Effect of plasma electrolytic oxidation on the hot salt corrosion fatigue behavior of the TC17 titanium alloy

Hailan Shi; Daoxin Liu; Xiaohua Zhang; Weidong Zhao; Zhen Liu; Mengyao Li; Yuting He

doi:10.1002/maco.202112756

Effect of plasma electrolytic oxidation on the hot salt corrosion fatigue behavior of the TC17 titanium alloy

Hailan Shi, Daoxin Liu, Xiaohua Zhang, Weidong Zhao, Zhen Liu, Mengyao Li, Yuting He

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

8 Scopus citations

Abstract

In this paper, the effect of plasma electrolytic oxidation (PEO) on the hot salt corrosion fatigue (HSCF) behavior of the TC17 titanium alloy at 420°C was investigated. Through microstructure characterization and fatigue fracture analysis, combined with a comparative study of its hot salt corrosion behavior, the mechanism of PEO on HSCF behavior was also investigated. The results showed that the high-temperature fatigue resistance of the TC17 titanium alloy was significantly reduced by the deposition of 0.4 mg/cm² of solid NaCl compared with that without a salt coating. This behavior was observed because the corrosion pits caused by hot salt corrosion promoted the initiation of fatigue cracks, and hydrogen penetration promoted the growth of fatigue cracks. However, the HSCF resistance of the TC17 alloy with the PEO ceramic coating could be effectively increased. This was because the PEO ceramic coating with high bonding strength and good compactness effectively inhibited hot salt corrosion damage and delayed the formation of the resident slip zone and hydrogen permeation, thereby inhibiting the initiation and propagation of fatigue cracks.

Original language	English
Pages (from-to)	558-572
Number of pages	15
Journal	Materials and Corrosion
Volume	73
Issue number	4
DOIs	https://doi.org/10.1002/maco.202112756
State	Published - Apr 2022

Keywords

hot salt corrosion
hot salt corrosion fatigue
plasma electrolytic oxidation
solid NaCl
TC17 titanium alloy

Access to Document

10.1002/maco.202112756

Cite this

@article{d3fbf5aff4dc4ced9f8c4d2b74794b41,

title = "Effect of plasma electrolytic oxidation on the hot salt corrosion fatigue behavior of the TC17 titanium alloy",

abstract = "In this paper, the effect of plasma electrolytic oxidation (PEO) on the hot salt corrosion fatigue (HSCF) behavior of the TC17 titanium alloy at 420°C was investigated. Through microstructure characterization and fatigue fracture analysis, combined with a comparative study of its hot salt corrosion behavior, the mechanism of PEO on HSCF behavior was also investigated. The results showed that the high-temperature fatigue resistance of the TC17 titanium alloy was significantly reduced by the deposition of 0.4 mg/cm2 of solid NaCl compared with that without a salt coating. This behavior was observed because the corrosion pits caused by hot salt corrosion promoted the initiation of fatigue cracks, and hydrogen penetration promoted the growth of fatigue cracks. However, the HSCF resistance of the TC17 alloy with the PEO ceramic coating could be effectively increased. This was because the PEO ceramic coating with high bonding strength and good compactness effectively inhibited hot salt corrosion damage and delayed the formation of the resident slip zone and hydrogen permeation, thereby inhibiting the initiation and propagation of fatigue cracks.",

keywords = "hot salt corrosion, hot salt corrosion fatigue, plasma electrolytic oxidation, solid NaCl, TC17 titanium alloy",

author = "Hailan Shi and Daoxin Liu and Xiaohua Zhang and Weidong Zhao and Zhen Liu and Mengyao Li and Yuting He",

note = "Publisher Copyright: {\textcopyright} 2021 Wiley-VCH GmbH.",

year = "2022",

month = apr,

doi = "10.1002/maco.202112756",

language = "英语",

volume = "73",

pages = "558--572",

journal = "Materials and Corrosion",

issn = "0947-5117",

publisher = "John Wiley and Sons Inc",

number = "4",

}

TY - JOUR

T1 - Effect of plasma electrolytic oxidation on the hot salt corrosion fatigue behavior of the TC17 titanium alloy

AU - Shi, Hailan

AU - Liu, Daoxin

AU - Zhang, Xiaohua

AU - Zhao, Weidong

AU - Liu, Zhen

AU - Li, Mengyao

AU - He, Yuting

PY - 2022/4

Y1 - 2022/4

N2 - In this paper, the effect of plasma electrolytic oxidation (PEO) on the hot salt corrosion fatigue (HSCF) behavior of the TC17 titanium alloy at 420°C was investigated. Through microstructure characterization and fatigue fracture analysis, combined with a comparative study of its hot salt corrosion behavior, the mechanism of PEO on HSCF behavior was also investigated. The results showed that the high-temperature fatigue resistance of the TC17 titanium alloy was significantly reduced by the deposition of 0.4 mg/cm2 of solid NaCl compared with that without a salt coating. This behavior was observed because the corrosion pits caused by hot salt corrosion promoted the initiation of fatigue cracks, and hydrogen penetration promoted the growth of fatigue cracks. However, the HSCF resistance of the TC17 alloy with the PEO ceramic coating could be effectively increased. This was because the PEO ceramic coating with high bonding strength and good compactness effectively inhibited hot salt corrosion damage and delayed the formation of the resident slip zone and hydrogen permeation, thereby inhibiting the initiation and propagation of fatigue cracks.

AB - In this paper, the effect of plasma electrolytic oxidation (PEO) on the hot salt corrosion fatigue (HSCF) behavior of the TC17 titanium alloy at 420°C was investigated. Through microstructure characterization and fatigue fracture analysis, combined with a comparative study of its hot salt corrosion behavior, the mechanism of PEO on HSCF behavior was also investigated. The results showed that the high-temperature fatigue resistance of the TC17 titanium alloy was significantly reduced by the deposition of 0.4 mg/cm2 of solid NaCl compared with that without a salt coating. This behavior was observed because the corrosion pits caused by hot salt corrosion promoted the initiation of fatigue cracks, and hydrogen penetration promoted the growth of fatigue cracks. However, the HSCF resistance of the TC17 alloy with the PEO ceramic coating could be effectively increased. This was because the PEO ceramic coating with high bonding strength and good compactness effectively inhibited hot salt corrosion damage and delayed the formation of the resident slip zone and hydrogen permeation, thereby inhibiting the initiation and propagation of fatigue cracks.

KW - hot salt corrosion

KW - hot salt corrosion fatigue

KW - plasma electrolytic oxidation

KW - solid NaCl

KW - TC17 titanium alloy

UR - http://www.scopus.com/inward/record.url?scp=85120440180&partnerID=8YFLogxK

U2 - 10.1002/maco.202112756

DO - 10.1002/maco.202112756

M3 - 文章

AN - SCOPUS:85120440180

SN - 0947-5117

VL - 73

SP - 558

EP - 572

JO - Materials and Corrosion

JF - Materials and Corrosion

IS - 4

ER -

Effect of plasma electrolytic oxidation on the hot salt corrosion fatigue behavior of the TC17 titanium alloy

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this