Study on Electron Beam Welded Joints of Various Stainless Steel Sheets
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概要
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The mechanical properties of electron beam (EB) welded joints of various stainless steel sheets were investigated in comparison with those of TIG arc welded joints, especially from the view point of drawability and formability. The main results obtained are as follows. 1) The width of weld metal at the center of thickness is about 0.5 mm in EB welding and about 4 mm in TIG arc welding. The grain growth in TIG arc weld metal is more remarkable than in EB weld metal in the cases of ferritic stainless steels. 2) The drawability and formability of EB welded joint are the same as those of base metal and superior to those of TIG arc welded joint. 3) When the width of EB weld metal is increased on purpose, its properties are deteriorated on the equal level of TIG arc welded joint. 4) From 1)-3) etc., the reason why the properties of EB welded joint are better than those of arc welded may be attributed to the narrow width of EB weld metal. The change in properties of this weld metal is not revealed by the restraint of the base metal.
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著者
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Yada Hiroshi
Heat Technology Research And Development Laboratories Process Technology Laboratories Ibid
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NISIDA Sinichi
Technical Research Institute, Production Engineering Department, Yawata Works, Nippon Steel Corporat
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Nisida Sinichi
Technical Research Institute Production Engineering Department Yawata Works Nippon Steel Corporation