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Keywords: weld
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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2022
ISBN: 978-0-8031-7721-5
... to these issues is having reliable test methods to measure properties of interest. This work used an AON-M2 industrial printer to investigate material extrusion manufacturing. Past research has frequently shown interlayer weld strength (i.e., Z -direction strength) is the weakest property in material extrusion...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2009
ISBN: 978-0-8031-4506-1
... Zircaloy-4 (Zr-4) is a zirconium alloy that has been used extensively within the nuclear industry in both power generation and research reactors. The potential for welded reactor core components to undergo embrittlement during neutron irradiation is an important materials property issue...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2878-9
ISBN: 978-0-8031-2878-1
... Tritium target/blanket assemblies were irradiated for six months at the Los Alamos Neutron Science Center (LANSCE). Stainless steel to aluminum inertia weld transition joints were welded to the target/blanket assemblies to simulate expected transition joints in the Accelerator Production...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2852-5
ISBN: 978-0-8031-2852-1
... In fission and fusion reactor applications, properties of welds and welded joints are key factors that limit component service conditions including their lifetime. Therefore, the availability of reliable repair welding techniques is strongly required in order to reduce the cost of electricity...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1999
ISBN-10: 0-8031-2614-X
ISBN: 978-0-8031-2614-5
... experimental values. Similar success was achieved for predicting the upper shelf energy of subsize precracked specimens based on full size data. finite element modeling dynamic impact weld upper shelf energy Charpy specimens precracked neutron irradiation Arvind S. Kumar 1, Scott E. Sidener2...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1999
ISBN-10: 0-8031-2486-4
ISBN: 978-0-8031-2486-8
... Defects that develop in welds during the fabrication process are frequently manifested as embedded flaws from lack of fusion or lack of penetration. Fracture analyses of welded structures must be able to assess the effect of such defects on the structural integrity of weldments; however...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1995
ISBN-10: 0-8031-1996-8
ISBN: 978-0-8031-1996-3
... specimens. When the plasticity properties of base and weld metals are different, which is referred to as weld strength mis-match, the defect assessment procedures need to be modified accordingly. Therefore, the ETM has recently been extended (ETM-MM) to predict the CTOD for tension loaded wide plates...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1995
ISBN-10: 0-8031-2018-4
ISBN: 978-0-8031-2018-1
... vessel steel and a low upper-shelf (LUS) submerged-arc (SA) weld were tested on the same Charpy machine, while one heat of a Russian Cr-Mo-V forging steel and a high upper-shelf (HUS) SA weld were tested on two different machines. The number of replicate tests at any one temperature ranged from 2 to 46...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1995
ISBN-10: 0-8031-1882-1
ISBN: 978-0-8031-1882-9
... Large-scale I-section beams were welded from A710 (HSLA-80) steel plates. There were plain welded beams, similar beams with two attachment details fillet welded to the tension flange, and similar beams with transverse groove welds. The welding procedures used produced a wide range of welding...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1997-6
ISBN: 978-0-8031-1997-0
... A 1-m fatigue crack was found after approximately four months of service in a welded steel roll that had an intended life of 20 years. The roll was part of a roll press used in a paper mill. The fatigue crack originated in a surface discontinuity and propagated parallel to the girth weld...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1477-X
ISBN: 978-0-8031-1477-7
... SA 3020 (nickel-modified) steel cladded with stainless steel is used as the pressure vessel material for the two 210-MW boiling water reactors of the Tarapur Atomic Power Station Charpy V-notch impact surveillance specimens representing the pressure vessel belthne base, weld, and the heat...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1477-X
ISBN: 978-0-8031-1477-7
... materials including weld joints and forged materials were irradiated at temperatures of 290, 350, and 400°C up to a fluence of 4 % 1023 n/m 2 (E > 1 MeV). Fracture toughness testing using disk-shaped compact tension specimens was conducted in the upper shelf region. Results show that fracture toughness...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1387-0
ISBN: 978-0-8031-1387-9
... A technique is described for establishing the microstructural features associated with the initiation of brittle fracture in weld metal and heat-affected zone (HAZ) crack-tip opening displacement (CTOD) test specimens. The technique involves detailed optical and scanning electron microscope...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-0959-8
ISBN: 978-0-8031-0959-9
... In recent years, there has been a rising interest in diffusible hydrogen testing of steel weld metals. Several test methods have been used with varying degrees of success. The glycerin displacement method, which has been widely used, has been demonstrated to be inaccurate and under certain...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1987
ISBN-10: 0-8031-0963-6
ISBN: 978-0-8031-0963-6
.... irradiation embrittlement lateral expansion absorbed energy Charpy V-notch requirements RT NDT base metal weld weld heat affected zone transition temperature transition temperature shift fluence Subrata Chatterjee,^ S. Anantharaman,^ K. S. Sivaramakrishnan,^ and Pradip R. Roy^ Irradiation...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1985
ISBN: 978-0-8031-0592-8
... damage have been planned. The results presented concern the nought, 0.1, 0.3, and 1 dpa irradiations. Irradiation and tests are conducted at 350°C and 550°C on plane-sided three-point bend bars. The Type 316H stainless steel has been considered in the base condition, the welded deposits, and the heat...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1979
ISBN-10: 0-8031-0327-1
ISBN: 978-0-8031-0327-6
... The fracture toughness of AISI 304 and 316L stainless steels and their welds irradiated to 7 × 10 25 neutrons (n)/m 2 (50 percent of this was at E > 0.1 MeV) was investigated on 10- and 20-mm-thick three-point bend specimens. Measurements of critical values of the J-integral, J c...