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

Hong Luo; Qiang Yu; Chaofang Dong; Gang Sha; Zhenbao Liu; Jianxiong Liang; Li Wang; Gang Han; Xiaogang Li

doi:10.1016/j.corsci.2018.04.032

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

Hong Luo
, Qiang Yu
, Chaofang Dong^*
, Gang Sha
, Zhenbao Liu
, Jianxiong Liang
, Li Wang
, Gang Han
, Xiaogang Li

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

140 Scopus citations

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.

Original language	English
Pages (from-to)	185-196
Number of pages	12
Journal	Corrosion Science
Volume	139
DOIs	https://doi.org/10.1016/j.corsci.2018.04.032
State	Published - 15 Jul 2018
Externally published	Yes

Keywords

A. Stainless steel
B. TEM
B. XPS
C. Passive films

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10.1016/j.corsci.2018.04.032

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title = "Influence of the aging time on the microstructure and electrochemical behaviour of a 15-5PH ultra-high strength stainless 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.",

keywords = "A. Stainless steel, B. TEM, B. XPS, C. Passive films",

author = "Hong Luo and Qiang Yu and Chaofang Dong and Gang Sha and Zhenbao Liu and Jianxiong Liang and Li Wang and Gang Han and Xiaogang Li",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = jul,

day = "15",

doi = "10.1016/j.corsci.2018.04.032",

language = "英语",

volume = "139",

pages = "185--196",

journal = "Corrosion Science",

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TY - JOUR

T1 - Influence of the aging time on the microstructure and electrochemical behaviour of a 15-5PH ultra-high strength stainless steel

AU - Luo, Hong

AU - Yu, Qiang

AU - Dong, Chaofang

AU - Sha, Gang

AU - Liu, Zhenbao

AU - Liang, Jianxiong

AU - Wang, Li

AU - Han, Gang

AU - Li, Xiaogang

PY - 2018/7/15

Y1 - 2018/7/15

N2 - 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.

AB - 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.

KW - A. Stainless steel

KW - B. TEM

KW - B. XPS

KW - C. Passive films

UR - https://www.scopus.com/pages/publications/85046833421

U2 - 10.1016/j.corsci.2018.04.032

DO - 10.1016/j.corsci.2018.04.032

M3 - 文章

AN - SCOPUS:85046833421

SN - 0010-938X

VL - 139

SP - 185

EP - 196

JO - Corrosion Science

JF - Corrosion Science

ER -

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

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Keywords

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