Understanding the mechanical properties of vanadium carbides: Nano-indentation measurement and first-principles calculations

Lailei Wu; Tiankai Yao; Yachun Wang; Jingwu Zhang; Furen Xiao; Bo Liao

doi:10.1016/j.jallcom.2012.09.014

Understanding the mechanical properties of vanadium carbides: Nano-indentation measurement and first-principles calculations

Lailei Wu
, Tiankai Yao
, Yachun Wang
, Jingwu Zhang
, Furen Xiao
, Bo Liao

Materials and Fuels Complex

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

105 Scopus citations

Abstract

Vanadium carbides (VCs) as reinforced phase effectively improve the mechanical properties of steel and coatings. By means of nano-indentation and first-principles techniques, the mechanical properties of various vanadium carbides were investigated. Our results show that cubic VC in Ni-Cr cast iron possesses a relatively high Vickers hardness (33.3 ± 0.5 GPa) and Young's modulus (436 ± 8 GPa). Furthermore, the mechanical properties and electronic structure of various vanadium carbides, including V₂C, V₄C₃, V₆C₅, and V₈C ₇, were also studied to reveal the effect of carbon content on the mechanical properties of V-C system.

Original language	English
Pages (from-to)	60-64
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	548
DOIs	https://doi.org/10.1016/j.jallcom.2012.09.014
State	Published - Jan 25 2013

Keywords

First-principles
Microstructure
Precipitation
Transition metal alloys and compounds

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10.1016/j.jallcom.2012.09.014

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title = "Understanding the mechanical properties of vanadium carbides: Nano-indentation measurement and first-principles calculations",

abstract = "Vanadium carbides (VCs) as reinforced phase effectively improve the mechanical properties of steel and coatings. By means of nano-indentation and first-principles techniques, the mechanical properties of various vanadium carbides were investigated. Our results show that cubic VC in Ni-Cr cast iron possesses a relatively high Vickers hardness (33.3 ± 0.5 GPa) and Young's modulus (436 ± 8 GPa). Furthermore, the mechanical properties and electronic structure of various vanadium carbides, including V2C, V4C3, V6C5, and V8C 7, were also studied to reveal the effect of carbon content on the mechanical properties of V-C system.",

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author = "Lailei Wu and Tiankai Yao and Yachun Wang and Jingwu Zhang and Furen Xiao and Bo Liao",

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doi = "10.1016/j.jallcom.2012.09.014",

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TY - JOUR

T1 - Understanding the mechanical properties of vanadium carbides

T2 - Nano-indentation measurement and first-principles calculations

AU - Wu, Lailei

AU - Yao, Tiankai

AU - Wang, Yachun

AU - Zhang, Jingwu

AU - Xiao, Furen

AU - Liao, Bo

PY - 2013/1/25

Y1 - 2013/1/25

N2 - Vanadium carbides (VCs) as reinforced phase effectively improve the mechanical properties of steel and coatings. By means of nano-indentation and first-principles techniques, the mechanical properties of various vanadium carbides were investigated. Our results show that cubic VC in Ni-Cr cast iron possesses a relatively high Vickers hardness (33.3 ± 0.5 GPa) and Young's modulus (436 ± 8 GPa). Furthermore, the mechanical properties and electronic structure of various vanadium carbides, including V2C, V4C3, V6C5, and V8C 7, were also studied to reveal the effect of carbon content on the mechanical properties of V-C system.

AB - Vanadium carbides (VCs) as reinforced phase effectively improve the mechanical properties of steel and coatings. By means of nano-indentation and first-principles techniques, the mechanical properties of various vanadium carbides were investigated. Our results show that cubic VC in Ni-Cr cast iron possesses a relatively high Vickers hardness (33.3 ± 0.5 GPa) and Young's modulus (436 ± 8 GPa). Furthermore, the mechanical properties and electronic structure of various vanadium carbides, including V2C, V4C3, V6C5, and V8C 7, were also studied to reveal the effect of carbon content on the mechanical properties of V-C system.

KW - First-principles

KW - Microstructure

KW - Precipitation

KW - Transition metal alloys and compounds

UR - https://www.scopus.com/pages/publications/84867235582

U2 - 10.1016/j.jallcom.2012.09.014

DO - 10.1016/j.jallcom.2012.09.014

M3 - Letter

AN - SCOPUS:84867235582

SN - 0925-8388

VL - 548

SP - 60

EP - 64

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Understanding the mechanical properties of vanadium carbides: Nano-indentation measurement and first-principles calculations

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Keywords

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