抄録
The differences in Young's moduli (E) and Poisson's ratios (v), calculated by the stress-strain diagrams from tensile testing (TT) and the sound velocities from an acoustic pulse method (APM), of sintered steels were compared. The values of E TT and V TT were smaller than those of E APM and V APM, respectively, because not only the elastic strain, but also the plastic strain are included in the stress-strain diagram of the sintered steels. Furthermore, by using the longitudinal and transverse elastic strains calculated from the values of E APM and V APM, the longitudinal and transverse plastic strains were separated from the stress-longitudinal and transverse strain diagrams. Consequently, the elastic limit or 0.2% yield strength was simply defined from the stress-longitudinal plastic strain diagram, in the case of the sintered steels which does not show a linearity of stress-strain diagram at the lower stresses. The differences in the elastic and plastic strains versus stress of each sample were explained on the basis of the pore characteristics, such as size, shape, and interconnection, and microstructures.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 31-35 |
| ページ数 | 5 |
| ジャーナル | Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy |
| 巻 | 53 |
| 発行部数 | 1 |
| DOI | |
| 出版物ステータス | Published - 2006 1 |
| 外部発表 | Yes |
Fingerprint
ASJC Scopus subject areas
- Mechanical Engineering
- Metals and Alloys
これを引用
Preparation and evaluation of stress-elastic and plastic strain diagrams of sintered steels. / Hirose, Norimitsu; Tanaka, Shin Ichi; Fujiki, Akira; Asami, Junichi.
：: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, 巻 53, 番号 1, 01.2006, p. 31-35.研究成果: Article
}
TY - JOUR
T1 - Preparation and evaluation of stress-elastic and plastic strain diagrams of sintered steels
AU - Hirose, Norimitsu
AU - Tanaka, Shin Ichi
AU - Fujiki, Akira
AU - Asami, Junichi
PY - 2006/1
Y1 - 2006/1
N2 - The differences in Young's moduli (E) and Poisson's ratios (v), calculated by the stress-strain diagrams from tensile testing (TT) and the sound velocities from an acoustic pulse method (APM), of sintered steels were compared. The values of E TT and V TT were smaller than those of E APM and V APM, respectively, because not only the elastic strain, but also the plastic strain are included in the stress-strain diagram of the sintered steels. Furthermore, by using the longitudinal and transverse elastic strains calculated from the values of E APM and V APM, the longitudinal and transverse plastic strains were separated from the stress-longitudinal and transverse strain diagrams. Consequently, the elastic limit or 0.2% yield strength was simply defined from the stress-longitudinal plastic strain diagram, in the case of the sintered steels which does not show a linearity of stress-strain diagram at the lower stresses. The differences in the elastic and plastic strains versus stress of each sample were explained on the basis of the pore characteristics, such as size, shape, and interconnection, and microstructures.
AB - The differences in Young's moduli (E) and Poisson's ratios (v), calculated by the stress-strain diagrams from tensile testing (TT) and the sound velocities from an acoustic pulse method (APM), of sintered steels were compared. The values of E TT and V TT were smaller than those of E APM and V APM, respectively, because not only the elastic strain, but also the plastic strain are included in the stress-strain diagram of the sintered steels. Furthermore, by using the longitudinal and transverse elastic strains calculated from the values of E APM and V APM, the longitudinal and transverse plastic strains were separated from the stress-longitudinal and transverse strain diagrams. Consequently, the elastic limit or 0.2% yield strength was simply defined from the stress-longitudinal plastic strain diagram, in the case of the sintered steels which does not show a linearity of stress-strain diagram at the lower stresses. The differences in the elastic and plastic strains versus stress of each sample were explained on the basis of the pore characteristics, such as size, shape, and interconnection, and microstructures.
KW - Plastic strain
KW - Poisson's ratio
KW - Stress-strain diagram
KW - Young's modulus
UR - http://www.scopus.com/inward/record.url?scp=33645963175&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33645963175&partnerID=8YFLogxK
U2 - 10.2497/jjspm.53.31
DO - 10.2497/jjspm.53.31
M3 - Article
AN - SCOPUS:33645963175
VL - 53
SP - 31
EP - 35
JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
JF - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
SN - 0532-8799
IS - 1
ER -