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

K. P. Sanosh, A. Balakrishnan, Lijo Francis, T. N. Kim

Research output: Contribution to journalArticle

17 Citations (Scopus)

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 languageEnglish
Pages (from-to)904-907
Number of pages4
JournalJournal of Materials Science and Technology
Volume26
Issue number10
DOIs
Publication statusPublished - 2010
Externally publishedYes

Fingerprint

Titanium
Microhardness
Hardness
Ultrafine
Indentation
X ray diffraction analysis
Statistics
Microstructure
Scanning electron microscopy

Keywords

  • Hardness
  • Knoop
  • Titanium
  • Ultrafine-grained
  • Vickers

ASJC Scopus subject areas

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

Cite this

Vickers and knoop micro-hardness behavior of coarse-and ultrafine-grained titanium. / Sanosh, K. P.; Balakrishnan, A.; Francis, Lijo; Kim, T. N.

In: Journal of Materials Science and Technology, Vol. 26, No. 10, 2010, p. 904-907.

Research output: Contribution to journalArticle

@article{ae3225b7bcd64819820de46a6e1dabf5,
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.",
keywords = "Hardness, Knoop, Titanium, Ultrafine-grained, Vickers",
author = "Sanosh, {K. P.} and A. Balakrishnan and Lijo Francis and Kim, {T. N.}",
year = "2010",
doi = "10.1016/S1005-0302(10)60145-4",
language = "English",
volume = "26",
pages = "904--907",
journal = "Journal of Materials Science and Technology",
issn = "1005-0302",
publisher = "Chinese Society of Metals",
number = "10",

}

TY - JOUR

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

AU - Sanosh, K. P.

AU - Balakrishnan, A.

AU - Francis, Lijo

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

UR - http://www.scopus.com/inward/record.url?scp=78649415354&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78649415354&partnerID=8YFLogxK

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

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

M3 - Article

AN - SCOPUS:78649415354

VL - 26

SP - 904

EP - 907

JO - Journal of Materials Science and Technology

JF - Journal of Materials Science and Technology

SN - 1005-0302

IS - 10

ER -