Vickers and knoop micro-hardness behavior of coarse-and ultrafine-grained titanium

K. P. Sanosh; A. Balakrishnan; L. Francis; T. N. Kim

doi:10.1016/S1005-0302(10)60145-4

Vickers and knoop micro-hardness behavior of coarse-and ultrafine-grained titanium

K. P. Sanosh^*, A. Balakrishnan, L. Francis, T. N. Kim

^*Corresponding author for this work

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

26 Scopus citations

Abstract

The present study focuses on the relationship of hardness with grain size for commercially pure titanium (Cp-Ti) and ultra fine grained titanium (UFG-Ti) produced by equal channel angular process (ECAP) of Cp-Ti). Vickers and Knoop indentations of UFG-Ti at different loads was ∼2.5 times harder than those of Cp-Ti. X-ray diffraction (XRD) analysis showed peak broadening in UFG-Ti due to reduced grain size and micro-lattice strains. Scanning electron microscopy (SEM) revealed that ECAP had reduced the grain size of Cp-Ti by ∼10 times. Weibull statistics showed UFG-Ti with lower dispersion in hardness values compare to Cp-Ti indicating a more uniform microstructure.

Original language	English (US)
Pages (from-to)	904-907
Number of pages	4
Journal	Journal of Materials Science and Technology
Volume	26
Issue number	10
DOIs	https://doi.org/10.1016/S1005-0302(10)60145-4
State	Published - 2010
Externally published	Yes

Keywords

Hardness
Knoop
Titanium
Ultrafine-grained
Vickers

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Mechanical Engineering
Polymers and Plastics
Metals and Alloys
Materials Chemistry

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10.1016/S1005-0302(10)60145-4

Cite this

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title = "Vickers and knoop micro-hardness behavior of coarse-and ultrafine-grained titanium",

abstract = "The present study focuses on the relationship of hardness with grain size for commercially pure titanium (Cp-Ti) and ultra fine grained titanium (UFG-Ti) produced by equal channel angular process (ECAP) of Cp-Ti). Vickers and Knoop indentations of UFG-Ti at different loads was ∼2.5 times harder than those of Cp-Ti. X-ray diffraction (XRD) analysis showed peak broadening in UFG-Ti due to reduced grain size and micro-lattice strains. Scanning electron microscopy (SEM) revealed that ECAP had reduced the grain size of Cp-Ti by ∼10 times. Weibull statistics showed UFG-Ti with lower dispersion in hardness values compare to Cp-Ti indicating a more uniform microstructure.",

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author = "Sanosh, {K. P.} and A. Balakrishnan and L. Francis and Kim, {T. N.}",

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doi = "10.1016/S1005-0302(10)60145-4",

language = "English (US)",

volume = "26",

pages = "904--907",

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issn = "1005-0302",

publisher = "Chinese Society of Metals",

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}

TY - JOUR

T1 - Vickers and knoop micro-hardness behavior of coarse-and ultrafine-grained titanium

AU - Sanosh, K. P.

AU - Balakrishnan, A.

AU - Francis, L.

AU - Kim, T. N.

PY - 2010

Y1 - 2010

N2 - The present study focuses on the relationship of hardness with grain size for commercially pure titanium (Cp-Ti) and ultra fine grained titanium (UFG-Ti) produced by equal channel angular process (ECAP) of Cp-Ti). Vickers and Knoop indentations of UFG-Ti at different loads was ∼2.5 times harder than those of Cp-Ti. X-ray diffraction (XRD) analysis showed peak broadening in UFG-Ti due to reduced grain size and micro-lattice strains. Scanning electron microscopy (SEM) revealed that ECAP had reduced the grain size of Cp-Ti by ∼10 times. Weibull statistics showed UFG-Ti with lower dispersion in hardness values compare to Cp-Ti indicating a more uniform microstructure.

AB - The present study focuses on the relationship of hardness with grain size for commercially pure titanium (Cp-Ti) and ultra fine grained titanium (UFG-Ti) produced by equal channel angular process (ECAP) of Cp-Ti). Vickers and Knoop indentations of UFG-Ti at different loads was ∼2.5 times harder than those of Cp-Ti. X-ray diffraction (XRD) analysis showed peak broadening in UFG-Ti due to reduced grain size and micro-lattice strains. Scanning electron microscopy (SEM) revealed that ECAP had reduced the grain size of Cp-Ti by ∼10 times. Weibull statistics showed UFG-Ti with lower dispersion in hardness values compare to Cp-Ti indicating a more uniform microstructure.

KW - Hardness

KW - Knoop

KW - Titanium

KW - Ultrafine-grained

KW - Vickers

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U2 - 10.1016/S1005-0302(10)60145-4

DO - 10.1016/S1005-0302(10)60145-4

M3 - Article

AN - SCOPUS:78649415354

SN - 1005-0302

VL - 26

SP - 904

EP - 907

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

IS - 10

ER -

Vickers and knoop micro-hardness behavior of coarse-and ultrafine-grained titanium

Abstract

Keywords

ASJC Scopus subject areas

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