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Welding: Principles and Applicatio...
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Welding: Principles and Applicatio...
Why is the formation of martensite a problem when welding on high carbon steels?
To discuss:
During welding of high carbon steels, the formation of martensite structure is an issue.
Martensite is the hardest structure that is formed by the transformation of austenite by rapid cooling below a temperature about 400°F to 600°F. Martensite formation in an alloy imposes greater hardness and strength but reduces the ductility and toughness.
Steels having carbon percentage between 0.60-2%is known as high carbon steels. It is most widely used as a tool material due to its high strength and excellent wear resistance properties. However, its usage as a structural material is very limited due to its low weldability...
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