The ultrasonic vibratory test was carried out to evaluate the cavitation erosion/corrosion resistance of welded-deposited austenitic stainless steel/E308L-17. Three layers of the E308L-17 electrode were deposited onto AISI 1040 substrate utilizing Shielded Metal Arc Welding (SMAW) process. The eroded surfaces of the E308L welded deposit/coating and AISI 1040 substrate steel have been analyzed by
The cavitation erosion resistance was discussed in terms of the measured mass losses and the topographical features of the worn surface. 3. Results and discussions3.1. Cavitation erosion resistance of Stellite alloy weld overlays. Wear, 267 (2019), pp. 1954-1960. Google Scholar. Corrosion resistance at reduced cost:weld overlay Corrosion resistance at weld overlay cladding The boom in offshore oil and gas will ensure steady demand for high-performance alloys for years to come. But these alloys are expensive, so the need for cladding as a means to reduce alloy use is bound to intensify. This article looks at a special type of cladding, weld overlay cladding
Sep 07, 2010 · As a result we found that ASTM-A514 high strength steels present excellent cavitation erosion resistance properties. The cavitation eroded surface is followed by optical profilometry technique. Determination of mechanical properties and examinations of the eroded surfaces of the samples have also been carried out in order to identify the erosion mechanisms involved in the degradation of these F'IELD PERFORMANCE OF CAWATION EROSION In some cases Stellite 21 and other expensive used in areas where there was severe cavitation erosion. By late 1986 R&D and F&H PR had installed test coatings and weld overlays of cavitation resistant materials in several hydro plants. CAVITATION EROSION RESISTANT ALLOY TENNESSEE VALLEY AUTHORITY RACCOON MOUNTAIN UNIT-3 OCTOBER 1992
Slurry jet erosion [6-7], slurry pot [6,8], cavitation erosion [9-10] and pin on disk [11-12] are some of the various testing methods which have been used to demonstrate the corrosion and wear resistance of Stellite alloys. A study conducted by Neville and Hodgkiess  was Hardfacing for Valves:Materials and ProcessesMar 09, 2021 · Table 1 gives the chemical composition and some physical properties of Stellite 6 alloy. A hard carbide phase in the CoCr alloy matrix makes this material highly resistant to corrosion and galling. Figure 1. Stellite 6 overlay on the disk contact surfaces of a dual plate check valve (photo courtesy of Crane Stockham Valve) Table 1.
Mar 09, 2021 · Table 1 gives the chemical composition and some physical properties of Stellite 6 alloy. A hard carbide phase in the CoCr alloy matrix makes this material highly resistant to corrosion and galling. Figure 1. Stellite 6 overlay on the disk contact surfaces of a dual plate check valve (photo courtesy of Crane Stockham Valve) Table 1. STELLITE 1 ALLOY TECHNICAL DATA - Arc Welding Stellite® 1 contains a high propor-tion of hard, wear resistant primary carbides. These render the alloy well suited to applications involv-ing extreme low-angle erosion and severe abrasion, with some sacrifice in toughness. Compared to other Stellite® alloys it is more crack-sen-sitive, and care should be taken to
Stellite® 1 has good general corrosion resistance. The typical electrode potential in sea water at room temperature is approx. -0.4 V (SCE). Stellite® 1 corrodes primarily by a pitting mechanism and not by general mass loss in seawater and chloride solutions. More detailed information regard-ing corrosion resistance can be provided on request. STELLITE 21 ALLOY - DeloroStellite TM 8. CORROSION RESISTANCE Stellite TM 21 is resistant to oxidizing and reducing gaseous atmospheres up to 1150°C (2100°F). Because its ternary alloying element is Mo and not W, it has higher resistance to reducing or complex environments (e.g. sulphuric acid, hydrochloric acid, and sour gas) than CoCrW alloys such as Stellite TM 6. The typical electrode potential in sea water at
resistance applications, has excellent resistance to many forms of mechanical and chemical degradation over a wide temperature range, and retains a rea-sonable level of hardness up to 500°C (930°F). It also has good resistance to impact and cavitation erosion. Stellite® 6 is ideally suited to a variety of hardfacing processes and can be turned with carbide tooling. STELLITETM 6 ALLOY - DeloroSTELLITETM 6 ALLOY STELLITE TM COBALT-BASED ALLOYS consists of complex carbides in an alloy matrix. They are resistant to wear, galling, and corrosion and retain these properties at high temperatures. Their exceptional wear resistance is due mainly to the unique inherent characteristics of the hard carbide phase dispersed in a CoCr alloy matrix.
The cavitation and erosion resistance of 21 thermal spray coatings and four weld repair materials were investigated in the laboratory using cavitation jet and slurry erosion testing. Of the thermal spray coatings, Stellite® 6 deposited by the high velocity oxyfuel (HVOF) Cavitation and high-velocity slurry erosion resistance of Mar 01, 2012 · In cavitation erosion tests of Stellite 6 alloy, the maximum stable erosion rate was 0.015 mm 3 h 1 for the Stellite 6 and 0.122 mm 3 h 1 for the 13-4 steel. In slurry erosion, the results showed that the highest resistance in Stellite 6 was observed at an impingement angle of 15° while the mass losses were greater at 45°. During the development of the welding procedure some craters and