公开(公告)号：US3748172A

公开(公告)日：1973-07-24

申请号：US3748172D

申请日：1971-05-17

Applicant: CHROMALLOY AMERICAN CORP

Inventor： BLIZE R ,  SPEIRS K ,  WEINSTEIN M

IPC: C23C10/52 ,  C23C12/02 ,  C23F7/00 ,  C23C9/02 ,  C23F17/00

CPC classification number: C23C10/52 ,  C23C12/02 ,  Y10T428/12792

Abstract: A METHOD IS PROVIDED FOR IMPROVING THE CORROSION RESISTANCE OF MATERIAL SUBSTRATES. THE METHOD IS PARTICULARLY APPLICABLE TO THE PROTECTION OF METAL SUBSTRATES, SUCH AS FERROUS METAL ARTICLES, AMONG OTHER METALS, AND, IN PARTICULAR, TO THE PROTECTION OF LOW ALLOY STEEL GAS TURBINE ENGINE COMPONENTS FOR AIRCRAFT IN WHICH THE SURFACE IS PROVIDED WITH AN ADHERENT PROTECTIVE LAYER OF A SACRIFICAL COATING RICH IN MAGNESIUM AND ALSO CONTAINING SILICON, OXYGEN AND OPTIONALLY IRON. THE COATING IS CHARACTERIZED BY THE PRESENCE OF MAGNESIUM SILICIDE AS A MAJOR ACTIVE CONSTITUENT.