Effect of YAl                         2                          particles on the corrosion behavior of Mg-Li matrix composite in NaCl solution

Zihan Chen; Chonggao Bao; Guoqing Wu; Yongxin Jian; Li Zhang

doi:10.3390/ma12030549

Effect of YAl ₂ particles on the corrosion behavior of Mg-Li matrix composite in NaCl solution

Zihan Chen
, Chonggao Bao
, Guoqing Wu
, Yongxin Jian
, Li Zhang

School of Materials Science and Engineering

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

11 Scopus citations

Abstract

The strength of Mg-Li alloy is greatly improved by the composite strengthening of intermetallic compound YAl ₂ particles, but the low corrosion resistance of Mg-Li alloy is still the main factor that restricts the application of the alloy and its composites. In this paper, the effect of YAl ₂ particles on the corrosion behavior of Mg-Li alloy was systematically investigated. The results showed that the corrosion resistance of YAl ₂ p/LA143 composite could be significantly improved, accounting for the formation of a transitional interface layer by adding YAl ₂ particles. The diffusion of yttrium and aluminum atoms from YAl ₂ particulates improved the stability of the surface film and enhanced the adhesion between the corrosion products and the substrate, which hindered further expansion of pitting.

Original language	English
Article number	549
Journal	Materials
Volume	12
Issue number	3
DOIs	https://doi.org/10.3390/ma12030549
State	Published - 12 Feb 2019

Keywords

EIS
Intermetallics
Magnesium
Metal matrix composites
Polarization
XPS

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10.3390/ma12030549

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title = " Effect of YAl 2 particles on the corrosion behavior of Mg-Li matrix composite in NaCl solution ",

abstract = " The strength of Mg-Li alloy is greatly improved by the composite strengthening of intermetallic compound YAl 2 particles, but the low corrosion resistance of Mg-Li alloy is still the main factor that restricts the application of the alloy and its composites. In this paper, the effect of YAl 2 particles on the corrosion behavior of Mg-Li alloy was systematically investigated. The results showed that the corrosion resistance of YAl 2 p/LA143 composite could be significantly improved, accounting for the formation of a transitional interface layer by adding YAl 2 particles. The diffusion of yttrium and aluminum atoms from YAl 2 particulates improved the stability of the surface film and enhanced the adhesion between the corrosion products and the substrate, which hindered further expansion of pitting.",

keywords = "EIS, Intermetallics, Magnesium, Metal matrix composites, Polarization, XPS",

author = "Zihan Chen and Chonggao Bao and Guoqing Wu and Yongxin Jian and Li Zhang",

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day = "12",

doi = "10.3390/ma12030549",

language = "英语",

volume = "12",

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T1 - Effect of YAl 2 particles on the corrosion behavior of Mg-Li matrix composite in NaCl solution

AU - Chen, Zihan

AU - Bao, Chonggao

AU - Wu, Guoqing

AU - Jian, Yongxin

AU - Zhang, Li

PY - 2019/2/12

Y1 - 2019/2/12

N2 - The strength of Mg-Li alloy is greatly improved by the composite strengthening of intermetallic compound YAl 2 particles, but the low corrosion resistance of Mg-Li alloy is still the main factor that restricts the application of the alloy and its composites. In this paper, the effect of YAl 2 particles on the corrosion behavior of Mg-Li alloy was systematically investigated. The results showed that the corrosion resistance of YAl 2 p/LA143 composite could be significantly improved, accounting for the formation of a transitional interface layer by adding YAl 2 particles. The diffusion of yttrium and aluminum atoms from YAl 2 particulates improved the stability of the surface film and enhanced the adhesion between the corrosion products and the substrate, which hindered further expansion of pitting.

AB - The strength of Mg-Li alloy is greatly improved by the composite strengthening of intermetallic compound YAl 2 particles, but the low corrosion resistance of Mg-Li alloy is still the main factor that restricts the application of the alloy and its composites. In this paper, the effect of YAl 2 particles on the corrosion behavior of Mg-Li alloy was systematically investigated. The results showed that the corrosion resistance of YAl 2 p/LA143 composite could be significantly improved, accounting for the formation of a transitional interface layer by adding YAl 2 particles. The diffusion of yttrium and aluminum atoms from YAl 2 particulates improved the stability of the surface film and enhanced the adhesion between the corrosion products and the substrate, which hindered further expansion of pitting.

KW - EIS

KW - Intermetallics

KW - Magnesium

KW - Metal matrix composites

KW - Polarization

KW - XPS

UR - https://www.scopus.com/pages/publications/85061501131

U2 - 10.3390/ma12030549

DO - 10.3390/ma12030549

M3 - 文章

AN - SCOPUS:85061501131

SN - 1996-1944

VL - 12

JO - Materials

JF - Materials

IS - 3

M1 - 549

ER -

Effect of YAl ₂ particles on the corrosion behavior of Mg-Li matrix composite in NaCl solution

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Keywords

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