Author: B. A. CheadlePublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Delayed hydride cracking in russian rbmk zr-2.5 nb pressure tubes
Author: B. A. CheadleProceedings of the 8th Pacific Rim International Conference on Advanced Materials and Processing (PRICM-8)
Author: FernD.S. MarquisPublisher: Springer
ISBN: 3319487647
Category : Technology & Engineering
Languages : en
Pages : 3431
Book Description
PRICM-8 features the most prominent and largest-scale interactions in advanced materials and processing in the Pacific Rim region. The conference is unique in its intrinsic nature and architecture which crosses many traditional discipline and cultural boundaries. This is a comprehensive collection of papers from the 15 symposia presented at this event.
Delayed Hydride Cracking in Zirconium Alloys in Pressure Tube Nuclear Reactors
Author: International Atomic Energy AgencyPublisher: IAEA
ISBN:
Category : Business & Economics
Languages : en
Pages : 102
Book Description
Dated October 2004. With CD-ROM containing additional information inside back cover
Threshold stress intensity factor for delayed hydride cracking at 250 degrees c in zr-2.5nb pressure tube material supplied by cezus
Author: A. K. JarvineThreshold stress intensity factor for delayed hydride cracking at 250 degrees c in zr-2.5nb pressure tube material supplied by the chepetski mechanical plant
Author: A. K. JarvineInitiation of Delayed Hydride Cracking in Zirconium-2.5 Wt.% Niobium Pressure Tubes
Author: Ahmed Fathi ShalabiPublisher:
ISBN:
Category : Cracking process
Languages : en
Pages : 490
Book Description
Delayed hydride cracking (dhc) velocity (axial) at 250 degrees c for zr-2.5nb cezus pressure tube materials
Author: R. ChoubeyMeasurement of Rates of Delayed Hydride Cracking (DHC) in Zr-2.5Nb Alloys--An IAEA Coordinated Research Project
Author: Christopher E. ColemanPublisher:
ISBN:
Category : Delayed hydride cracking
Languages : en
Pages : 23
Book Description
Values of DHC rates in Zr alloys are sensitive to measurement procedures. A standard method has been developed at the laboratories of AECL and evaluated in a round-robin involving ten IAEA member states. Two test materials were used--Zr-2.5Nb pressure tubes in the cold-worked (CANDUTM) and heat-treated (RBMK) conditions. Cracks were grown from fatigued starter cracks in the axial direction on the axial-radial plane of the original tubes. To obtain the maximum value of Vc, specimens were heated to dissolve all their hydrogen, then cooled at 1 to 3°C/min to the test temperature before loading at 15 MPa?m. Although the start of cracking was detected by potential drop, the extent of cracking was measured directly on the crack faces. The values of incubation time to the start of cracking were highly variable but Vc was well behaved. The values of Vc were normally distributed with a range varying from a factor of 1.2 to 5.2. At 250°C the mean value of Vc from 80 specimens of cold-worked material was 8.9(±1.12)x10-8 m/s and from 41 specimens of heat-treated material the mean value of Vc was3.3(±0.64)x10-8 m/s. Tests were also done at six other temperatures between 144 and 283°C, using up to 22 specimens at each temperature. Both materials had an Arrhenius-type temperature dependence, Vc=Aexp(-Q/RT). The use of strictly defined and coordinated experimental procedures gave a consistent set of Vc values, allowing effective comparison of results obtained in different national laboratories and resulting in good correlations between the DHC velocity values and differences in strength, crystallographic texture, and distribution of ?-phase in the test materials.
Author: J. R. Theaker
Author: