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Lessons learnt from failures of ferrous weldments
Lessons learnt from failures of ferrous weldments
- Publication Year :
- 2009
- Publisher :
- Elsevier, 2009.
-
Abstract
- Iron-based alloys are widely used in the engineering industries due to their ease of fabrication and ability to meet the desired properties. A variety of ferrous alloys with varying chemical composition have been developed in the recent years for achieving desired results. Among the known fabrication techniques, welding is a reliable, cost-effective and efficient metal joining process. A number of welding processes have been developed over the years to meet industry's stringent specifications and requirements. However, most of the industrial failures have been weld related. In spite of utmost care in design, selection of materials and fabrication route and judicious choice of operating conditions, degradation of the fabricated components takes place in service leading to failures at times. Weld defects that occur during fabrication can be avoided by careful selection of welding process. The defects formed during fabrication or during service can be detected by a variety of non-destructive testing methods. This chapter discusses the various aspects of welding related degradation of commonly used ferrous alloys with an aim to reduce their failures. Case studies to elucidate the different kinds of failures and a summary of a few important failure investigation campaigns undertaken at the authors’ laboratory are highlighted. Recommendations to avoid such failures are brought out in this chapter.
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi...........892e65947fb116d8ab5e8de7f986d48d
- Full Text :
- https://doi.org/10.1533/9781845695453.2.314