Modelling of the in-flight behaviour of stainless steel powder particles in high velocity oxy-fuel spraying

1998 ◽  
Vol 79 (1-3) ◽  
pp. 213-216 ◽  
Author(s):  
V.V Sobolev ◽  
J.M Guilemany ◽  
A.J Martı́n ◽  
J.A Calero ◽  
P Vilarrubias
Author(s):  
V.V. Sobolev ◽  
J.M. Guilemany ◽  
A.J. Martin

Abstract Influence of the in-flight behaviour of the stainless steel 316 powder particles during high velocity oxy-fuel (HVOF) spraying on the properties (porosity and level of oxidation) of the coating is studied. Modelling of the in-flight behaviour is undertaken which takes into account the combustion process, gas dynamics, gas-particle interactions, acceleration and deceleration of the gas flow, heat transfer in the particles and full thermal history of the particles including their melting, cooling and the possible solidification. The results obtained are used for the explanation of the experimental data on the coating porosity and level of oxidation.


2012 ◽  
Vol 217-219 ◽  
pp. 483-486
Author(s):  
Mei Yuan Ke

Effects of Sintering atmosphere and temperature on properties of warm compacted 410L stainless steel powder were studied. Sintered density, hardness, tensile strength and elongation were measured. Results showed that in order to achieve high comprehensive properties, the optimal sintering temperature was 1230°C for 410L stainless steel powder. At the same sintering temperature, density and hardness sintered in vacuum were much higher than that sintered in cracked ammonia while tensile strength sintered in cracked ammonia were much higher than that in vacuum. When sintered in vacuum at 1230°C, sintered density was 7.45 g•cm-3, hardness was 65 HRB, tensile strength was 410 MPa and elongation was 29.5%. When sintered in cracked ammonia atmosphere at 1230°C, sintered density was 7.26 g•cm-3, hardness was 97 HRB, tensile strength was 515 MPa and elongation was 3.8%.


JOM ◽  
2016 ◽  
Vol 69 (3) ◽  
pp. 592-596 ◽  
Author(s):  
Mohsen Ziaee ◽  
Eric M. Tridas ◽  
Nathan B. Crane

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