Mechanical Properties and Thermal Expansion Characteristics of Low Thermal Expansion Ductile Cast Iron with same Nickel Equivalent (NiE)

Minoru Hatate; Tohru Nobuki; Shoji Kiguchi; Kazumichi Shimizu

doi:10.4028/www.scientific.net/KEM.457.380

Paper Titles

Some Key Points on High Strength Grey Iron Cylinder Block Production
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Effect of Selected Alloying Elements on Mechanical Properties of Pearlitic Nodular Cast Irons
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Plate Fracture of Nodular Cast Iron
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Lubricated Friction and Wear Properties of P-B Bearing Flaky Graphite Cast Iron
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Mechanical Properties and Thermal Expansion Characteristics of Low Thermal Expansion Ductile Cast Iron with same Nickel Equivalent (NiE)
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Effect of Copper Addition on Mechanical Properties of Nodular Indefinite Chilled Iron (NICI)
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Notch Effects on Impact and Bending Characteristics of Spheroidal Graphite and Compacted Vermicular Graphite Cast Irons with Various Matrices
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Effects of Graphite Shape on Thermal Fatigue Property of Thin Wall Graphitic Cast Irons
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Bending Strength of Cast Materials Reinforced with Hard Particles
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 457Mechanical Properties and Thermal Expansion...

Mechanical Properties and Thermal Expansion Characteristics of Low Thermal Expansion Ductile Cast Iron with same Nickel Equivalent (NiE)

Abstract:

Low thermal expansion ductile cast iron is expected to become a new structural material with high dimensional stability against temperature change. We tried to develop a new low thermal expansion ductile cast iron by means of adding C and Si to Superinver alloy. In this study we prepared four kinds of ductile cast irons whose Co contents vary from 0% to 12 %, and investigated about the effects of Co content and solution-treatments on several main characteristics such as coefficient of thermal expansion and mechanical properties. The results obtained are as follows: With increase of Co content the amount of martensite increases but this martensite can be inverse-transformed to austenite totally or greatly by solution-treatment followed with water-quenching. In the case of Co content less than some 9 % the ability of relatively larger plastic deformation can be expected in inverse-transformed austenite.

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Periodical:

Key Engineering Materials (Volume 457)

Pages:

380-385

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.457.380

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Online since:

December 2010

Authors:

Minoru Hatate, Tohru Nobuki, Shoji Kiguchi, Kazumichi Shimizu

Keywords:

Austenite, Invar, Low Thermal Expansion Cast Iron, Martensite, Mechanical Property, Thermal Expansion

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References

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