Microstructural and mechanical characterization of multiphase Nb-based composites from Nb-Ti-C-B system

Xinjiang Zhang; Xiaodong He; Chenglei Fan; Yibin Li; Guangping Song; Yue Sun; Jianping Huang

doi:10.1016/j.ijrmhm.2013.03.010

Microstructural and mechanical characterization of multiphase Nb-based composites from Nb-Ti-C-B system

Xinjiang Zhang
, Xiaodong He
, Chenglei Fan
, Yibin Li^*
, Guangping Song
, Yue Sun
, Jianping Huang

^*Corresponding author for this work

Harbin Institute of Technology

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

15 Scopus citations

Abstract

The microstructures and mechanical properties of novel multiphase Nb-based composites from Nb-Ti-C-B system have been investigated. The microstructures were characterized using scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The composites contain Nb solid solution, (Nb,Ti)B boride and (Nb,Ti)C carbide phases. The hybrid (Nb,Ti)B and (Nb,Ti)C together with Nb solid solution form the network microstructure. The composites exhibit high hardness and strength while maintaining desirable fracture toughness at room temperature. Boride and carbide phases effectively improve the strength and hardness of the composites, while Nb solid solution toughens the composites. Higher boron contents increase the hardness and strength, but decrease the toughness.

Original language	English
Pages (from-to)	185-190
Number of pages	6
Journal	International Journal of Refractory Metals and Hard Materials
Volume	41
DOIs	https://doi.org/10.1016/j.ijrmhm.2013.03.010
State	Published - Nov 2013

Keywords

Fractography
Mechanical properties
Microstructure
Nb-based composites

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10.1016/j.ijrmhm.2013.03.010

Cite this

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title = "Microstructural and mechanical characterization of multiphase Nb-based composites from Nb-Ti-C-B system",

abstract = "The microstructures and mechanical properties of novel multiphase Nb-based composites from Nb-Ti-C-B system have been investigated. The microstructures were characterized using scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The composites contain Nb solid solution, (Nb,Ti)B boride and (Nb,Ti)C carbide phases. The hybrid (Nb,Ti)B and (Nb,Ti)C together with Nb solid solution form the network microstructure. The composites exhibit high hardness and strength while maintaining desirable fracture toughness at room temperature. Boride and carbide phases effectively improve the strength and hardness of the composites, while Nb solid solution toughens the composites. Higher boron contents increase the hardness and strength, but decrease the toughness.",

keywords = "Fractography, Mechanical properties, Microstructure, Nb-based composites",

author = "Xinjiang Zhang and Xiaodong He and Chenglei Fan and Yibin Li and Guangping Song and Yue Sun and Jianping Huang",

year = "2013",

month = nov,

doi = "10.1016/j.ijrmhm.2013.03.010",

language = "英语",

volume = "41",

pages = "185--190",

journal = "International Journal of Refractory Metals and Hard Materials",

issn = "0263-4368",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Microstructural and mechanical characterization of multiphase Nb-based composites from Nb-Ti-C-B system

AU - Zhang, Xinjiang

AU - He, Xiaodong

AU - Fan, Chenglei

AU - Li, Yibin

AU - Song, Guangping

AU - Sun, Yue

AU - Huang, Jianping

PY - 2013/11

Y1 - 2013/11

N2 - The microstructures and mechanical properties of novel multiphase Nb-based composites from Nb-Ti-C-B system have been investigated. The microstructures were characterized using scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The composites contain Nb solid solution, (Nb,Ti)B boride and (Nb,Ti)C carbide phases. The hybrid (Nb,Ti)B and (Nb,Ti)C together with Nb solid solution form the network microstructure. The composites exhibit high hardness and strength while maintaining desirable fracture toughness at room temperature. Boride and carbide phases effectively improve the strength and hardness of the composites, while Nb solid solution toughens the composites. Higher boron contents increase the hardness and strength, but decrease the toughness.

AB - The microstructures and mechanical properties of novel multiphase Nb-based composites from Nb-Ti-C-B system have been investigated. The microstructures were characterized using scanning electron microscopy, transmission electron microscopy and X-ray diffraction. The composites contain Nb solid solution, (Nb,Ti)B boride and (Nb,Ti)C carbide phases. The hybrid (Nb,Ti)B and (Nb,Ti)C together with Nb solid solution form the network microstructure. The composites exhibit high hardness and strength while maintaining desirable fracture toughness at room temperature. Boride and carbide phases effectively improve the strength and hardness of the composites, while Nb solid solution toughens the composites. Higher boron contents increase the hardness and strength, but decrease the toughness.

KW - Fractography

KW - Mechanical properties

KW - Microstructure

KW - Nb-based composites

UR - https://www.scopus.com/pages/publications/84884350325

U2 - 10.1016/j.ijrmhm.2013.03.010

DO - 10.1016/j.ijrmhm.2013.03.010

M3 - 文章

AN - SCOPUS:84884350325

SN - 0263-4368

VL - 41

SP - 185

EP - 190

JO - International Journal of Refractory Metals and Hard Materials

JF - International Journal of Refractory Metals and Hard Materials

ER -

Microstructural and mechanical characterization of multiphase Nb-based composites from Nb-Ti-C-B system

Abstract

Keywords

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