Poisson's ratio of sintered materials for structural machine parts

Norimitsu Hirose, Junichi Asami, Akira Fujiki, Kazuya Oouchi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The relationships between Young's modulus, shear modulus and Poisson's ratio of sintered materials and porosity were investigated for use as practical P/M machine parts. Three types of steel powders were prepared and then compacted, sintered, and heat-treated under various conditions. Porosity had the greatest influence on Young's modulus, shear modulus, and Poisson's ratio. Especially, Poisson's ratio was affected by the pore shape, which depended on the type of powder, sintering temperature and atmosphere, and heat treatment. For the more practical use of powder compositions, there was little influence by the sintering atmosphere on the Poisson's ratio of the sintered and heat-treated materials. For a partially alloyed powder (Fe-4mass%Ni-1.5mass% Cu-0.5mass%Mo)+0.8mass%C powder, Poisson's ratio versus porosity depended only on the sintering temperature at a porosity below 20%. In this case, a simpler approximate equation of Poisson's ratio of the sintered and heat-treated specimen versus porosity was proposed as follows: v = 0.300-0.266P + 0.579P 2 at 1423 K (sintering temperature) or v=0.304-0.264P + 0.548P 2 at 1523 K.

Original languageEnglish
Pages (from-to)515-521
Number of pages7
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume51
Issue number7
Publication statusPublished - 2004 Jul
Externally publishedYes

Fingerprint

Machine components
Poisson ratio
Powders
Porosity
Sintering
Elastic moduli
Steel
Temperature
Heat treatment
Chemical analysis
Hot Temperature

Keywords

  • P/M Machine Part
  • Poisson's Ratio
  • Porosity
  • Shear Modulus
  • Young's Modulus

ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys

Cite this

Poisson's ratio of sintered materials for structural machine parts. / Hirose, Norimitsu; Asami, Junichi; Fujiki, Akira; Oouchi, Kazuya.

In: Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy, Vol. 51, No. 7, 07.2004, p. 515-521.

Research output: Contribution to journalArticle

@article{93e3a38107704f1ebe5c45cf5eb1e6a5,
title = "Poisson's ratio of sintered materials for structural machine parts",
abstract = "The relationships between Young's modulus, shear modulus and Poisson's ratio of sintered materials and porosity were investigated for use as practical P/M machine parts. Three types of steel powders were prepared and then compacted, sintered, and heat-treated under various conditions. Porosity had the greatest influence on Young's modulus, shear modulus, and Poisson's ratio. Especially, Poisson's ratio was affected by the pore shape, which depended on the type of powder, sintering temperature and atmosphere, and heat treatment. For the more practical use of powder compositions, there was little influence by the sintering atmosphere on the Poisson's ratio of the sintered and heat-treated materials. For a partially alloyed powder (Fe-4mass{\%}Ni-1.5mass{\%} Cu-0.5mass{\%}Mo)+0.8mass{\%}C powder, Poisson's ratio versus porosity depended only on the sintering temperature at a porosity below 20{\%}. In this case, a simpler approximate equation of Poisson's ratio of the sintered and heat-treated specimen versus porosity was proposed as follows: v = 0.300-0.266P + 0.579P 2 at 1423 K (sintering temperature) or v=0.304-0.264P + 0.548P 2 at 1523 K.",
keywords = "P/M Machine Part, Poisson's Ratio, Porosity, Shear Modulus, Young's Modulus",
author = "Norimitsu Hirose and Junichi Asami and Akira Fujiki and Kazuya Oouchi",
year = "2004",
month = "7",
language = "English",
volume = "51",
pages = "515--521",
journal = "Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy",
issn = "0532-8799",
publisher = "Funtai Funamtsu Yakin Kyokai/Japan Soc. of Powder Metallurgy",
number = "7",

}

TY - JOUR

T1 - Poisson's ratio of sintered materials for structural machine parts

AU - Hirose, Norimitsu

AU - Asami, Junichi

AU - Fujiki, Akira

AU - Oouchi, Kazuya

PY - 2004/7

Y1 - 2004/7

N2 - The relationships between Young's modulus, shear modulus and Poisson's ratio of sintered materials and porosity were investigated for use as practical P/M machine parts. Three types of steel powders were prepared and then compacted, sintered, and heat-treated under various conditions. Porosity had the greatest influence on Young's modulus, shear modulus, and Poisson's ratio. Especially, Poisson's ratio was affected by the pore shape, which depended on the type of powder, sintering temperature and atmosphere, and heat treatment. For the more practical use of powder compositions, there was little influence by the sintering atmosphere on the Poisson's ratio of the sintered and heat-treated materials. For a partially alloyed powder (Fe-4mass%Ni-1.5mass% Cu-0.5mass%Mo)+0.8mass%C powder, Poisson's ratio versus porosity depended only on the sintering temperature at a porosity below 20%. In this case, a simpler approximate equation of Poisson's ratio of the sintered and heat-treated specimen versus porosity was proposed as follows: v = 0.300-0.266P + 0.579P 2 at 1423 K (sintering temperature) or v=0.304-0.264P + 0.548P 2 at 1523 K.

AB - The relationships between Young's modulus, shear modulus and Poisson's ratio of sintered materials and porosity were investigated for use as practical P/M machine parts. Three types of steel powders were prepared and then compacted, sintered, and heat-treated under various conditions. Porosity had the greatest influence on Young's modulus, shear modulus, and Poisson's ratio. Especially, Poisson's ratio was affected by the pore shape, which depended on the type of powder, sintering temperature and atmosphere, and heat treatment. For the more practical use of powder compositions, there was little influence by the sintering atmosphere on the Poisson's ratio of the sintered and heat-treated materials. For a partially alloyed powder (Fe-4mass%Ni-1.5mass% Cu-0.5mass%Mo)+0.8mass%C powder, Poisson's ratio versus porosity depended only on the sintering temperature at a porosity below 20%. In this case, a simpler approximate equation of Poisson's ratio of the sintered and heat-treated specimen versus porosity was proposed as follows: v = 0.300-0.266P + 0.579P 2 at 1423 K (sintering temperature) or v=0.304-0.264P + 0.548P 2 at 1523 K.

KW - P/M Machine Part

KW - Poisson's Ratio

KW - Porosity

KW - Shear Modulus

KW - Young's Modulus

UR - http://www.scopus.com/inward/record.url?scp=5144233622&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=5144233622&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:5144233622

VL - 51

SP - 515

EP - 521

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 - 7

ER -