Grain refinement and hardness increase of titanium via trace element addition

J. M. Oh; J. W. Lim; B. G. Lee; C. Y. Suh; S. W. Cho; S. W. Lee; G. S. Choi

doi:10.2320/matertrans.M2010175

Grain refinement and hardness increase of titanium via trace element addition

J. M. Oh
, J. W. Lim^*
, B. G. Lee
, C. Y. Suh
, S. W. Cho
, S. W. Lee
, G. S. Choi

^*Corresponding author for this work

Korea Institute of Geoscience and Mineral Resources
Chungnam National University

Research output: Contribution to journal › Journal article › peer-review

39 Scopus citations

Abstract

The effect of trace Al, V, Sn and Si addition on the grain refinement, hardness, and lattice strain was discussed. From the results of variation in the average grain size, it was found that the growth restriction factor of individual additions is Si > Al > Sn > V in order of their magnitude. The c/a ratio of other Ti alloys except for the Ti-Si alloy were the same value of 1.587 as pure Ti, whereas that of the Ti-Si alloy was 1.581, the lattice strain of which affected the hardness increase. It was then suggested that Si addition to pure Ti plays an important role in the hardness increase, which can be explained by the lattice strain caused by c/a ratio reduction, the decrease in the grain size of Ti-Si alloy, and the formation of Ti suicide at higher Si content.

Original language	English
Pages (from-to)	2009-2012
Number of pages	4
Journal	Materials Transactions
Volume	51
Issue number	11
DOIs	https://doi.org/10.2320/matertrans.M2010175
State	Published - 2010.11

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being

Keywords

Grain refinement
Oxygen
Titanium
Vickers hardness
X-ray diffraction

Access to Document

10.2320/matertrans.M2010175

Cite this

@article{a2355ceef8a442ed81695e2243acad0e,

title = "Grain refinement and hardness increase of titanium via trace element addition",

abstract = "The effect of trace Al, V, Sn and Si addition on the grain refinement, hardness, and lattice strain was discussed. From the results of variation in the average grain size, it was found that the growth restriction factor of individual additions is Si > Al > Sn > V in order of their magnitude. The c/a ratio of other Ti alloys except for the Ti-Si alloy were the same value of 1.587 as pure Ti, whereas that of the Ti-Si alloy was 1.581, the lattice strain of which affected the hardness increase. It was then suggested that Si addition to pure Ti plays an important role in the hardness increase, which can be explained by the lattice strain caused by c/a ratio reduction, the decrease in the grain size of Ti-Si alloy, and the formation of Ti suicide at higher Si content.",

keywords = "Grain refinement, Oxygen, Titanium, Vickers hardness, X-ray diffraction",

author = "Oh, \{J. M.\} and Lim, \{J. W.\} and Lee, \{B. G.\} and Suh, \{C. Y.\} and Cho, \{S. W.\} and Lee, \{S. W.\} and Choi, \{G. S.\}",

year = "2010",

month = nov,

doi = "10.2320/matertrans.M2010175",

language = "English",

volume = "51",

pages = "2009--2012",

journal = "Materials Transactions",

issn = "1345-9678",

number = "11",

}

TY - JOUR

T1 - Grain refinement and hardness increase of titanium via trace element addition

AU - Oh, J. M.

AU - Lim, J. W.

AU - Lee, B. G.

AU - Suh, C. Y.

AU - Cho, S. W.

AU - Lee, S. W.

AU - Choi, G. S.

PY - 2010/11

Y1 - 2010/11

N2 - The effect of trace Al, V, Sn and Si addition on the grain refinement, hardness, and lattice strain was discussed. From the results of variation in the average grain size, it was found that the growth restriction factor of individual additions is Si > Al > Sn > V in order of their magnitude. The c/a ratio of other Ti alloys except for the Ti-Si alloy were the same value of 1.587 as pure Ti, whereas that of the Ti-Si alloy was 1.581, the lattice strain of which affected the hardness increase. It was then suggested that Si addition to pure Ti plays an important role in the hardness increase, which can be explained by the lattice strain caused by c/a ratio reduction, the decrease in the grain size of Ti-Si alloy, and the formation of Ti suicide at higher Si content.

AB - The effect of trace Al, V, Sn and Si addition on the grain refinement, hardness, and lattice strain was discussed. From the results of variation in the average grain size, it was found that the growth restriction factor of individual additions is Si > Al > Sn > V in order of their magnitude. The c/a ratio of other Ti alloys except for the Ti-Si alloy were the same value of 1.587 as pure Ti, whereas that of the Ti-Si alloy was 1.581, the lattice strain of which affected the hardness increase. It was then suggested that Si addition to pure Ti plays an important role in the hardness increase, which can be explained by the lattice strain caused by c/a ratio reduction, the decrease in the grain size of Ti-Si alloy, and the formation of Ti suicide at higher Si content.

KW - Grain refinement

KW - Oxygen

KW - Titanium

KW - Vickers hardness

KW - X-ray diffraction

UR - https://www.scopus.com/pages/publications/78650747583

U2 - 10.2320/matertrans.M2010175

DO - 10.2320/matertrans.M2010175

M3 - Journal article

AN - SCOPUS:78650747583

SN - 1345-9678

VL - 51

SP - 2009

EP - 2012

JO - Materials Transactions

JF - Materials Transactions

IS - 11

ER -

Grain refinement and hardness increase of titanium via trace element addition

Abstract

UN SDGs

Keywords

Access to Document

Other files and links

Fingerprint

Cite this