| 摘要 |
The bimetallic material comprises a laminate of two materials, one having a high coefficient of thermal expansion, one with a low coefficient of thermal expansion. The material with the high coefficient of expansion is a corrosion resisting and heat resisting austenitic chromium-nickel steel, while the material with the low coefficient of expansion is a heat hardenable alloy of iron, nickel, cobalt and titanium and/or aluminium. It is found that this combination of materials gives rise to a bimetallic material capable of heavy duty applications without the disadvantages normally associated with such heavy duty materials.
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