Influence Of Irradiation On The Tensile Properties Of Austenitic Stainless Steel Weldments PDF Download
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Author | : |
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Total Pages | : |
Release | : 1980 |
Genre | : |
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Download Influence of Irradiation on the Tensile Properties of Austenitic Stainless Steel Weldments Book in PDF, ePub and Kindle
Weldments in the first wall and front sections of the blanket of a fusion reactor will be exposed to approximately the same operating conditions as will the base metal. Thus the irradiation response of weld metal, of the weld heat affected zones in the base metal, and of the base metal are all of equal concern. Austenitic stainless steels will most likely be joined by a gas tungsten arc welding process. Welds have been made by this process between sections of 6-mm-thick (0.25 in.) base plate of type 316 in the 20%-cold-worked condition, with either type 316 or 16-8-2 stainless steel filler metal. Rod tensile specimens were cut through the welds, containing weld meta in the central gage portion. Weld-contaning tensile specimens have been irradiated in HFIR at 55°C and throughout the temperature range 280 to 620°C. The neutron fluences ranged from 0.5 to 1.6 x 1026 n/m2 (> 0.1 MeV). The corresponding displacement damage levels range from 4.5 to 12.1 dpa, and the helium generation from the thermal neutron captures in nickel resulted in 100 to 550 at. ppM He.
Author | : J. E. Irvin |
Publisher | : |
Total Pages | : 34 |
Release | : 1965 |
Genre | : Nuclear energy |
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Download The Combined Effects of Temperature and Irradiation on the Mechanical Properties of Austenitic Stainless Steels Book in PDF, ePub and Kindle
Author | : J. Walter Joseph |
Publisher | : |
Total Pages | : 16 |
Release | : 1960 |
Genre | : Stainless steel |
ISBN | : |
Download Mechanical Properties of Irradiated Welds in Stainless Steel Book in PDF, ePub and Kindle
Author | : A-A Tavassoli |
Publisher | : |
Total Pages | : 15 |
Release | : 1996 |
Genre | : Creep |
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Download Data Collection on the Effect of Irradiation on the Mechanical Properties of Austenitic Stainless Steels and Weld Metals Book in PDF, ePub and Kindle
Data on the influence of low dose 400-550°C irradiation on the mechanical properties of structural steels (Types 304, 316, 316L, 316H and 316L(N) and associated weld metals) at temperatures from 20°C to 750°C, have been compiled from published literature and the results of British, Dutch, French and German laboratories. Properties evaluated include tensile, impact, creep, fatigue, and creep-fatigue. The preliminary results, which cover the dose range from 0 to 5 displacements per atom (and/or up to 9 appm helium) are presented as comparisons between irradiated and unirradiated control data, covering a range of strength and cyclic properties. The results show that low dose irradiation can have a significant influence on the properties, i.e.:• increases in tensile proof strength,• reductions in tensile ductility,• decreases in impact energy,• reductions in creep-rupture strength and ductility, and • reductions in creep-fatigue endurance.
Author | : J. S. Armijo |
Publisher | : |
Total Pages | : 94 |
Release | : 1964 |
Genre | : Stainless steel |
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Download Radiation Effects on the Mechanical Properties and Microstructure of Type-304 Stainless Steel Book in PDF, ePub and Kindle
Author | : Martin L. Grossbeck |
Publisher | : ASTM International |
Total Pages | : 767 |
Release | : 2004 |
Genre | : Materials |
ISBN | : 0803134770 |
Download Effects of Radiation on Materials Book in PDF, ePub and Kindle
Author | : K. Shiba |
Publisher | : |
Total Pages | : 12 |
Release | : 1999 |
Genre | : Austenitic stainless steel |
ISBN | : |
Download Tensile Properties of a Titanium Modified Austenitic Stainless Steel and the Held Joints After Neutron Irradiation Book in PDF, ePub and Kindle
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 in spectrally tailored capsules in the Oak Ridge Research Reactor (ORR) and the High Flux Isotope Reactor (HFIR). The He/dpa ratio of about 13 appm/dpa is similar to the typical helium/dpa ratio of a fusion reactor environment. The tensile tests were carried out at the irradiation temperature in vacuum. The irradiation caused an increase in yield stress to levels between 670 and 800 MPa depending on the irradiation temperature. Total elongation was reduced to less than 10%, however the specimens failed in a ductile manner. The results were compared with those of the specimens irradiated using irradiation capsules producing larger amount of He. Although the He/dpa ratio affected the microstructural change, the impact on the post irradiation tensile behavior was rather small not only for base metal specimens but also for the weld joint and the weld metal specimens.
Author | : |
Publisher | : ASTM International |
Total Pages | : 437 |
Release | : |
Genre | : |
ISBN | : |
Download Irradiation Effects in Structural Alloys for Thermal and Fast Reactors Book in PDF, ePub and Kindle
Author | : ASTM International Symposium on Effects of Radiation on Structural Materials |
Publisher | : ASTM International |
Total Pages | : 502 |
Release | : 1976 |
Genre | : Science |
ISBN | : 9780803103887 |
Download Irradiation Effects on the Microstructure on Properties of Metals Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 11 |
Release | : 2002 |
Genre | : |
ISBN | : |
Download The Effect of Low Dose Rate Irradiation on the Tensile Properties and Microstructure of Austenitic Stainless Steel Book in PDF, ePub and Kindle
To assess the effects of long-term, low-dose-rate neutron exposure on mechanical strength and ductility, tensile properties were measured on 12% and 20% cold-worked Type 316 stainless steel. Samples were prepared from reactor core components retrieved from the EBR-II reactor following final shutdown. Sample locations were chosen to cover a dose range of 1-56 dpa at temperatures from 371-440 C and dose rates from 0.5-5.8 x10−7 dpa/s. These dose rates are approximately an order of magnitude lower than those of typical EBR-II test sample locations. The tensile tests for the 12% CW material were performed at 380 C and 430 C while those for the 20% CW samples were performed at 370 C. In each case, the tensile test temperature approximately matched the irradiation temperature. To help understand the tensile properties, microstructural samples with similar irradiation history were also examined. The strength and loss of work hardening increase the fastest as a function of irradiation dose for the 12% CW material irradiated at lower temperature. The decrease in ductility with increasing dose occurs more rapidly for the 12% CW material irradiated at lower temperature and the 20% cold-worked material. Post-tensile test fractography indicates that at higher dose, the 20% CW samples begin a shift in fracture mode from purely ductile to mainly small facets and slip bands, suggesting a transition toward channel fracture. The fracture for all of the 12% cold-worked samples was ductile. For both the 12% and 20% CW materials, the yield strength increases correlate with changes in void and loop density and size.