The tempering performance of low-alloy steel weldments

Parker, J.D.; Parsons, Adam

doi:10.1016/0308-0161(94)90040-x

Cited by 7 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The speed of plastic strain increases rapidly after the external loading is applied. In this condition, the fracture is based on the transgranular cavities [11,[18][19]. A further study shows the creep failure is associated with ductility because the specimens presented the reduction area to be around ¾ of the cross-section under a high strength condition [11,[18][19].…”

Section: The Cavity Nucleation and Growth Behavior Under High Stress mentioning

confidence: 99%

Review of Creep Cavitation and Rupture of Low Cr Alloy and its Weldment

Pang

et al. 2013

AMR

View full text Add to dashboard Cite

Abstract. This paper presents a review of creep cavitation and rupture of low Cr alloy and its weldment, particular in the heat-affected zone (HAZ). Creep damage is one of the serious problems for the high temperature industry. One of the computational approaches is continuum damage mechanics which has been developed and applied complementary to the experimental approach and assists in the safe operation. However, the existing creep damage constitutive equations are not developed specifically for low stress. Therefore, in order to form the physical bases for the development of creep damage constitutive equation, it is necessary to critically review the creep cavitation and rupture characteristics of low Cr alloy and its weldment.

show abstract

Section: The Cavity Nucleation and Growth Behavior Under High Stress mentioning

confidence: 99%

Review of Creep Cavitation and Rupture of Low Cr Alloy and its Weldment

Pang

et al. 2013

AMR

View full text Add to dashboard Cite

show abstract

“…Prolongation of the service life of key components of fossil-fuelled power plants beyond their original design limit must be accompanied by thorough and extensive monitoring of the actual material state and particularly creep damage. First were tested and repaired the welded joints as the typical weak part of the pipeline due to type IV cracking [1,2], but nowadays the attention also turned to the elbows where the additional stresses increase the risk of damage and/or failure compared to the straight parts of the pipeline. The most popular methods how to access the safe lifetime or time period for the next assessment are based on evaluation of cavitation.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Cavitation Damage in a Pipe Bend Made of 0.5Cr-0.5Mo-0.3V Steel by Optical Metallography and Replica Method

Kuboň

Kosňovská

Rožnovská

2020

DDF

View full text Add to dashboard Cite

Prolongation of the service life of key components of fossil-fuelled power plants beyond their original design limit must be accompanied by thorough and extensive monitoring of the actual material state and particularly creep damage. The extent of cavitation is nowadays routinely tested in-situ by using replica method and its quantification is based on practices stated in VGB-TW 507, NORDTEST NT TR 302 derived from the original Neubauer's classification of cavitation damage. Evaluation of cavitation damage based on the measurement of the number of cavities and/or creep micro-cracks has become a routine activity, but in cases when steel contains large amount of non-metallic inclusions, they can be wrongly identified as cavities and to invalidate the result of calculation of cavitation damage. Comparative analysis of cavitation damage was performed in a pipe bend and its weldment made of a low-alloy 0.5Cr-0.5Mo-0.3V steel creep exposed at 540 °C for more than 225,000 hours by using OM (SEM) and replica method and revealed the comparative extent of cavitation damage decreasing from the outer to inner surface of the pipe wall.

show abstract

High temperature deformation and fracture processes in weldments

Parker

Parsons

1995

International Journal of Pressure Vessels and Piping

View full text Add to dashboard Cite

The tempering performance of low-alloy steel weldments

Cited by 7 publications

References 4 publications

Review of Creep Cavitation and Rupture of Low Cr Alloy and its Weldment

Review of Creep Cavitation and Rupture of Low Cr Alloy and its Weldment

Evaluation of Cavitation Damage in a Pipe Bend Made of 0.5Cr-0.5Mo-0.3V Steel by Optical Metallography and Replica Method

High temperature deformation and fracture processes in weldments

Contact Info

Product

Resources

About