Weld repair of creep damaged steels
No Thumbnail Available
Date
1996-02-04
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
New Zealand Welding Committee
Abstract
This paper reviews a current three year Cooperative Research Centre project titled "Welding of Thermally Modified Structures" and describes some of the results achieved. The project was commenced in June 1993 with support from ANSTO, CSIRO, BHP, University of Wollongong and the CRC for Materials, Welding and Joining with the aim of quantifying the effects of performing repair welds on materials which have operated for extended periods at elevated temperature. Welding is increasingly used for performing repairs, replacements, retrofits and modifications to elevated temperature plant, however, the effects of these repairs on the ultimate life of a component are poorly understood. Details are presented of the three ex-service materials chosen for the project; a carbon steel and two low alloy steels. Initial results are also reported on the characterisation of repair welds by microscopy, toughness and creep testing and the use of finite element creep modelling to predict the behaviour of it repair welded joints during high temperature service.
Description
Physical copy held by ANSTO at DDC: 671.52/13
Keywords
Welding, Steels, ANSTO, Materials, Creep, Carbon steels, Low alloy steels
Citation
Croker, A. B. L., Finlay, M. R., & Law. M. (1996). Weld repair of creep damaged steels. Paper presented to the IIW Asian Pacific Welding Congress, 4-9 February 1996, Auckland, New Zealand. In IIW Asian Pacific Welding Congress, 4-9 February 1996, Auckland, New Zealand, (Vol. 2, pp. 635-645).