A Survey of Nanoindentation Studies on HPT-Processed Materials

In Chul Choi, Jae il Jang

Research output: Contribution to journalReview article

Abstract

The development of high-pressure torsion (HPT) processing has increased the possibility for achieving significant grain refinement, which leads to a material's ability to produce ultrafine-grained or nanocrystalline materials having enhanced strength without a large expense of ductility at room temperature. Since the applied strain is locally changed across the sample disc during HPT, the microstructure and thus mechanical properties vary within the disc. Recently, as a promising tool for characterizing the mechanical behavior of the local regions within the disc, the nanoindentation technique becomes widely used mainly due to its simple and easy testing procedures and the requirement of only small volume of material. The nanoindentation technique provides important clues to better understand the relation between microstructural refinement and mechanical property enhancement of the HPT-processed materials. Here, the nanoindentation studies performed on various HPT-processed materials are reviewed with focus on a variety of micromechanical properties that can be estimated by nanoindentation and the interesting results are reported in the available literature.

Original languageEnglish
Article number1900648
JournalAdvanced Engineering Materials
Volume22
Issue number1
DOIs
StatePublished - 2020 Jan 1

Fingerprint

Nanoindentation
nanoindentation
Torsional stress
torsion
mechanical properties
Nanocrystalline materials
Mechanical properties
Grain refinement
ductility
Ductility
nanocrystals
requirements
microstructure
Microstructure
augmentation
Testing
room temperature
Processing
Temperature

Keywords

  • high-pressure torsion
  • micromechanical properties
  • microstructural refinement
  • nanoindentation

Cite this

@article{4a022de837544c6fad2064d4da03d743,
title = "A Survey of Nanoindentation Studies on HPT-Processed Materials",
abstract = "The development of high-pressure torsion (HPT) processing has increased the possibility for achieving significant grain refinement, which leads to a material's ability to produce ultrafine-grained or nanocrystalline materials having enhanced strength without a large expense of ductility at room temperature. Since the applied strain is locally changed across the sample disc during HPT, the microstructure and thus mechanical properties vary within the disc. Recently, as a promising tool for characterizing the mechanical behavior of the local regions within the disc, the nanoindentation technique becomes widely used mainly due to its simple and easy testing procedures and the requirement of only small volume of material. The nanoindentation technique provides important clues to better understand the relation between microstructural refinement and mechanical property enhancement of the HPT-processed materials. Here, the nanoindentation studies performed on various HPT-processed materials are reviewed with focus on a variety of micromechanical properties that can be estimated by nanoindentation and the interesting results are reported in the available literature.",
keywords = "high-pressure torsion, micromechanical properties, microstructural refinement, nanoindentation",
author = "Choi, {In Chul} and Jang, {Jae il}",
year = "2020",
month = "1",
day = "1",
doi = "10.1002/adem.201900648",
language = "English",
volume = "22",
journal = "Advanced Engineering Materials",
issn = "1438-1656",
number = "1",

}

A Survey of Nanoindentation Studies on HPT-Processed Materials. / Choi, In Chul; Jang, Jae il.

In: Advanced Engineering Materials, Vol. 22, No. 1, 1900648, 01.01.2020.

Research output: Contribution to journalReview article

TY - JOUR

T1 - A Survey of Nanoindentation Studies on HPT-Processed Materials

AU - Choi, In Chul

AU - Jang, Jae il

PY - 2020/1/1

Y1 - 2020/1/1

N2 - The development of high-pressure torsion (HPT) processing has increased the possibility for achieving significant grain refinement, which leads to a material's ability to produce ultrafine-grained or nanocrystalline materials having enhanced strength without a large expense of ductility at room temperature. Since the applied strain is locally changed across the sample disc during HPT, the microstructure and thus mechanical properties vary within the disc. Recently, as a promising tool for characterizing the mechanical behavior of the local regions within the disc, the nanoindentation technique becomes widely used mainly due to its simple and easy testing procedures and the requirement of only small volume of material. The nanoindentation technique provides important clues to better understand the relation between microstructural refinement and mechanical property enhancement of the HPT-processed materials. Here, the nanoindentation studies performed on various HPT-processed materials are reviewed with focus on a variety of micromechanical properties that can be estimated by nanoindentation and the interesting results are reported in the available literature.

AB - The development of high-pressure torsion (HPT) processing has increased the possibility for achieving significant grain refinement, which leads to a material's ability to produce ultrafine-grained or nanocrystalline materials having enhanced strength without a large expense of ductility at room temperature. Since the applied strain is locally changed across the sample disc during HPT, the microstructure and thus mechanical properties vary within the disc. Recently, as a promising tool for characterizing the mechanical behavior of the local regions within the disc, the nanoindentation technique becomes widely used mainly due to its simple and easy testing procedures and the requirement of only small volume of material. The nanoindentation technique provides important clues to better understand the relation between microstructural refinement and mechanical property enhancement of the HPT-processed materials. Here, the nanoindentation studies performed on various HPT-processed materials are reviewed with focus on a variety of micromechanical properties that can be estimated by nanoindentation and the interesting results are reported in the available literature.

KW - high-pressure torsion

KW - micromechanical properties

KW - microstructural refinement

KW - nanoindentation

UR - http://www.scopus.com/inward/record.url?scp=85070885122&partnerID=8YFLogxK

U2 - 10.1002/adem.201900648

DO - 10.1002/adem.201900648

M3 - Review article

AN - SCOPUS:85070885122

VL - 22

JO - Advanced Engineering Materials

JF - Advanced Engineering Materials

SN - 1438-1656

IS - 1

M1 - 1900648

ER -