... to determine the effects of corrosion potential, water purity, heat and orientation, stress intensity factor and periodic partial unloading. stress corrosion cracking crack growth rate high temperature water Alloy X-750 heat treatment microstructure orientation stress intensity factor BWR water...

... ”, “ Understanding and Mitigating Ageing in Nuclear Power Plants ”, Tipping   P G (ed.), Woodhead Publishing , 2010 . 4 Andresen   P.L. and Morra   M.M. , “ SCC of Stainless Steels and Ni Alloys in High Temperature Water ”, Corrosion   64 ( 2008 ), p. 15 - 29 . 5 Andresen   P.L...

... on stress corrosion cracking in BWR water. Stainless steel weld metal thermal aging stress corrosion cracking crack growth high temperature water boiling water reactors INTRODUCTION In the several decades of operating experience, stress corrosion cracking (SCC) incidents have occurred in a wide...

... microstructure stress corrosion cracking crack growth high temperature water INTRODUCTION RESULTS AND DISCUSSION Alloy Base Metal Designs rely primarily on resistance to crack initiation for adequate component lifetime, but there are many materials and thousands of cases where the expected resistance...

... of a range of ferritic steels being considered as candidate alloys for fuel cladding and structural components. Ferritic steel ferritic stainless steel cold work stress corrosion cracking crack growth high temperature water INTRODUCTION This experimental steel has nanometer dimension grain size...

... of greater concern, i.e., related to weld repairs and welds with re-fuse layers, both of which increase the residual strain levels. Alloy 690 Alloy 52/152 weld metals cold work microstructure stress corrosion cracking crack growth high temperature water INTRODUCTION Stress corrosion cracking (SCC) has...

...Nuclear materials ferritic steels stress corrosion cracking crack growth rate high temperature water INTRODUCTION Austenitic stainless steels such as types 304 and 316 are highly susceptible to stress corrosion cracking in chloride containing environments, especially at temperatures higher...

...-59.07Ni-0.04C-0.33Mn-0.02Si-0.04Cu-0.47Ti-0.01Nb-<0.1Co-0.001S. The Alloy 690 was provided by Argonne National Laboratory. Description of Test Equipment and Methods Figure 1 schematically shows the high temperature water loop system used for SCC testing. It has a test section size of 1.6 inch dia. x...

.... Alloy 152/52/52i weld metals always exhibited low growth rates, apart from a weld that was further cold worked by 20%, which grew at 7 x 10^-9 mm/s. Stress corrosion cracking crack growth Alloy 690 Alloy 52/152 weld metals cold work high temperature water microstructure INTRODUCTION...

... CT specimens in high temperature water. The tests were designed to sustain stress corrosion crack (SCC) growth over sufficient time to allow hydrogen to permeate throughout the specimen, then slowly increase K to intentionally reproduce the rapid fracture and evaluate the role of hydrogen...

...stress corrosion cracking high temperature water austenitic stainless steel sensitization impurities INTRODUCTION Austenitic stainless steels are structural materials widely used in light water reactors. In general, the SCC resistance of austenitic stainless steels is better in pressurized...

... in high temperature water. Crack propagation rate studies were conducted using four types of ferritic steels in high purity water at 288°C containing dissolved oxygen or dissolved hydrogen. Results show that ferritic steels (5% Cr, 9% Cr, 12%Cr and 17% Cr) are notably more resistant to environmental...

... Worked Stainless Steel in High Temperature Water ”, Corrosion/02 , Paper 02511 , NACE , 2002 . 6 Andresen   P.L. , Angeliu   T.M. , Young   L.M. , Catlin   W.R. and, Horn   R.M. , “ Mechanisms and Kinetics of SCC in Stainless Steels ,” Proc. 10th Int. Symp. on Env. Degradation...

... by which Si could make the SS less resistant to cracking in high temperature water. ⁹ The three mechanisms proposed by Li et al. are: (1) Si may lower the stacking fault energy, and therefore facilitating the coplanar slip and rupturing the protective oxide film, (2) Si may decrease...

... to constant K data. Strong effects (~10X) of corrosion potential were observed, and relatively limited effects (~2X) of 0 – 30 ppb sulfate were observed. Stress corrosion cracking nickel alloy weld metals high temperature water water chemistry Alloy 182 weld metal Alloy 82 weld metal stress intensity...

... equilibrated with the B and Li concentrations of interest. Some adjustment to the chemistry was necessary during the test, primarily related to the sparing solubility of metal cations in high temperature water, which are ion-exchanged with Li⁺, producing a slow increase in Li...

... in the T-S orientation. Abstract Stress corrosion cracking (SCC) of nickel alloys such as Alloy 600 and Alloy 182, 132 and 82 weld metals in high temperature water is important because these materials are widely used in the pressurized water reactor (PWR) primary system. Based on plant experience, SCC...

... microstructural inhomogeneity banding PWR PWSCC high temperature water INTRODUCTION Structural components fabricated from iron- and nickel-base alloys have experienced stress corrosion cracking (SCC) in light water reactor environments [ 1 - 5 ]. The resistance of newer materials to SCC in general...

...Electrocatalysis can achieve the thermodynamically lowest possible corrosion potential, and this results in a low SCC growth rates with minimal negative impact on BWR operation [ 2 , 7 , 11 - 17 ]. This paper summarizes the mechanism by which noble metals act in high temperature water in terms...

...Abstract Stress corrosion cracking (SCC) susceptibility of Type 316L stainless steel (SS) and Type 316 SS was investigated by the creviced bent beam (CBB) method in oxygenated high temperature water at 561K for 500 h to 2000 h. The crack length and depth were measured by a scanning electron...