INORGANIC COATINGS FOR SPRING APPLICATIONS.
SPRINGFIELD ARMORY MASS
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Inorganic coatings and surface pretreatments such as vaporblast, gritblast, and shot-peening processes were investigated and evaluated to determine their effect on fatigue life of experimental helical springs used in small arms weapons systems. Surface pretreatment improves fatigue life of both coated and noncoated springs. The use of surface pretreatment such as shot-peening eliminates the necessity of baking to minimize hydrogen embrittlement effects. The shot-peening process not only provided the greatest improvement in fatigue life but also minimized the dydrogen embrittlement from the various coating processes. Test procedure is described and results discussed. Author
- Coatings, Colorants and Finishes
- Manufacturing and Industrial Engineering and Control of Production Systems