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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2023
ISBN: 978-0-8031-7733-8
... In the bicycle and e-bike industry, lightweight designs often incorporate aluminum tube constructions that are joined through inert gas welding. These constructions are susceptible to fatigue damage. A standardized test specimen (two tubes joined to a T shape) was designed to determine how...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2017
ISBN: 978-0-8031-7645-4
..., including the requirements for cage reinforcing welded lap splices. A discrepancy in the pull test requirement for welded lap splices existed between the 2008 versions of both specifications until ASTM C1417-11 was revised to mirror ASTM C76-08. ASTM C76-08 required pull tests of representative specimens...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2015
ISBN: 978-0-8031-7529-7
... Resistance butt welding (RBW) is the main process used by AREVA to weld end plugs to fuel rod cladding. The combination of current, electrical resistivity of the plug–cladding contact, and applied pressure is set so as to weld the parts without fusion of the materials. Because this is a solid...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2006
ISBN-10: 0-8031-3405-3
ISBN: 978-0-8031-3405-8
... A common concern in the welding industry is the development of conditions wherein an oxygen-acetylene (i.e., oxyacetylene) flashback reaction can propagate into a welding hose causing it to burst due to the rapid localized pressurization associated with an oxygen-acetylene deflagration...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2005
ISBN-10: 0-8031-3488-6
ISBN: 978-0-8031-3488-1
... The fabrics of welders' protective garments can be worn out after only one or two use-wash cycles. It is probable that the by-products in the welding process, i.e., ultraviolet C-type (UVC) radiation, ozone, metal fumes, can contribute to the molecular changes responsible for the degradation...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2852-5
ISBN: 978-0-8031-2852-1
... Helium atoms are generated in neutron-irradiated stainless steels. In order to predict the post-irradiation weldability, a model is presented to calculate helium bubble formation along grain boundaries during welding of helium containing stainless steels. It calculates helium diffusion toward...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1999
ISBN-10: 0-8031-2614-X
ISBN: 978-0-8031-2614-5
... Tensile specimens of a titanium modified austenitic stainless steel and its weldments fabricated with Tungsten Inert Gas (TIG) and Electron Beam (EB) welding techniques were irradiated to a peak dose of 19 dpa and a peak helium level of 250 appm in the temperature range between 200 and 400° C...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1985-2
ISBN: 978-0-8031-1985-7
... as the Aluminum Fatigue Behaviour and Evaluation Task (ALFABET) and is summarized in this paper. expert system database aluminum welding fatigue (materials) fracture (materials) S-N curves test automation testing methods data analysis Dimitris Kosteas, 1 Roland Ondra, t and Wallace W. Sanders...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1484-2
ISBN: 978-0-8031-1484-5
... granular ferrite copper precipitates welding heat-affected zones transmission electron microscopy scanning electron microscopy light microscopy metallography metallurgical specimens microstructure metallographic techniques Rajan Varughese I and Paul R. Howell I The Application of Transmission...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1477-X
ISBN: 978-0-8031-1477-7
... to radiation-induced properties changes for a variety of reasons. Some of these include dispersoid redistribution by ballistic resolution, effects of retained dissolved oxygen, and nonuniformity of dispersoid distribution. The effect of laser welding was also examined. This joining technique was found...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-5112-8
ISBN: 978-0-8031-5112-3
... 6TCS and 8TCS have been tested to attain the same K Ic measuring capacity as the irradiated specimens. The materials for this irradiation series are two weldments fabricated from special heats of weld wire with copper added to the melt. One lot of Linde 0124 flux was used for all...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1277-7
ISBN: 978-0-8031-1277-3
... Differences between full-size and small specimens in the fatigue performance of transverse welded aluminum joints are investigated. Residual stresses and their possible effect on fatigue strength are also discussed. In addition, comparative methods of evaluating and presenting test data...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1406-0
ISBN: 978-0-8031-1406-7
... resistance to pitting and in the morphology of attack. In terms of pitting resistance of duplex stainless steel weldments, it was found that pitting susceptibility could be related to both ferrite content and pitting index (PI) of the weld metal. At equivalent values of PI and ferrite content, the weld metal...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1989
ISBN-10: 0-8031-1191-6
ISBN: 978-0-8031-1191-2
... This paper presents recent developments in Welding Information Systems at the American Welding Institute (AWI). First, it covers the traditional data and knowledge representation and use of welding technology. Then it presents the use of advanced computer technology to rapidly retrieve and use...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1989
ISBN-10: 0-8031-1259-9
ISBN: 978-0-8031-1259-9
... The existing possibilities of steelmaking imply that ultra low sulfur contents can be obtained. The weldability of these steels had not yet been clearly defined as good or not. In this study the welding behavior has been determined both for normalized steels, and quenched and tempered steels...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-0949-0
ISBN: 978-0-8031-0949-0
... elastic fracture mechanics to characterize the fatigue behavior of high-strength steel weldments containing lack-of-penetration (LOP) and slag/lack-of-fusion (S/LOF) discontinuities. Full penetration, double-V butt welds with reinforcements removed were tested under zero-to-tension axial loading. Various...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-0959-8
ISBN: 978-0-8031-0959-9
... An investigation was conducted to characterize the influence of welding variables, such as weld metal diffusible hydrogen content, on the hydrogen cracking resistance of HY-80 steel. The moisture pickup characteristics of several shielded metal-arc welding products were measured by the standard...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-0959-8
ISBN: 978-0-8031-0959-9
... Welding Society (AWS), and the National Association of Corrosion Engineers (NACE). Some discussion of the applicability and limitations of each test method is included. hydrogen embrittlement aircraft maintenance chemicals fasteners welding sulfide stress cracking David J. Coates 1...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-0981-4
ISBN: 978-0-8031-0981-0
... A program for evaluating the corrosion resistance of various dissimilar welded nickel-base alloy combinations is outlined. Alloy combinations included Alloy ALLCORR, Alloy C-276, Alloy 72, and Alloy 690. The gas tungsten arc weld (GTAW) process involved both high and minimum heat input...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-1195-9
ISBN: 978-0-8031-1195-0
... Observations and assumptions on residual stresses and their effect on the fatigue behavior of welded aluminum structures are reviewed along with attempts to explain and evaluate experimental component fatigue strength data. Measurements from a recent research program on welded aluminum beams...