Microstructure, mechanical and tribological properties of NiAl matrix composites with addition of BaO/TiO2 binary oxides

Bo Li; Yimin Gao; Xiaohu Hou; Cong Li; Hongjian Guo; Yunchuan Kang; Yefei Li; Qiaoling Zheng; Siyong Zhao

doi:10.1016/j.triboint.2019.106108

Microstructure, mechanical and tribological properties of NiAl matrix composites with addition of BaO/TiO₂ binary oxides

Bo Li
, Yimin Gao
, Xiaohu Hou
, Cong Li
, Hongjian Guo
, Yunchuan Kang
, Yefei Li
, Qiaoling Zheng
, Siyong Zhao

Xi'an Jiaotong University
Inner Mongolia University of Technology
CAS - Lanzhou Institute of Chemical Physics
Guangxi Great Wall Machineries

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

33 Scopus citations

Abstract

BaO and TiO₂ reacted and produced BaTiO₃ in the process of sintering. As a result, the diffraction peaks of BaTiO₃ became stronger with the increasing BaO/TiO₂ contents. The diffraction peaks of NiAl shifted smaller angle to left with the addition of BaO/TiO₂. Meanwhile, the lattice distortion obviously occurred in the composite structure. The composites with the addition of BaO/TiO₂ presented high microhardness and yield strength as well. The composite with 20% BaO/TiO₂ had the highest microhardness value and yield strength of 474.5 HV and 2786 MPa, respectively. The friction coefficient and wear rate of the composites decreased with the addition of BaO/TiO₂ and the NiAl-30% BaO/TiO₂ composite had the lowest friction coefficient at 800 °C test temperature. The BaTiO₃ was decomposed to BaO and TiO₂ during high temperature sliding.

Original language	English
Article number	106108
Journal	Tribology International
Volume	144
DOIs	https://doi.org/10.1016/j.triboint.2019.106108
State	Published - Apr 2020

Keywords

Binary oxides
Lattice distortion
Lubricating performance
Yield strength

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10.1016/j.triboint.2019.106108

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@article{5744b7a7dfd9408ba55abfb5f68cde67,

title = "Microstructure, mechanical and tribological properties of NiAl matrix composites with addition of BaO/TiO2 binary oxides",

abstract = "BaO and TiO2 reacted and produced BaTiO3 in the process of sintering. As a result, the diffraction peaks of BaTiO3 became stronger with the increasing BaO/TiO2 contents. The diffraction peaks of NiAl shifted smaller angle to left with the addition of BaO/TiO2. Meanwhile, the lattice distortion obviously occurred in the composite structure. The composites with the addition of BaO/TiO2 presented high microhardness and yield strength as well. The composite with 20\% BaO/TiO2 had the highest microhardness value and yield strength of 474.5 HV and 2786 MPa, respectively. The friction coefficient and wear rate of the composites decreased with the addition of BaO/TiO2 and the NiAl-30\% BaO/TiO2 composite had the lowest friction coefficient at 800 °C test temperature. The BaTiO3 was decomposed to BaO and TiO2 during high temperature sliding.",

keywords = "Binary oxides, Lattice distortion, Lubricating performance, Yield strength",

author = "Bo Li and Yimin Gao and Xiaohu Hou and Cong Li and Hongjian Guo and Yunchuan Kang and Yefei Li and Qiaoling Zheng and Siyong Zhao",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2020",

month = apr,

doi = "10.1016/j.triboint.2019.106108",

language = "英语",

volume = "144",

journal = "Tribology International",

issn = "0301-679X",

publisher = "Elsevier Inc.",

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TY - JOUR

T1 - Microstructure, mechanical and tribological properties of NiAl matrix composites with addition of BaO/TiO2 binary oxides

AU - Li, Bo

AU - Gao, Yimin

AU - Hou, Xiaohu

AU - Li, Cong

AU - Guo, Hongjian

AU - Kang, Yunchuan

AU - Li, Yefei

AU - Zheng, Qiaoling

AU - Zhao, Siyong

PY - 2020/4

Y1 - 2020/4

N2 - BaO and TiO2 reacted and produced BaTiO3 in the process of sintering. As a result, the diffraction peaks of BaTiO3 became stronger with the increasing BaO/TiO2 contents. The diffraction peaks of NiAl shifted smaller angle to left with the addition of BaO/TiO2. Meanwhile, the lattice distortion obviously occurred in the composite structure. The composites with the addition of BaO/TiO2 presented high microhardness and yield strength as well. The composite with 20% BaO/TiO2 had the highest microhardness value and yield strength of 474.5 HV and 2786 MPa, respectively. The friction coefficient and wear rate of the composites decreased with the addition of BaO/TiO2 and the NiAl-30% BaO/TiO2 composite had the lowest friction coefficient at 800 °C test temperature. The BaTiO3 was decomposed to BaO and TiO2 during high temperature sliding.

AB - BaO and TiO2 reacted and produced BaTiO3 in the process of sintering. As a result, the diffraction peaks of BaTiO3 became stronger with the increasing BaO/TiO2 contents. The diffraction peaks of NiAl shifted smaller angle to left with the addition of BaO/TiO2. Meanwhile, the lattice distortion obviously occurred in the composite structure. The composites with the addition of BaO/TiO2 presented high microhardness and yield strength as well. The composite with 20% BaO/TiO2 had the highest microhardness value and yield strength of 474.5 HV and 2786 MPa, respectively. The friction coefficient and wear rate of the composites decreased with the addition of BaO/TiO2 and the NiAl-30% BaO/TiO2 composite had the lowest friction coefficient at 800 °C test temperature. The BaTiO3 was decomposed to BaO and TiO2 during high temperature sliding.

KW - Binary oxides

KW - Lattice distortion

KW - Lubricating performance

KW - Yield strength

UR - https://www.scopus.com/pages/publications/85075979506

U2 - 10.1016/j.triboint.2019.106108

DO - 10.1016/j.triboint.2019.106108

M3 - 文章

AN - SCOPUS:85075979506

SN - 0301-679X

VL - 144

JO - Tribology International

JF - Tribology International

M1 - 106108

ER -

Microstructure, mechanical and tribological properties of NiAl matrix composites with addition of BaO/TiO₂ binary oxides

Abstract

Keywords

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