AMS 2759-10氮化电位控制的自动气体氮化.pdf

TheEngineering Society =For Advancing Mobility AEROSPACE -. AMS 2759/10 -Land SeaAir and Space, I N T E R N A T I O N A L MATERIAL ISSUed MAY 1999 400 Commonwealth Drive,Warrendale. PA 15096-0001 SPECIFICATION I Submittedfor recognition as an American National Standard I Automated Gaseous Nitriding Controlled by Nitriding Potential 1. SCOPE: 1.1 Purpose: This specification establishes requirements and proceduresfor generating nitrided surfaces on steel parts using a process controlled by the nitriding potential. See definition of compound layer in 8.1 .l. 1.2 Application: The nitriding process described herein is used typically to produce a nitride case on carbon and alloy steels, tool steels, nitriding steels, corrosion resistant steels and other ferrous alloys. Applicable, allowance should be made for growth. See 8.3. 1-2.1 Specifically, the nitriding process described herein is recommendedfor those nitriding applications where engineering drawings do not permit a white layer or only a limited white layer thickness. 1.3 Classification: The nitriding processes described herein, are classified as follows: 1.3.1 Class O: Nowhite layer permitted. (Not recommendedfor stainless steels.) 1.3.2 Class 1: 0.0005inch (0.013 mm) maximumwhite layer thickness permitted. 1.3