besteht aus einem Folgeterm und einem Abklingterm. Dadurch kann sowohl Shakedown als auch Ratchetting modelliert werden. Die Auswahl der Materialfunktionen erfolgt phaenomenologisch. Ein Vergleich zwischen den experimentellen Ergebnissen und den Simulationsrechnungen zeigt die Anwendbarkeit des modifizierten MFG-Modells in weiten Bereichen. (orig.)Original Title
Ein Beitrag zum zyklischen Kriechverhalten von Ck 15. Experimente und ein elastisch-plastisches Mehrflaechenmodell
Primary Subject
Source
May 1993; 214 p; Available from TIB Hannover: RN 4503(84); Diss. (Dr.-Ing.).
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Report
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Thesis/Dissertation
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AbstractAbstract
No abstract available
Original Title
O mezhfaznykh vydeleniyakh v zakalennoj malouglerodistoj stali
Primary Subject
Source
Short note; for English translation see the journal Physics of Metals and Metallography (USA).
Record Type
Journal Article
Journal
Fizika Metallov i Metallovedenie; ISSN 0015-3230;
; v. 48(5); p. 1081-1083

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Venter, R.D.; Sinclair, A.N.; McCammond, D.
Atomic Energy Control Board, Ottawa, ON (Canada)1989
Atomic Energy Control Board, Ottawa, ON (Canada)1989
AbstractAbstract
[en] The thrust of this work was to investigate published J material resistance and stress-strain data applicable to the understanding of crack propagation in tough ductile steels, particularly SA 106 Grade B pipe steel. This data has been assembled from PIFRAC, AECB report INFO-0254-1 and Ontario Hydro sources and has been uniformly formatted and presented to facilitate comparison and assessment. While the data is in many aspects incomplete it has enabled an evaluation of the influence of temperature, specimen thickness and specimen orientation to be made in the context of the experimental J-R curves so determined. Comparisons of the stress-strain data within the Ramburg-Osgood formulation are also considered. A further component of this report addresses the development of the required software to utilize what is referred to as the engineering approach to elasto-plastic analysis to investigate the load carrying capacity of selected cracked pipe geometries which are representative of applied crack propagation studies associated with piping systems in the nuclear industry. Three specific geometries and loading situations, identified as Condition A, B and C have been evaluated; the results are presented and illustrate the variation in applied load as a function of an initial and final crack extension leading to instability
Primary Subject
Source
Jun 1989; 176 p
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Report
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AbstractAbstract
[en] With respect to structural carbon steel(SM 22C), it was studied how the overstress or the understress has effects on fatigue inside crack propagation curve of a two level stress. Obtained results are summarized as follows. 1) The overstress or the understress, at a slip band occurrence stage, does not change the inside crack propagation curve because the crack closure and opening phenomena do not happen. 2) The overstress, at a crack propagation stage, does not change the inside crack propagation curve because the crack closure of overstress in compressive state is nearly same that of base stress in compressive state. 3) The understress, at a crack propagation state, give rise to an acceleration of crack growth because the crack closure of understress in compressive state is more open than that of base stress in compressive state and the phenomenon is the essential increase of the actual applied stress of the specimen. (Author)
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Record Type
Journal Article
Journal
Transactions of the Korean Society of Mechanical Engineers; CODEN TSMED; v. 10(2); p. 188-197
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