FeAl and Mo-Si-B Intermetallic Coatings Prepared by Thermal Spraying Page: 6 of 8
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13. Chu F, Thoma DJ, McClellan K, Peralta P, He Y. Intermetallics 1999;7:611.
14. Grosdidier T, Liao HL, Tidu A. In: Berndt CC, editor. Thermal Spray: Surface Engineering via Applied Research. Materials
Park, OH: ASM International, 2000. p. 1341.
15. Gill SC, Clyne TW. Metall Trans B 1990;21B:377.
16. Srinivasan SR, Schwartz RB. J Mater Res 1992;7:1610.
Table 1: Particle temperatures and velocities for HVOF spraying
Chamber Pressure Equivalence Ratio Mean Particle Velocity Mean Particle
(kPa) (m/s) Temperature ( C)
350 1.0 540 1320
520 1.0 660 1345
650 1.0 700 1340Table 2: Particle temperatures and velocities for air plasma spraying
Condition Anode Current Primary Gas Secondary Mean Particle Mean Particle
(A) Flow: Gas Flow: Velocity Temperature
Ar (slma) He (slm) (m/s) ( C)
Low- 703/720/112 800 40 10 180 2600
velocity
High- Mach II 800 80 20 350 2130
velocity
Table 3: Residual stresses for FeAl coatings applied to carbon steel substrates
Spray Particle Coating Curvature Average Average XRD
Velocity Thickness Coating Stress Substrate Stress Coating Stress
(m/s) ( m) (m1 ) (MPa) (MPa) (MPa)
540 260 0.023 - 10 0
540 480 0.082 - 10 0
540 690 0.102 - 10 +10
540 910 0.225 - 10 + 10
540 1130 0.488 - 30 +30 - 40
660 340 0.206 - 40 +10
660 470 0.716 -120 +40
660 770 1.147 -90 +50
660 1030 1.447 - 90 +70
660 1250 1.835 -110 +100 -100
700 260 0.415 -130 +20
700 490 1.389 -200 +70
700 700 1.647 -190 +90
700 970 2.513 -180 +130
700 1270 3.096 - 180 + 170 - 150Table 4: Residual stresses for Mo-Si-B coatings applied to carbon steel substrates
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Totemeier, T. C.; Wright, R. N. & Swank, W. D. FeAl and Mo-Si-B Intermetallic Coatings Prepared by Thermal Spraying, article, April 22, 2003; Idaho Falls, Idaho. (https://digital.library.unt.edu/ark:/67531/metadc781673/m1/6/: accessed April 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.