联合添加微量 Sc、Zr 元素对 B4C / 7075Al 复合材料力学性能和腐蚀行为的影响

Huimin Han; Longtao Jiang; Zhenlong Chao; Bingzhuo Han; Chunyu Wang

doi:10.16577/j.issn.1001-1560.2024.0076

联合添加微量 Sc、Zr 元素对 B₄C / 7075Al 复合材料力学性能和腐蚀行为的影响

Translated title of the contribution: Effect of Combined Addition of Trace Sc and Zr Elements on Mechanical Properties and Corrosion Behavior of B₄ C/7075Al Composite

Huimin Han
, Longtao Jiang^*
, Zhenlong Chao
, Bingzhuo Han
, Chunyu Wang

^*Corresponding author for this work

Harbin Institute of Technology
School of Materials Science and Engineering, Harbin Institute of Technology Weihai

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

Abstract

The key to restrict the engineering application of high - strength B₄ C / Al composites is corrosion, and adding trace alloying elements is an effective measure to improve corrosion resistance. In this work, the B₄ C / 7075 and B₄ C / 7075 - 0.15Sc - 0.35Zr composite containing trace Sc and Zr elements were prepared by pressure infiltration. The influence of combined addition of Sc and Zr on microstructure, mechanical properties and corrosion behavior of B₄ C / 7075 composites was investigated by using scanning electron microscopy, transmission electron microscopy, bending performance testing, tensile performance testing, neutral salt spray testing and electrochemical testing. Results showed that adding Sc and Zr elements to B₄ C / 7075 composites, the higher bending strength and tensile strength values were obtained in B₄ C / 7075 - 0.15Sc -0.35Zr. In addition, the corrosion rate and the corrosion current (J_corr ) decreased, indicating that the corrosion resistance of B₄ C / Al composite increased, which might be caused by that the grain boundary precipitates in the composite material were small and discontinuous after adding Sc and Zr elements, and the precipitate free zone (PFZ) disappeared.

Translated title of the contribution	Effect of Combined Addition of Trace Sc and Zr Elements on Mechanical Properties and Corrosion Behavior of B₄ C/7075Al Composite
Original language	Chinese (Traditional)
Pages (from-to)	39-46 and 55
Journal	Cailiao Baohu/Materials Protection
Volume	57
Issue number	4
DOIs	https://doi.org/10.16577/j.issn.1001-1560.2024.0076
State	Published - 15 Apr 2024
Externally published	Yes

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title = "联合添加微量 Sc、Zr 元素对 B4C / 7075Al 复合材料力学性能和腐蚀行为的影响",

abstract = "The key to restrict the engineering application of high - strength B4 C / Al composites is corrosion, and adding trace alloying elements is an effective measure to improve corrosion resistance. In this work, the B4 C / 7075 and B4 C / 7075 - 0.15Sc - 0.35Zr composite containing trace Sc and Zr elements were prepared by pressure infiltration. The influence of combined addition of Sc and Zr on microstructure, mechanical properties and corrosion behavior of B4 C / 7075 composites was investigated by using scanning electron microscopy, transmission electron microscopy, bending performance testing, tensile performance testing, neutral salt spray testing and electrochemical testing. Results showed that adding Sc and Zr elements to B4 C / 7075 composites, the higher bending strength and tensile strength values were obtained in B4 C / 7075 - 0.15Sc -0.35Zr. In addition, the corrosion rate and the corrosion current (Jcorr ) decreased, indicating that the corrosion resistance of B4 C / Al composite increased, which might be caused by that the grain boundary precipitates in the composite material were small and discontinuous after adding Sc and Zr elements, and the precipitate free zone (PFZ) disappeared.",

keywords = "BC/7075 composite, PFZ, Sc, Zr, corrosion behavior, mechanical properties",

author = "Huimin Han and Longtao Jiang and Zhenlong Chao and Bingzhuo Han and Chunyu Wang",

year = "2024",

month = apr,

day = "15",

doi = "10.16577/j.issn.1001-1560.2024.0076",

language = "繁体中文",

volume = "57",

pages = "39--46 and 55",

journal = "Cailiao Baohu/Materials Protection",

issn = "1001-1560",

publisher = "China Academy of Machinery Wuhan Research Institute of Materials Protection Co., Ltd",

number = "4",

}

TY - JOUR

T1 - 联合添加微量 Sc、Zr 元素对 B4C / 7075Al 复合材料力学性能和腐蚀行为的影响

AU - Han, Huimin

AU - Jiang, Longtao

AU - Chao, Zhenlong

AU - Han, Bingzhuo

AU - Wang, Chunyu

PY - 2024/4/15

Y1 - 2024/4/15

N2 - The key to restrict the engineering application of high - strength B4 C / Al composites is corrosion, and adding trace alloying elements is an effective measure to improve corrosion resistance. In this work, the B4 C / 7075 and B4 C / 7075 - 0.15Sc - 0.35Zr composite containing trace Sc and Zr elements were prepared by pressure infiltration. The influence of combined addition of Sc and Zr on microstructure, mechanical properties and corrosion behavior of B4 C / 7075 composites was investigated by using scanning electron microscopy, transmission electron microscopy, bending performance testing, tensile performance testing, neutral salt spray testing and electrochemical testing. Results showed that adding Sc and Zr elements to B4 C / 7075 composites, the higher bending strength and tensile strength values were obtained in B4 C / 7075 - 0.15Sc -0.35Zr. In addition, the corrosion rate and the corrosion current (Jcorr ) decreased, indicating that the corrosion resistance of B4 C / Al composite increased, which might be caused by that the grain boundary precipitates in the composite material were small and discontinuous after adding Sc and Zr elements, and the precipitate free zone (PFZ) disappeared.

AB - The key to restrict the engineering application of high - strength B4 C / Al composites is corrosion, and adding trace alloying elements is an effective measure to improve corrosion resistance. In this work, the B4 C / 7075 and B4 C / 7075 - 0.15Sc - 0.35Zr composite containing trace Sc and Zr elements were prepared by pressure infiltration. The influence of combined addition of Sc and Zr on microstructure, mechanical properties and corrosion behavior of B4 C / 7075 composites was investigated by using scanning electron microscopy, transmission electron microscopy, bending performance testing, tensile performance testing, neutral salt spray testing and electrochemical testing. Results showed that adding Sc and Zr elements to B4 C / 7075 composites, the higher bending strength and tensile strength values were obtained in B4 C / 7075 - 0.15Sc -0.35Zr. In addition, the corrosion rate and the corrosion current (Jcorr ) decreased, indicating that the corrosion resistance of B4 C / Al composite increased, which might be caused by that the grain boundary precipitates in the composite material were small and discontinuous after adding Sc and Zr elements, and the precipitate free zone (PFZ) disappeared.

KW - BC/7075 composite

KW - PFZ

KW - Sc

KW - Zr

KW - corrosion behavior

KW - mechanical properties

UR - https://www.scopus.com/pages/publications/105007733848

U2 - 10.16577/j.issn.1001-1560.2024.0076

DO - 10.16577/j.issn.1001-1560.2024.0076

M3 - 文章

AN - SCOPUS:105007733848

SN - 1001-1560

VL - 57

SP - 39-46 and 55

JO - Cailiao Baohu/Materials Protection

JF - Cailiao Baohu/Materials Protection

IS - 4

ER -

联合添加微量 Sc、Zr 元素对 B₄C / 7075Al 复合材料力学性能和腐蚀行为的影响

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