### Abstract

The influence of porosity (P) on Young's modulus (E) and Poisson's ratio (u) of sintered steels produced from four types of steel powders were investigated. The values of E and v depends mainly on the value of P, and those were a little affected by alloying elements. The relationship between compacting pressure (CP) and P and the relationships between E, v, and P were described as following equations: P = P_{1} + P_{2} exp(- CP / P _{3}), E = E_{0} (1 - k_{E}P)^{2}, and v = (v_{0} - v_{sub})(l - k_{v}P)^{2} + v _{sub}, where subscript 0 means P = 0, and P_{1-3}, k _{E}, k_{v} and v_{sub} were empirical constants. It was clarified that if powder and sintering temperature is defined, the elastic moduli of sintered steel can be calculated as a function of compacting pressure.

Original language | English |
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Title of host publication | Materials Science Forum |

Pages | 749-752 |

Number of pages | 4 |

Volume | 534-536 |

Edition | PART 1 |

Publication status | Published - 2007 |

Externally published | Yes |

Event | 2006 Powder Metallurgy World Congress and Exhibition, PM 2006 - Busan Duration: 2006 Sep 24 → 2006 Sep 28 |

### Publication series

Name | Materials Science Forum |
---|---|

Number | PART 1 |

Volume | 534-536 |

ISSN (Print) | 02555476 |

### Other

Other | 2006 Powder Metallurgy World Congress and Exhibition, PM 2006 |
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City | Busan |

Period | 06/9/24 → 06/9/28 |

### Fingerprint

### Keywords

- Diffusion bonded powder
- P/M machine part
- Poisson's ratio
- Prealloyed powder
- Young's modulus

### ASJC Scopus subject areas

- Materials Science(all)

### Cite this

*Materials Science Forum*(PART 1 ed., Vol. 534-536, pp. 749-752). (Materials Science Forum; Vol. 534-536, No. PART 1).

**Study of elastic moduli of sintered low alloy steels by acoustic pulse method.** / Hirose, Norimitsu; Oouchi, Kazuya; Fujiki, Akira; Asami, Junichi.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*Materials Science Forum.*PART 1 edn, vol. 534-536, Materials Science Forum, no. PART 1, vol. 534-536, pp. 749-752, 2006 Powder Metallurgy World Congress and Exhibition, PM 2006, Busan, 06/9/24.

}

TY - GEN

T1 - Study of elastic moduli of sintered low alloy steels by acoustic pulse method

AU - Hirose, Norimitsu

AU - Oouchi, Kazuya

AU - Fujiki, Akira

AU - Asami, Junichi

PY - 2007

Y1 - 2007

N2 - The influence of porosity (P) on Young's modulus (E) and Poisson's ratio (u) of sintered steels produced from four types of steel powders were investigated. The values of E and v depends mainly on the value of P, and those were a little affected by alloying elements. The relationship between compacting pressure (CP) and P and the relationships between E, v, and P were described as following equations: P = P1 + P2 exp(- CP / P 3), E = E0 (1 - kEP)2, and v = (v0 - vsub)(l - kvP)2 + v sub, where subscript 0 means P = 0, and P1-3, k E, kv and vsub were empirical constants. It was clarified that if powder and sintering temperature is defined, the elastic moduli of sintered steel can be calculated as a function of compacting pressure.

AB - The influence of porosity (P) on Young's modulus (E) and Poisson's ratio (u) of sintered steels produced from four types of steel powders were investigated. The values of E and v depends mainly on the value of P, and those were a little affected by alloying elements. The relationship between compacting pressure (CP) and P and the relationships between E, v, and P were described as following equations: P = P1 + P2 exp(- CP / P 3), E = E0 (1 - kEP)2, and v = (v0 - vsub)(l - kvP)2 + v sub, where subscript 0 means P = 0, and P1-3, k E, kv and vsub were empirical constants. It was clarified that if powder and sintering temperature is defined, the elastic moduli of sintered steel can be calculated as a function of compacting pressure.

KW - Diffusion bonded powder

KW - P/M machine part

KW - Poisson's ratio

KW - Prealloyed powder

KW - Young's modulus

UR - http://www.scopus.com/inward/record.url?scp=38349124815&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=38349124815&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:38349124815

SN - 0878494197

SN - 9780878494194

VL - 534-536

T3 - Materials Science Forum

SP - 749

EP - 752

BT - Materials Science Forum

ER -