Effect of High-Velocity Oxy-Fuel (HVOF) Thermal Spraying on Physical and Mechanical Properties of Type 316 Stainless Steel

Journal Article · Thu Sep 01 04:00:00 EDT 2005 · Journal of Thermal Spray Technology

DOI:https://doi.org/10.1361/105996305X59440· OSTI ID:912250

Totemeier, Terry C

Data on the microstructural, physical, and mechanical characteristics of high-velocity oxygen-fuel (HVOF)-sprayed type 316 stainless steel coatings are presented and compared with properties of wrought 316 stainless steel. Coatings were prepared at three different spray particle velocities; coating characteristics are presented as a function of velocity. The coatings had relatively low porosity and oxide contents and were significantly harder than annealed, wrought 316 stainless steel. The hardness difference is primarily attributed to high dislocation densities resulting from peening imparted by high-velocity spray particles. The coating hardness increased with increasing spray particle velocity, reflecting increased peening effects. The elastic modulus of the coatings was essentially identical to wrought material. The mean coefficient of thermal expansion of as-sprayed coatings was lower than wrought material, but the expansion of annealed coatings matched the wrought behavior.

• Research Organization: Idaho National Laboratory (INL)
• Sponsoring Organization: DOE - FE
• DOE Contract Number: AC07-99ID13727
• OSTI ID: 912250
• Report Number(s): INEEL/JOU-03-01435
• Journal Information: Journal of Thermal Spray Technology, Journal Name: Journal of Thermal Spray Technology Journal Issue: 3 Vol. 14
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COATINGS
DISLOCATIONS
HARDNESS
MECHANICAL PROPERTIES
OXIDES
POROSITY
SHOT PEENING
STAINLESS STEELS
THERMAL EXPANSION
VELOCITY
coatings
hardness
high-velocity oxygen-fuel
stainless steel
thermal expansion
thermal spray