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Masahiko Demura
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Comprehensive elemental screening of solid-solution copper alloys
Description/Abstract:
A comprehensive elemental screening framework is proposed to predict the solid-solution strengthening and electrical resistivity of copp...
Keyword:
Alloy design
,
Copper alloys
,
Density functional theory (DFT)
,
Electrical resistivity / conductivity
, and
Mechanical properties
Resource Type:
Article
Author:
Kenji Yamaguchi
,
Takuya Ishigaki
,
Yuki Inoue
,
Shuhei Arisawa
,
Hirotaka Matsunoshita
,
Yuki Ito
,
Hiroyuki Mori
,
Ken’ichiro Suehiro
,
Kazunari Maki
,
Kenji Nagata
, and
Masahiko Demura
Journal:
Science and Technology of Advanced Materials: Methods
Date Uploaded:
02/11/2023
Date Modified:
02/11/2023
Descriptor extraction on inherent creep strength of carbon steel by exhaustive search
Description/Abstract:
炭素鋼の基底クリープ強度領域におけるクリープ寿命モデルを提案し、ベイズ統計によるモデル選択手法を適用することで、Moが単独で効果を有することを見出した。
Keyword:
Bayesian inference
,
Carbon steel
,
Creep rupture
,
Exhaustive search
,
Inherent creep strength
,
Larson–miller parameter
, and
Model selection
Resource Type:
Article
Author:
Junya Sakurai
,
Masahiko Demura
,
Yoh-ichi Mototake
,
Masato Okada
,
Masayoshi Yamazaki
, and
Junya Inoue
Journal:
Science and Technology of Advanced Materials: Methods
Date Uploaded:
24/10/2023
Artificial intelligence inspired design of non-isothermal aging for γ–γ′ two-phase, Ni–Al alloys
Description/Abstract:
最先端のAIアルゴリズムを活用して,ニッケル基合金において,高温強度をより高くするための時効熱処理を考案した.これまでは等温時効が一般であったところを昇温や降温を含めた複雑な時効熱処理パターンの膨大組み合わせ(約35億通り)から,等温時効を凌駕するパターンを見出すことに挑戦...
Keyword:
Artificial Intelligence
,
Gamma and Gamma' two-phase microstructure
,
Heat resistant alloys
,
High-temperature strength
,
Inverse design
,
Ni-Al alloy
, and
non-isothermal aging
Resource Type:
Article
Author:
Vickey Nandal
,
Sae Dieb
,
Dmitry S. Bulgarevich
,
Toshio Osada
,
Toshiyuki Koyama
,
Satoshi Minamoto
, and
Masahiko Demura
Journal:
Scientific Reports
Date Uploaded:
09/08/2023
Prediction of continuous cooling transformation diagram for weld heat affected zone by machine learning
Description/Abstract:
The continuous cooling transformation (CCT) diagram of steels is very important in considering the phase transformation depending on the ...
Keyword:
CCT
Resource Type:
Article
Author:
Satoshi Minamoto
,
Susumu Tsukamoto
,
Tadashi Kasuya
,
Makoto Watanabe
, and
Masahiko Demura
Date Uploaded:
09/02/2023
Date Modified:
20/03/2024
Virtual heat treatment for γ-γ′ two-phase Ni-Al alloy on the materials Integration system, MInt
Description/Abstract:
Aiming to designing the aging heat treatment conditions to maximize the 0.2 % proof stress of γ-γ′ two-phase Ni-based superalloys, we dev...
Keyword:
Image analysis
,
Ni-Al alloy
,
Phase field simulation
, and
γ-γ′two-phase
Resource Type:
Article
Author:
Toshio Osada
,
Toshiyuki Koyama
,
Dmitry S. Bulgarevich
,
Satoshi Minamoto
,
Makoto Osawa
,
Makoto Watanabe
,
Kyoko Kawagishi
, and
Masahiko Demura
Date Uploaded:
01/02/2023
NIMSʼs Materials Data Platform DICE and its future direction
Description/Abstract:
To promote data-driven research in the materials science field, the National Institute for Materials Science has been developing a materi...
Keyword:
DICE
,
data platform
,
metadata
,
data management
, and
materials informatics
Resource Type:
Presentation
Author:
MATSUDA, Asahiko
,
KADOHIRA, Takuya
, and
DEMURA, Masahiko
Date Uploaded:
23/03/2022
Date Modified:
24/03/2022
Data-based selection of creep constitutive models for high-Cr heat-resistant steel
Description/Abstract:
There are two types of creep constitutive equation, one with a steady-state term (steady-state type) and the other with no steady-state t...
Keyword:
Creep constitutive equation
,
grade 91 steel
,
bayesian free energy
,
model selection method
,
theta method
, and
steady-state creep
Resource Type:
Article
Author:
Izuno, Hitoshi
,
Demura, Masahiko
,
Tabuchi, Masaaki
,
Mototake, Yoh-ichi
, and
Okada, Masato
Journal:
Science and Technology of Advanced Materials
Date Uploaded:
15/07/2021
Date Modified:
01/11/2022
A universal Bayesian inference framework for complicated creep constitutive equations
Description/Abstract:
Evaluating the creep deformation process of heat-resistant steels is important for improving the energy efficiency of power plants by inc...
Keyword:
Materials science
,
Metals and alloys
, and
Structural materials
Resource Type:
Article
Author:
Mototake, Yoh-ichi
,
Izuno, Hitoshi
,
Nagata, Kenji
,
Demura, Masahiko
, and
Okada, Masato
Journal:
Scientific Reports
Date Uploaded:
15/07/2021
Date Modified:
01/11/2022
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The history of DICE and NIMS Digital Library
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8
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Creative Commons BY Attribution 4.0 International
7
CC-BY-NC-4.0
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Masahiko Demura
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Demura, Masahiko
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Science and Technology of Advanced Materials: Methods
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