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2009-01-04 Metallurgy - post heating: The preheating is application of heat to a base metal immediately before welding. Preheating helps reduce hardness in the metal. And the application of heat to the weld immediately after welding is...
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2008-12-31 Metallurgy - Yeild Strength of Stainless: For such high tensile strengths, your choice is limited to the martensitic grades of stainless steel since ferritic and austenitic grades cannot meet these requirements. Indeed there are some austenitic...
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2008-12-09 Metallurgy - Content of Stainless Steel: As much as I am concerned, there is no special alloying element added to make stainless steels shinier. After cold rolling, most grades of stainless steel are bright annealed which is a high temperature...
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2008-11-27 Metallurgy - processing of gold: Gold extraction is a highly technical process with many steps Kindly search in www.google.com and you will get preliminary details about Gold extraction methods there. Gold is extracted by breaking...
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2008-11-25 Metallurgy - metal structure: Iron is a metal with polymorphism structure. Each structure stable in the range of temperature, for example delta-iron with bcc structure in the range of 1538-1394C changes to gamma -Iron with fcc in the...
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