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Iron-based material having excellent oxidation resistance at elevated temperatures and process for the production thereof

  • US 5,612,090 A
  • Filed: 06/06/1995
  • Issued: 03/18/1997
  • Est. Priority Date: 11/20/1992
  • Status: Expired due to Fees
First Claim
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1. A process for production of an oxidation resistant iron-based heat-generating material which comprises vacuum evaporating aluminum onto a surface of an iron-based alloy capable of generating heat by passing electricity therethrough wherein an oxygen partial pressure in a vacuum gaseous atmosphere for the vacuum evaporation is adjusted so that there is formed directly on the surface of the iron-based alloy a coating consisting of aluminum and oxygen, the amount of the oxygen in said coating being less than the stoichiometric amount of oxygen in Al2 O3.

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