With more and more special alloys being developed, choosing the right methods for welding and fabrication can seem a daunting task. For example, the heat generated during welding of corrosion-resistant materials can result in metallurgical structure changes that can alter the materials’ corrosion characteristics. Or the welded structure design and the techniques used to weld the structures can impact the useful life of the component.
This box is designed to help you get to grips with these sorts of issues and to help you find the answer to such questions as: What are the pros and cons of each type of special metal weldment? How does the correct treatment of duplex differ from that of austenitic? What is the correct procedure for maintaining the heat input range when welding duplex? With duplex steels, is preheating recommended, and if so, under what circumstances? What starting material should be used? What is the most appropriate method of cleaning and preparation before welding? Which dissimilar metal welds are possible? The answer to these questions, and more, can be answered by following the links below.
This box contains technical papers along with articles designed to help you solve practical problems. It also provides a number of links to welding & fabrication content in the special metals boxes on this site.
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