Failure mechanism of YSZ coatings prepared by EB-PVD under partial penetration of CMAS attacking

Qu Weiwei; Chen Zehao; Li Shusuo; Wu Mengmeng; Pei Yanling; Gong Shengkai

doi:10.1016/j.corsci.2022.110339

Failure mechanism of YSZ coatings prepared by EB-PVD under partial penetration of CMAS attacking

Qu Weiwei
, Chen Zehao
, Li Shusuo
, Wu Mengmeng
, Pei Yanling^*
, Gong Shengkai

^*此作品的通讯作者

科研成果: 期刊稿件 › 文章 › 同行评审

10 引用（Scopus）

摘要

The development of thermal barrier coating has been limited by calcium–magnesium–alumina–silicate (CMAS) corrosion. ~13 wt% YSZ coating under partial penetration of CMAS attacking is used as materials of thermal cycling experiment to exclude the influence of phase transition. Failure modes at boundary of CMAS permeable and impermeable zone at 1100 ℃ and 1250 ℃ are not completely consistent. The boundary of two conditions is inclined to occur vertical, transverse and oblique cracks. However, step-type cracks developed by the vertical crack tip are formed at 1100 ℃, and straight oblique penetrating cracks are formed at 1250 ℃.

源语言	英语
文章编号	110339
期刊	Corrosion Science
卷	203
DOI	https://doi.org/10.1016/j.corsci.2022.110339
出版状态	已出版 - 15 7月 2022

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10.1016/j.corsci.2022.110339

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@article{5581bda4502348728994fa7f7dccb6f4,

title = "Failure mechanism of YSZ coatings prepared by EB-PVD under partial penetration of CMAS attacking",

abstract = "The development of thermal barrier coating has been limited by calcium–magnesium–alumina–silicate (CMAS) corrosion. \textasciitilde{}13 wt\% YSZ coating under partial penetration of CMAS attacking is used as materials of thermal cycling experiment to exclude the influence of phase transition. Failure modes at boundary of CMAS permeable and impermeable zone at 1100 ℃ and 1250 ℃ are not completely consistent. The boundary of two conditions is inclined to occur vertical, transverse and oblique cracks. However, step-type cracks developed by the vertical crack tip are formed at 1100 ℃, and straight oblique penetrating cracks are formed at 1250 ℃.",

keywords = "CMAS, Failure mechanism, Partial penetration, Stress analysis, Thermal cycle",

author = "Qu Weiwei and Chen Zehao and Li Shusuo and Wu Mengmeng and Pei Yanling and Gong Shengkai",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = jul,

day = "15",

doi = "10.1016/j.corsci.2022.110339",

language = "英语",

volume = "203",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Failure mechanism of YSZ coatings prepared by EB-PVD under partial penetration of CMAS attacking

AU - Weiwei, Qu

AU - Zehao, Chen

AU - Shusuo, Li

AU - Mengmeng, Wu

AU - Yanling, Pei

AU - Shengkai, Gong

PY - 2022/7/15

Y1 - 2022/7/15

N2 - The development of thermal barrier coating has been limited by calcium–magnesium–alumina–silicate (CMAS) corrosion. ~13 wt% YSZ coating under partial penetration of CMAS attacking is used as materials of thermal cycling experiment to exclude the influence of phase transition. Failure modes at boundary of CMAS permeable and impermeable zone at 1100 ℃ and 1250 ℃ are not completely consistent. The boundary of two conditions is inclined to occur vertical, transverse and oblique cracks. However, step-type cracks developed by the vertical crack tip are formed at 1100 ℃, and straight oblique penetrating cracks are formed at 1250 ℃.

AB - The development of thermal barrier coating has been limited by calcium–magnesium–alumina–silicate (CMAS) corrosion. ~13 wt% YSZ coating under partial penetration of CMAS attacking is used as materials of thermal cycling experiment to exclude the influence of phase transition. Failure modes at boundary of CMAS permeable and impermeable zone at 1100 ℃ and 1250 ℃ are not completely consistent. The boundary of two conditions is inclined to occur vertical, transverse and oblique cracks. However, step-type cracks developed by the vertical crack tip are formed at 1100 ℃, and straight oblique penetrating cracks are formed at 1250 ℃.

KW - CMAS

KW - Failure mechanism

KW - Partial penetration

KW - Stress analysis

KW - Thermal cycle

UR - https://www.scopus.com/pages/publications/85129330980

U2 - 10.1016/j.corsci.2022.110339

DO - 10.1016/j.corsci.2022.110339

M3 - 文章

AN - SCOPUS:85129330980

SN - 0010-938X

VL - 203

JO - Corrosion Science

JF - Corrosion Science

M1 - 110339

ER -

Failure mechanism of YSZ coatings prepared by EB-PVD under partial penetration of CMAS attacking

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