Control of Grain Growth Process by a Local Heating Method

Shibayanagi, Toshiya; Tsukamoto, Masahiro; Abe, Nobuyuki

Transactions of JWRI, 2005, 34(1), 37-42

Number of Access:591（2025-11-20 06:12 Counts）

Identifier to cite or link to this item: https://doi.org/10.18910/10789

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Title
Control of Grain Growth Process by a Local Heating Method
Creator
NRID
1000010187411 1000010187411
CreatorName
Shibayanagi, Toshiya
NRID
1000090273713 1000090273713
researchmap permalink
mtsukamoto mtsukamoto
Scopus Author ID
35370999700 35370999700
CreatorName
Tsukamoto, Masahiro
NRID
1000090127176 1000090127176
researchmap permalink
read0014397 read0014397
CreatorName
Abe, Nobuyuki
Subject
pure copper
local heating
laser beam
grain growth simulation
EBSP analysis
Abstract
The present work deals with a preferential grain growth process in a localized region utilizing a local heating method in order to fabricate some unique microstructures, different from those fabricated in the homogeneous way by microstructure evolution. A Monte Carlo simulation of grain growth under a heterogeneous temperature gradient, i.e. spot heating, was performed. A steep temperature gradient brought about preferential grain growth in the higher temperature region, showing that the local heating is effective for the control of grain structure of polycrystalline materials. Such a type of preferential grain growth became less significant under a mild temperature gradient. Local heating of pure copper foil of 0.2mm in thickness utilizing a laser beam was performed by changing the irradiation conditions. In the case of 200W of laser power and 18mm/s for sweep velocity, some grains were observed to have larger grain size than their neighbors, suggesting a possibility of preferential grain growth in localized regions.
Publisher
大阪大学接合科学研究所
オオサカ ダイガク セツゴウ カガク ケンキュウジョ
Joining and Welding Research Institute, Osaka University
Source Title
Transactions of JWRI
Volume (Issue)
34(1)
Page
37-42
Date of Issued
2005-07
Language
English
Handle URL
https://hdl.handle.net/11094/10789
DOI
https://doi.org/10.18910/10789
PISSN
03874508
NCID
AA00867058
Access Rights
open access
oaire:version
Version of Record
Category
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.34 No.1 (2005-07)