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4Â¥: Originally posted by xchsjtu at 2013-06-22 08:58:02
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Accession number:  20132416414683

  Title:  Research on powder metallurgy high nitrogen stainless steels
  Authors:  Cui, Da Wei1 ; Wang, Jin Long1   
  Author affiliation:  1 Department of machinery, Weifang University, Weifang 261061, China  
  Source title:  Advanced Materials Research
  Abbreviated source title:  Adv. Mater. Res.
  Volume:  690 693
  Monograph title:  Materials Design, Processing and Applications
  Issue date:  2013
  Publication year:  2013
  Pages:  172-175
  Language:  English
  ISSN:  10226680  
  ISBN-13:  9783037856925  
  Document type:  Conference article (CA)
  Conference name:  4th International Conference on Manufacturing Science and Engineering, ICMSE 2013
  Conference date:  March 30, 2013 - March 31, 2013
  Conference location:  Dalian, China
  Conference code:  97228  
  Sponsor:  Northeastern University, China; Harbin Institute of Technology; Jilin University
  Publisher:  Trans Tech Publications Ltd, Kreuzstrasse 10, Zurich-Durnten, CH-8635, Switzerland
  Abstract:  High nitrogen Fe-18Cr-12Mn-3Mo-xN austenitic stainless steels were prepared by mechanical alloying and powder metallurgical pressing-sintering techniques. The microstructures, nitrogen contents and sintering properties of the milled powders and sintered bodies had been also investigated. The results show that high nitrogen and nearly spherical composite powders with good compressibility can be obtained by high-energy vibration ball milling and high temperature nitriding. It is also found that the sintering temperature has a significant effect on the density and the nitrogen content of sintered specimens, and the optimal sintering temperature are determined to be 1250¡ãC, at which a favorable combination of the relative density as high as 97.1% and the final nitrogen content of 0.79wt% in sintered specimens can be obtained. The sintered bodies mainly consist of ¦Ã-austenite, ¦Á-ferrite and the lamellar Cr2N phase. After solution-annealing at 1150¡ãC for 1.5h followed by water-quenching, high nitrogen austenitic stainless steels reveal a fully austenitic structure. © (2013) Trans Tech Publications, Switzerland.
  Number of references:  7
  Main heading:  Sintering  
  Controlled terms:  Austenitic stainless steel  -  Ball milling  -  Mechanical alloying  -  Nitrogen  -  Powder metallurgy  -  Powders  
  Uncontrolled terms:  Austenitic structure  -  High nitrogen stainless steel  -  High-energy vibration  -  High-nitrogen  -  High-nitrogen austenitic stainless steels  -  Powder metallurgical  -  Sintering properties  -  Sintering temperatures  
  Classification code:  531 Metallurgy and Metallography -  533.1 Ore Treatment -  536 Powder Metallurgy -  536.1 Powder Metallurgy Operations -  545.3 Steel -  804 Chemical Products Generally
  DOI:  10.4028/www.scientific.net/AMR.690-693.172
  Database:  Compendex
   Compilation and indexing terms, © 2013 Elsevier Inc.
7Â¥2013-06-22 19:07:28
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