### 抜粋

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 = (E_{0} - E_{sub})exp(- b_{E} · P) + E _{sub} and S = (S_{0} - S_{sub}) exp(- b_{s} · P)+S_{sub}, respectively, Where E_{0} and S_{0} mean the mechanical properties at P=0, E_{sub}, b_{E}, S _{sub}, and b_{s} are experimental constants. The E _{sub} and b_{E} are affected by pore characteristic, such as pore shape, size, and interconnection, and S_{0}, S_{sub}, and b_{s} 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(- b_{E} · P), of each modulus. Furthermore, the relationship between ln(S - S_{sub}) and ln(E - E_{sub}) of sintered steels shows the positive linear correlation.

元の言語 | English |
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ページ（範囲） | 895-900 |

ページ数 | 6 |

ジャーナル | Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A |

巻 | 72 |

発行部数 | 6 |

DOI | |

出版物ステータス | Published - 2006 6 |

外部発表 | Yes |

### ASJC Scopus subject areas

- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering

## フィンガープリント Relations of porosity to Young's modulus and tensile strength and correlations between those mechanical properties of sintered steels' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

## これを引用

*Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A*,

*72*(6), 895-900. https://doi.org/10.1299/kikaia.72.895