Patent · US Expired

Selective chromizing in a molten lead medium

US4242420A · kind A · utility

2Cited by
3References
2Claims
0Family size

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Inventors

Key dates

Filing dateJul 6, 1979
Grant dateDec 30, 1980
Priority date
Expiry dateJul 6, 1999

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/12854
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

A ferrous based substrate is diffusion coated by contacting the substrate with a molten alloy bath consisting essentially of lead and chromium, wherein the quantity of chromium is less than 0.85% of the weight of the lead.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.