The effect of nitrogen and heat treatment on the microstructure and tensile properties of 25Cr-7Ni-1.5Mo-3W-xN duplex stainless steel casting

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The effects of nitrogen content and solution treatment temperature on the microstructure and tensile properties of 25Cr-7Ni-1.5Mo-3W-xN Duplex stainless steel (DSS) castings were investigated. An increase of nitrogen decreases the ferrite volume fraction and also can cause gas defects and change the solidification mode from ferrite single phase to ferrite-austenite mode. An increase of heat treating temperature increases the ferrite volume fraction, which decreases the tensile strength and the elongation but increases the yield strength almost linearly. (C) 2001 Elsevier Science B.V. All rights reserved.
Publisher
Elsevier Science Sa
Issue Date
2001-01
Language
English
Article Type
Article
Keywords

ALLOYS

Citation

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.297, no.1, pp.78 - 84

ISSN
0921-5093
URI
http://hdl.handle.net/10203/78912
Appears in Collection
MS-Journal Papers(저널논문)
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