An overview of materials degradation by stress corrosion in PWRs

Scott, Peter

doi:10.1533/9781845693466.1.3

Cited by 10 publications

(2 citation statements)

References 13 publications

(16 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, the moving heat source q is heat supplied to the weldment, which can be modelled as q(j,y,z), in which j5xzut. The corresponding heat transmission can be computed from equation (1).…”

Section: Construction Of Welding Modelmentioning

confidence: 99%

“…As a result, serious doubts were raised as to its suitability for such critical applications as nuclear power plant components. 1,2 Researchers have generally resolved this safety issue through the use of alternative materials 3 (e.g. Alloy 690, having a higher chromium content and lower carbon content than Alloy 600) or the application of more sophisticated welding techniques such as laser beam welding (LBW) or electron beam welding.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

3D numerical study of effects of temperature field on sensitisation of Alloy 690 butt welds fabricated by gas tungsten arc welding and laser beam welding

Lee

Chen

2010

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

This study examines the effects of the temperature field on the sensitisation of Alloy 690 butt welds fabricated using the gas tungsten arc welding (GTAW) method and the laser beam welding (LBW) method respectively. The welding thermal cycles of the two welding methods are simulated using ANSYS software based upon a moving heat source model. The validity of the numerical model is confirmed by comparing the simulation results with the corresponding experimental findings. Agreement is found between the numerical results for the temperature field and the experimental temperature measurements. In addition, it is shown that the LBW weldment experiences a more rapid heating and cooling effect than the GTAW weldment, and therefore has both a smaller heat affected zone and a narrower sensitisation region. Thus, the validity and general applicability of the thermal welding model are confirmed.

show abstract

“…Thus, the moving heat source q is heat supplied to the weldment, which can be modelled as q(j,y,z), in which j5xzut. The corresponding heat transmission can be computed from equation (1).…”

Section: Construction Of Welding Modelmentioning

confidence: 99%