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  Influence of the aging time on the microstructure and electrochemical behaviour of a 15-5PH ultra-high strength stainless steel

Luo, H., Yu, Q., Dong, C., Sha, G., Liu, Z., Liang, J., et al. (2018). Influence of the aging time on the microstructure and electrochemical behaviour of a 15-5PH ultra-high strength stainless steel. Corrosion Science, 139, 185-196. doi:10.1016/j.corsci.2018.04.032.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-E615-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-A5F5-F
Genre: Journal Article

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 Creators:
Luo, Hong1, 2, Author              
Yu, Qiang2, 3, Author              
Dong, Chaofang2, Author              
Sha, Gang4, Author              
Liu, Zhenbao5, Author              
Liang, Jianxiong5, Author              
Wang, Li2, Author              
Han, Gang2, Author              
Li, Xiaogang2, Author              
Affiliations:
1Alloy Design and Thermomechanical Processing, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863383              
2Institute of Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, 100083, China, ou_persistent22              
3Valin Lysteel Corporation, Loudi, 417009, China, ou_persistent22              
4School of Materials Science & Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China, ou_persistent22              
5Institute for Special Steel Central Iron and Steel Research, Beijing, 100081, China, ou_persistent22              

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Free keywords: Chlorine compounds; Microstructure; Nanoparticles; Precipitation (chemical), Chloride solutions; Cu species; Electrochemical behaviour; Micro-structure evolutions; Passive films; Pitting resistance; Semiconductive; Ultra high strengths, High strength steel
 Abstract: The effect of the aging time at 500 °C on the microstructure evolution and electrochemical behaviour of 15-5PH ultra-high strength martensitic stainless steel is presented. The results show that Cu-rich clusters and (Cu, Nb)-rich nanoparticles are observed from 1 min to 240 min. The aging time influences the pitting resistance and semiconductive behaviour of the passive film in a chloride solution. The disappearance of Cu species in the passive film after 240 min is attributed to the precipitation of Cu-rich nanoparticles. Moreover, the variations in the Cr/Fe ratio and dehydration effect with the aging time are discussed. © 2018 Elsevier Ltd

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Language(s): eng - English
 Dates: 2018-07-15
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.corsci.2018.04.032
BibTex Citekey: Luo2018185
 Degree: -

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Title: Corrosion Science
  Abbreviation : Corros. Sci.
Source Genre: Journal
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Publ. Info: Amsterdam : Pergamon
Pages: - Volume / Issue: 139 Sequence Number: - Start / End Page: 185 - 196 Identifier: ISSN: 0010-938X
CoNE: /journals/resource/954925393343