Enhancing the corrosion resistance of selective laser melted 15-5PH martensite stainless steel via heat treatment

Li Wang; Chaofang Dong; Cheng Man; Decheng Kong; Kui Xiao; Xiaogang Li

doi:10.1016/j.corsci.2019.108427

Enhancing the corrosion resistance of selective laser melted 15-5PH martensite stainless steel via heat treatment

Li Wang
, Chaofang Dong^*
, Cheng Man
, Decheng Kong
, Kui Xiao
, Xiaogang Li

^*Corresponding author for this work

University of Science and Technology Beijing
Ocean University of China

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

111 Scopus citations

Abstract

The microstructural optimization for selective laser melted 15-5PH stainless steel via heat treatment to enhance corrosion resistance was investigated. The results showed that after aging treatment, Cu-rich nanoparticles (about 10 nm) diffusely precipitated, and approximately 18∼25 % austenite was distributed near the molten pool boundary. The surface potential of the austenite was approximately 15 mV higher than that of martensite by scanning Kelvin probe force microscopy. However, the austenite phase disappeared and the new NbC-(Mn, Si)O duplex particles precipitated after solution treatment and aging treatment, which decreased the pitting corrosion resistance and passive film stability of the SLM 15-5PH stainless steel.

Original language	English
Article number	108427
Journal	Corrosion Science
Volume	166
DOIs	https://doi.org/10.1016/j.corsci.2019.108427
State	Published - 15 Apr 2020
Externally published	Yes

Keywords

AFM
Passive film
Polarization
Stainless steel

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10.1016/j.corsci.2019.108427

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title = "Enhancing the corrosion resistance of selective laser melted 15-5PH martensite stainless steel via heat treatment",

abstract = "The microstructural optimization for selective laser melted 15-5PH stainless steel via heat treatment to enhance corrosion resistance was investigated. The results showed that after aging treatment, Cu-rich nanoparticles (about 10 nm) diffusely precipitated, and approximately 18∼25 \% austenite was distributed near the molten pool boundary. The surface potential of the austenite was approximately 15 mV higher than that of martensite by scanning Kelvin probe force microscopy. However, the austenite phase disappeared and the new NbC-(Mn, Si)O duplex particles precipitated after solution treatment and aging treatment, which decreased the pitting corrosion resistance and passive film stability of the SLM 15-5PH stainless steel.",

keywords = "AFM, Passive film, Polarization, Stainless steel",

author = "Li Wang and Chaofang Dong and Cheng Man and Decheng Kong and Kui Xiao and Xiaogang Li",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = apr,

day = "15",

doi = "10.1016/j.corsci.2019.108427",

language = "英语",

volume = "166",

journal = "Corrosion Science",

issn = "0010-938X",

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}

TY - JOUR

T1 - Enhancing the corrosion resistance of selective laser melted 15-5PH martensite stainless steel via heat treatment

AU - Wang, Li

AU - Dong, Chaofang

AU - Man, Cheng

AU - Kong, Decheng

AU - Xiao, Kui

AU - Li, Xiaogang

PY - 2020/4/15

Y1 - 2020/4/15

N2 - The microstructural optimization for selective laser melted 15-5PH stainless steel via heat treatment to enhance corrosion resistance was investigated. The results showed that after aging treatment, Cu-rich nanoparticles (about 10 nm) diffusely precipitated, and approximately 18∼25 % austenite was distributed near the molten pool boundary. The surface potential of the austenite was approximately 15 mV higher than that of martensite by scanning Kelvin probe force microscopy. However, the austenite phase disappeared and the new NbC-(Mn, Si)O duplex particles precipitated after solution treatment and aging treatment, which decreased the pitting corrosion resistance and passive film stability of the SLM 15-5PH stainless steel.

AB - The microstructural optimization for selective laser melted 15-5PH stainless steel via heat treatment to enhance corrosion resistance was investigated. The results showed that after aging treatment, Cu-rich nanoparticles (about 10 nm) diffusely precipitated, and approximately 18∼25 % austenite was distributed near the molten pool boundary. The surface potential of the austenite was approximately 15 mV higher than that of martensite by scanning Kelvin probe force microscopy. However, the austenite phase disappeared and the new NbC-(Mn, Si)O duplex particles precipitated after solution treatment and aging treatment, which decreased the pitting corrosion resistance and passive film stability of the SLM 15-5PH stainless steel.

KW - AFM

KW - Passive film

KW - Polarization

KW - Stainless steel

UR - https://www.scopus.com/pages/publications/85077383242

U2 - 10.1016/j.corsci.2019.108427

DO - 10.1016/j.corsci.2019.108427

M3 - 文章

AN - SCOPUS:85077383242

SN - 0010-938X

VL - 166

JO - Corrosion Science

JF - Corrosion Science

M1 - 108427

ER -

Enhancing the corrosion resistance of selective laser melted 15-5PH martensite stainless steel via heat treatment

Abstract

Keywords

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