Abstract
Young's modulus (E) and tensile strength (S) of sintered steels depend mainly on porosity (P). The relations of P to E and S are described as E = (E0 - Esub)exp(- bE · P) + E sub and S = (S0 - Ssub) exp(- bs · P)+Ssub, respectively, Where E0 and S0 mean the mechanical properties at P=0, Esub, bE, S sub, and bs are experimental constants. The E sub and bE are affected by pore characteristic, such as pore shape, size, and interconnection, and S0, Ssub, and bs depend on not only the pore characteristic but also metal matrix structure. The fitting curves of shear modulus and 0.2% proof stress used by the above relation of P also correspond to the measured values of them, respectively. And then, Poisson's ratio calculated by the above relatons of Young's and shear moduli correspond to the measured value in comparison with Poisson's ratio calculated by the fitting equation, the type of E = E 0 exp(- bE · P), of each modulus. Furthermore, the relationship between ln(S - Ssub) and ln(E - Esub) of sintered steels shows the positive linear correlation.
| Original language | English |
|---|---|
| Pages (from-to) | 895-900 |
| Number of pages | 6 |
| Journal | Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A |
| Volume | 72 |
| Issue number | 6 |
| Publication status | Published - 2006 Jun |
| Externally published | Yes |
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Keywords
- Elasticity
- Material Testing
- Porosity
- Sintered Material
- Tensile Strength
- Young's Modulus
ASJC Scopus subject areas
- Mechanical Engineering
Cite this
Relations of porosity to Young's modulus and tensile strength and correlations between those mechanical properties of sintered steels. / Hirose, Norimitsu; Tanaka, Shin Ichi; Fujiki, Akira; Asami, Junichi.
In: Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 72, No. 6, 06.2006, p. 895-900.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Relations of porosity to Young's modulus and tensile strength and correlations between those mechanical properties of sintered steels
AU - Hirose, Norimitsu
AU - Tanaka, Shin Ichi
AU - Fujiki, Akira
AU - Asami, Junichi
PY - 2006/6
Y1 - 2006/6
N2 - Young's modulus (E) and tensile strength (S) of sintered steels depend mainly on porosity (P). The relations of P to E and S are described as E = (E0 - Esub)exp(- bE · P) + E sub and S = (S0 - Ssub) exp(- bs · P)+Ssub, respectively, Where E0 and S0 mean the mechanical properties at P=0, Esub, bE, S sub, and bs are experimental constants. The E sub and bE are affected by pore characteristic, such as pore shape, size, and interconnection, and S0, Ssub, and bs depend on not only the pore characteristic but also metal matrix structure. The fitting curves of shear modulus and 0.2% proof stress used by the above relation of P also correspond to the measured values of them, respectively. And then, Poisson's ratio calculated by the above relatons of Young's and shear moduli correspond to the measured value in comparison with Poisson's ratio calculated by the fitting equation, the type of E = E 0 exp(- bE · P), of each modulus. Furthermore, the relationship between ln(S - Ssub) and ln(E - Esub) of sintered steels shows the positive linear correlation.
AB - Young's modulus (E) and tensile strength (S) of sintered steels depend mainly on porosity (P). The relations of P to E and S are described as E = (E0 - Esub)exp(- bE · P) + E sub and S = (S0 - Ssub) exp(- bs · P)+Ssub, respectively, Where E0 and S0 mean the mechanical properties at P=0, Esub, bE, S sub, and bs are experimental constants. The E sub and bE are affected by pore characteristic, such as pore shape, size, and interconnection, and S0, Ssub, and bs depend on not only the pore characteristic but also metal matrix structure. The fitting curves of shear modulus and 0.2% proof stress used by the above relation of P also correspond to the measured values of them, respectively. And then, Poisson's ratio calculated by the above relatons of Young's and shear moduli correspond to the measured value in comparison with Poisson's ratio calculated by the fitting equation, the type of E = E 0 exp(- bE · P), of each modulus. Furthermore, the relationship between ln(S - Ssub) and ln(E - Esub) of sintered steels shows the positive linear correlation.
KW - Elasticity
KW - Material Testing
KW - Porosity
KW - Sintered Material
KW - Tensile Strength
KW - Young's Modulus
UR - http://www.scopus.com/inward/record.url?scp=33748335417&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33748335417&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:33748335417
VL - 72
SP - 895
EP - 900
JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
SN - 0387-5008
IS - 6
ER -