Using X-ray microdiffraction to determine grain sizes at selected positions in disks processed by high-pressure torsion

Tamás Ungár; Levente Balogh; Yuntian T. Zhu; Zenji Horita; Cheng Xu; Terence G. Langdon

doi:10.1016/j.msea.2006.08.059

Using X-ray microdiffraction to determine grain sizes at selected positions in disks processed by high-pressure torsion

Tamás Ungár, Levente Balogh, Yuntian T. Zhu, Zenji Horita, Cheng Xu, Terence G. Langdon

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

59 Citations (Scopus)

Abstract

Disks of pure Cu, Cu-10% Zn and Cu-30% Zn were processed by high-pressure torsion (HPT) and then examined at selected positions using microhardness testing and X-ray microdiffraction line broadening. The results show excellent agreement between the microhardness measurements and X-ray microdiffraction. The grain sizes and the microhardness values are essentially constant across the diameters of the disks of pure Cu and the Cu-30% Zn alloy but for the Cu-10% Zn alloy the measured grain size is largest and the hardness is lowest in the center of the disk. The results demonstrate the potential for achieving a reasonably homogeneous microstructure in samples processed by HPT.

Original language	English
Pages (from-to)	153-156
Number of pages	4
Journal	Materials Science and Engineering A
Volume	444
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2006.08.059
Publication status	Published - Jan 25 2007

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2006.08.059

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title = "Using X-ray microdiffraction to determine grain sizes at selected positions in disks processed by high-pressure torsion",

abstract = "Disks of pure Cu, Cu-10% Zn and Cu-30% Zn were processed by high-pressure torsion (HPT) and then examined at selected positions using microhardness testing and X-ray microdiffraction line broadening. The results show excellent agreement between the microhardness measurements and X-ray microdiffraction. The grain sizes and the microhardness values are essentially constant across the diameters of the disks of pure Cu and the Cu-30% Zn alloy but for the Cu-10% Zn alloy the measured grain size is largest and the hardness is lowest in the center of the disk. The results demonstrate the potential for achieving a reasonably homogeneous microstructure in samples processed by HPT.",

author = "Tam{\'a}s Ung{\'a}r and Levente Balogh and Zhu, {Yuntian T.} and Zenji Horita and Cheng Xu and Langdon, {Terence G.}",

note = "Funding Information: This work was supported in part by the Hungarian National Science Foundation under Grants no. OTKA T46990 and OTKA T43247 (TU and LB), in part by the IPP program of the U.S. Department of Energy (YTZ), in part by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan (ZH) and in part by the National Science Foundation of the United States under Grant no. DMR-0243331 (TGL).",

year = "2007",

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doi = "10.1016/j.msea.2006.08.059",

language = "English",

volume = "444",

pages = "153--156",

journal = "Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing",

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T1 - Using X-ray microdiffraction to determine grain sizes at selected positions in disks processed by high-pressure torsion

AU - Ungár, Tamás

AU - Balogh, Levente

AU - Zhu, Yuntian T.

AU - Horita, Zenji

AU - Xu, Cheng

AU - Langdon, Terence G.

N1 - Funding Information: This work was supported in part by the Hungarian National Science Foundation under Grants no. OTKA T46990 and OTKA T43247 (TU and LB), in part by the IPP program of the U.S. Department of Energy (YTZ), in part by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan (ZH) and in part by the National Science Foundation of the United States under Grant no. DMR-0243331 (TGL).

PY - 2007/1/25

Y1 - 2007/1/25

N2 - Disks of pure Cu, Cu-10% Zn and Cu-30% Zn were processed by high-pressure torsion (HPT) and then examined at selected positions using microhardness testing and X-ray microdiffraction line broadening. The results show excellent agreement between the microhardness measurements and X-ray microdiffraction. The grain sizes and the microhardness values are essentially constant across the diameters of the disks of pure Cu and the Cu-30% Zn alloy but for the Cu-10% Zn alloy the measured grain size is largest and the hardness is lowest in the center of the disk. The results demonstrate the potential for achieving a reasonably homogeneous microstructure in samples processed by HPT.

AB - Disks of pure Cu, Cu-10% Zn and Cu-30% Zn were processed by high-pressure torsion (HPT) and then examined at selected positions using microhardness testing and X-ray microdiffraction line broadening. The results show excellent agreement between the microhardness measurements and X-ray microdiffraction. The grain sizes and the microhardness values are essentially constant across the diameters of the disks of pure Cu and the Cu-30% Zn alloy but for the Cu-10% Zn alloy the measured grain size is largest and the hardness is lowest in the center of the disk. The results demonstrate the potential for achieving a reasonably homogeneous microstructure in samples processed by HPT.

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JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

IS - 1-2

ER -

Using X-ray microdiffraction to determine grain sizes at selected positions in disks processed by high-pressure torsion

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