1-20 of 71 Search Results for

visual observation

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 307-314, May 24–28, 2021,
..., the oxidation behavior of two cobalt base alloys, CoCrMoSi (T14) and CoCrNiMoSi (T19), was evaluated in superheated steam (SHS, 0.1MPa) at 800 °C for up to 500 hours. After the exposure, both T14 and T19 alloys experienced weight gain caused by oxidation. Visual observation and SEM surface analysis revealed...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1-7, May 8–11, 2000,
... on high-speed end-on observation of the arc. The framing rate of 40,500 frames per second has allowed the visualization of the anode attachment movement and the determination of the thickness of the cold gas boundary layer surrounding the arc. The images have been synchronized with voltage traces. Data...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 743-752, May 8–11, 2000,
... is to describe an imaging device allowing the visualization of particle impacts on cold and hot surfaces. This technique makes it possible : • to investigate the "impact mode" : splashing, deposition or rebound, • to link the particle parameters at impact and the substrate parameters to the observed impact mode...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 169-174, May 25–29, 1998,
... segment the volume loss could be calculated using eq. 1. and eg. 2. WC-Co-Cr coatings H = R-ylR2-r2 (l) Wear rate. The WC-Co-Cr coatings sprayed via the HVAF process showed wear rates that were an order of magnitude lower V3R-H) (2) and more consistent than those sprayed via HVOF. Visual observations...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 281-287, May 8–11, 2000,
... of 1 kg and a diameter of Pre-spraying tests were carried out manually, and 25 mm was dropped to the coating from the height of 1 m spraying distance was selected on the basis of visual observations. With pre-spraying tests the pre-heat Electrical non-porosity test consists in looking for any...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1025-1031, May 8–11, 2000,
... area were visually observed. Fe-Cr-Ni 53-20 60Ni-23Cr-8Mo Ni-Cr-Mo 53-16 Metallographic Examination of Sprayed Coatings The sprayed specimens were cut and mounted in Substrate l.lCr-0.2Mo-0.4C-Fe epoxy resin, finally polished with SiC sand paper and diamond paste. The microstructure of each coating...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 959-964, September 15–18, 1997,
... resins and the hardeners so the incident light fluorescence optical technique could be used to Epofix VI D87 visually observe the degree of penetration of the epoxies. The specimens were observed with a xenon light source Epofix VI & Pressure D85 underfluorescencetechnique B5 module. The observation...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 445-450, May 25–29, 1998,
... of HVOF jets nozzle exit diameter and the diverging angle at the exit of from gun nozzle exit with nozzles used without spray powder were evaluated by means of visual observation and by photographing them. The nozzle intake pressure was measured through a powder feed port by a pressure indicator (KYOWA...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 346-353, May 24–28, 2021,
... by the different topics. allow electrolytes or ions to reach the substrate and cause corrosion. The salt spray test can be used to investigate the Sealing of the TS-coatings with UV dual-cure sealer A (1K) corrosion protection effect of organic coatings. The results are usually based on a visual observation...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 60-65, May 24–28, 2021,
... at 2012°F (1373K) for 50 minutes followed by a rapid Figure 2: Erosion test setup. cool down and soak at room temperature for 10 minutes. This cycle was repeated 20 times every day, after which the sample Results conditions were visually observed. To ensure each sample saw similar thermal history during...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 229-234, May 24–28, 2021,
... and a zone with high turbulence. regime, and during the dispersion as well (Fig. 5d). This good These observations are corroborated by an experimental comparison suggests a physically realistic role of a Magnus visualization of the copper powders entrained by the flow. Their effect on the kinematic flow...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 717-722, May 25–29, 1998,
... pore networks in the coating. With the filling of the material different from the composition of the coating into the pores the structure of the coating including nonbonded interface area and also generally referred pores can be visualized. According to the distribution of filler in the coating...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 551-559, May 8–11, 2000,
... evaluated by means of visual observation and by temperature gradients. photographing them. The nozzle intake pressure was measured through a powder feed port by pressure indicator (Kyowa 6. Specific heat of particle is independent of its Electronic Instrument PF-30KF)[ 10]. The velocity , surface...
Proceedings Papers

ITSC 2021, Thermal Spray 2021: Proceedings from the International Thermal Spray Conference, 354-359, May 24–28, 2021,
... particle sizes, (ii) their impact velocities and (iii) the analyzed by evolution of the stress, strain and temperature observed nano-crystallization in deposited layers [1-3]. This fields. Stress and strain field results showed that localized study mainly focuses on the first two questions. inelastic...
Proceedings Papers

ITSC1997, Thermal Spray 1997: Proceedings from the United Thermal Spray Conference, 83-90, September 15–18, 1997,
... in plant successfully showed the field applicability of the additional crack growth which may lead to failure. This HVOF thermal spray process to deposit a good quality was seen with CERHAB coatings annealed with short coating inside a hydroelectric turbine. Visual observations schedules that developed...
Proceedings Papers

ITSC1998, Thermal Spray 1998: Proceedings from the International Thermal Spray Conference, 329-334, May 25–29, 1998,
... dynamics leading to the observed results. The objective of this paper is to present the results of an experimental investigation of cold jet behavior through Schlieren images and velocity measurements coupled with a theoretical study of the 329 breakup and transport of molten particles in the wire arc...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1011-1015, May 8–11, 2000,
... that exhibited different microstructures, with variation in the levels of both Reliance on immersion methods to compare corrosion porosity and oxide. Test pieces with dimensions 25mm x performance requires long test diu^tion and a quahtative 25nun were coated to a thickness of about 300|j,m. Cross visual...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1319-1323, May 8–11, 2000,
..., process, is poor thermal shock resistance of the utilizing different robot programs. After deposition, TBC. CSM has found a satisfactory solution to this their cross-sections were observed by optical problem by developing an innovative methodology, 1319 microscopy and by SEM to verify the coating Zr02...
Proceedings Papers

ITSC2000, Thermal Spray 2000: Proceedings from the International Thermal Spray Conference, 1361-1369, May 8–11, 2000,
... the reduce the cost and to provide a quality structure. The present software is a visual quality control tool. approach to the whole chain of characterization is based on the user's point of view. Management of the entire chain of characterization consists in storing the digital and Generally speaking...
Proceedings Papers

ITSC1996, Thermal Spray 1996: Proceedings from the National Thermal Spray Conference, 1-6, October 7–11, 1996,
.... it provides a visually simple to determine criterion for an at least rough characterization of a particular flame 91,0 temperature 151. It has been found that similar relative spraying distances generally lead to coatings with T Substrate: 750°C - 850°C =similar properties, if they are close to 100 % (lr 1...