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Analysis of Nano-hardness Distribution Near the Ferrite-martensite Interface in a Dual Phase Steel with Factorization of Its Scattering Behavior
Description/Abstract:
We investigated the local preliminary hardening of ferrite near the ferrite–martensite interfaces in a dual-phase (DP) steel. Geometrical...
Keyword:
dual phase steel
,
grains and interfaces
,
nanoindentation
,
scattering
, and
serial sectioning
Resource Type:
Article
Author:
Reon Ando
,
Takashi Matsuno
,
Tomoko Matsuda
,
Norio Yamashita
,
Hideo Yokota
,
Kenta Goto
, and
Ikumu Watanabe
Date Uploaded:
28/02/2023
Data-driven estimation of plastic properties in work-hardening model combining power-law and linear hardening using instrumented indentation test
Description/Abstract:
In this study, a method for determining the additional material constant in a modified work-hardening model combining power-law and linea...
Keyword:
Elastic-plastic material
,
finite element method
,
instrumented indentation test
,
material database
, and
response surface
Resource Type:
Article
Author:
Ta-Te Chen
and
Ikumu Watanabe
Date Uploaded:
28/02/2023
Data-driven estimation of plastic properties of alloys using neighboring indentation test
Description/Abstract:
A data-driven estimation method for the plastic properties of alloys was proposed using indentations at neighboring positions. An instrum...
Keyword:
Elastic-plastic material
,
finite element method
,
instrumented indentation test
,
material database
,
mechanical testing
, and
response surface
Resource Type:
Article
Author:
Ta-Te Chen
,
Ikumu Watanabe
,
Dayuan Liu
, and
Kenta Goto
Date Uploaded:
28/02/2023
Reliable Ohmic Contact Properties for Ni/Hydrogen-Terminated Diamond at Annealing Temperature up to 900 °C
Description/Abstract:
Ohmic contact with high thermal stability is essential to promote hydrogen-terminated diamond (H-diamond) based electronic devices for hi...
Keyword:
Ni
,
high-temperature
,
hydrogen-terminated diamond (H-diamond)
,
ohmic contact
, and
specific contact resistance
Resource Type:
Article
Author:
Xiaolu Yuan
,
Jiangwei Liu
,
Jinlong Liu
,
Junjun Wei
,
Bo Da
,
Chengming Li
, and
Yasuo Koide
Date Uploaded:
28/02/2023
Reprogrammable flexible mechanical metamaterials
Description/Abstract:
Mechanical metamaterials are artificial structures with structure-dependent properties. They often harness zero-energy deformation modes....
Keyword:
Buckling
,
Imperfection
,
Mechanical metamaterials
,
Negative Poisson’s ratios
,
Shape-memory polymers
, and
Soft robotics
Resource Type:
Article
Author:
Xiaoyang Zheng
,
Koichiro Uto
,
Wei-Hsun Hu
,
Ta-Te Chen
,
Masanobu Naito
, and
Ikumu Watanabe
Date Uploaded:
28/02/2023
Characterization of the Strain-Rate-Dependent Plasticity of Alloys Using Instrumented Indentation Tests
Description/Abstract:
Instrumented indentation tests are an efficient approach to characterize stress--strain curves instead of tensile or compression tests an...
Keyword:
finite elements
,
instrumented indentation test
,
mechanical testing
, and
strain-rate-dependent plasticity
Resource Type:
Article
Author:
Ta-Te Chen
,
Ikumu Watanabe
, and
Tatsuya Funazuka
Date Uploaded:
28/02/2023
A mathematically defined 3D auxetic metamaterial with tunable mechanical and conduction properties
Description/Abstract:
An auxetic metamaterial is a type of mechanical metamaterial that has negative Poisson's ratio. Most auxetic metamaterials are truss-base...
Keyword:
3D printing
,
Electroless plating
,
Metamaterial
,
Minimal surface
, and
Negative Poisson’s ratio
Resource Type:
Article
Author:
Xiaoyang Zheng
,
Xiaofeng Guo
, and
Ikumu Watanabe
Date Uploaded:
28/02/2023
Thermal stability investigation for Ohmic contact properties of Pt, Au, and Pd electrodes on the same hydrogen-terminated diamond
Description/Abstract:
Here, thermal stabilities for Ohmic contact properties of Pt, Au, and Pd on the same hydrogen-terminated diamond (H-diamond) epitaxial la...
Keyword:
thermal stabilities for Ohmic contact properties
Resource Type:
Article
Author:
Xiaolu Yuan
,
Jiangwei Liu
,
Siwu Shao
,
Jinlong Liu
,
Junjun Wei
,
Bo Da
,
Chengming Li
, and
Yasuo Koide
Date Uploaded:
28/02/2023
Tensile deformation behavior of TRIP-aided bainitic ferrite steel in the post-necking strain region
Description/Abstract:
This study validated the methods for the evaluation of stress triaxiality using finite element (FE) simulations. The FE simulations traci...
Keyword:
Advanced high-strength steel
,
finite element simulation
,
large strain
,
small round-bar tensile test
,
stress-triaxiality
, and
synchrotron X-ray diffraction
Resource Type:
Article
Author:
Takashi Matsuno
,
Tomohiko Hojo
,
Ikumu Watanabe
,
Ayumi Shiro
,
Takahisa Shobu
, and
Kentaro Kajiwara
Date Uploaded:
28/02/2023
Origin of phase stability in Fe with long-period stacking order as an intermediate phase in cyclic γ−ε martensitic transformation
Description/Abstract:
A class of Fe-Mn-Si based alloys was found to exhibit a reversible martensitic transformation between the gamma (fcc) and epsilon (hcp) p...
Resource Type:
Article
Author:
Takao Tsumuraya
,
Ikumu Watanabe
, and
Takahiro Sawaguchi
Date Uploaded:
28/02/2023
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