ABSTRACT The cobalt-based Stellite 6 coating with a thickness of 0.5 mm was deposited onto 45 carbon steel by electro-spark deposition technology. Microstructure, chemical composition, phase composition, microhardness distribution and wear resistance of the coating were researched by a series of experiments. The results indicate that, the coating with refined and compact microstructure is mainly composed of Co, Cr7C3, Co6W6C and CrCo. The coating makes metallurgical bonding interface with the substrate. Microhardness of the coating is improved significantly with an average value of 827.9 HV0.5, which is about 3.6 times that of the substrate. Under the same experimental condition, mass loss of the substrate is about 4.2-4.5 times that of the coating, so the coating shows excellent wear resistance. Main wear mechanism of the coating is abrasive wear at low speed or low load stage, and fatigue wear at high speed or heavy load condition. Keywords: electro-spark deposition, cobalt-based alloy, coating, microstructure, wear resistance, wear mechanism 1. Introduction A cobalt-based alloy, which containing Co, Cr, W, Mo, Ti, La etc, is a hard alloy that can resist many kinds of wear and corrosion. I

Alloy 6b is a cobalt-base alloy with excellent corrosion resistance to severe conditions and high temperatures. This nickel cobalt alloy provides outstanding resistance to most types of wear. Stellite 6b® provides inherent wear resistance, it is not the result of heat-treatment, plating, nitriding, or other methods used to produce a superficial hardness on metal parts. Stellite 6b® Features Magellan Metals` cobalt alloy 6b® is an extremely strong nickel alloy that offers many beneficial features, including: Resists erosive wear Good impact & thermal shock resistance Resists heat & oxidation Abrasion & corrosion resistant Resists seizing & galling Good strength Meets UNS R30006 specifications Stellite 6B® Nickel-Based Alloy Applications Magellan`s 6b alloy is extremely suitable in environments where a high combination of strength, high modulus values and good corrosion resistance are required. Some examples of these types of applications, include: Doctor blades Valve parts Pump plungers Knives

What is Stellite? In simple terms a Stellite alloy is designed to cope with extreme wear and tear and by introducing a variety of other components can be specifically moulded for a particular requirement. The different varieties of Stellite alloy can take in an array of different elements such as nickel, iron, carbon, magnesium, sulphur, silicon and titanium. By introducing other elements to the alloy, specific levels of wear resistance, corrosion resistance and heat resistant materials can be created. The material is commonly used in environments where temperatures range from 600 up to 1112°F (315 to 600°C). It is the ability to maintain the core strength and resistance to wear and tear which is central to the benefits of Stellite. Main benefits of Stellite As we touched on above, the main benefits of Stellite are the wear resistance, strength of the material as well as the ability to work under extreme temperatures. Particular characteristics required for a Stellite alloy can be finely tuned by adding a mix of different alloys – something which has been perfected over the years. It will be no surprise to learn this is a relatively expensive alloy for the simple fact that it is so durable it is almost impossible to machine manipulate. Therefore castings for Stellite based products have to be as perfect as possible so there is minimal corrective action required. Indeed rather than your traditional machine cutting action to [finish off" a rough edged product the only way to manipulate Stellite is by grinding. So, on one hand the toughness and strength of Stellite are per

The penetration of corrosion resistant alloy is expected to grow in chemical processing, pulp & paper, food & beverage, aerospace & defense and automotive industries owing to mechanical properties. On the basis of material, the global corrosion resistant alloy market has been segmented into iron-based alloy, nickel-based alloy, cobalt-based alloy, and others (chromium-based alloy, stainless steel-based alloy, titanium-based alloy, and molybdenum-based alloy). Penetration of stainless-based alloy is expected to grow over the forecast period owing to growing demand for machine components in various industries. On the basis of end use, the global corrosion resistant alloy market has been segmented into automotive & transportation, aerospace & defense, oil & gas, industrial machinery, energy & power, Aerospace & defense application segment is expected to witness significant growth over the forecast period. Corrosion resistant alloys are gaining traction in aerospace & defense industry, especially in engine manufacturing segment. On the basis of region, the global corrosion resistant alloy market is segmented into North America, Europe, Asia Pacific, Latin America, and Middle East & Africa. North America is estimated to account for major revenue share in the global corrosion resistant alloy market owing to the presence of aerospace and defense manufacturers in the region.

Stellite Alloy Stellite is a hard alloy that is resistant to all types of wear and corrosion and high temperature oxidation. Known as the cobalt-based alloy, stellite was invented in 1907 by American Elwood Hayness. Stellite alloys contain cobalt as a main component and contain a considerable amount of nickel, chromium, tungsten and a small amount of alloying elements such as molybdenum, niobium, tantalum, titanium and niobium, and occasionally iron. Depending on the composition of the alloy, they can be made into welding wire. The powder can be used for hard surface surfacing, thermal spraying, spray welding, etc., and can also be used for casting and forging parts and powder metallurgy parts. Stellite According to the classification of use, stellite alloy can be divided into stellite wear-resistant alloy, stellite high-temperature alloy and stellite wear-resistant and aqueous corrosion alloy. Under normal working conditions, in fact, it is both wear-resistant, high-temperature resistant, wear-resistant and corrosion-resistant. Some working conditions may also require high temperature resistance, wear resistance and corrosion resistance, and the more complicated it is. Under the circumstance, the more the advantages of the stellite alloy can be reflected. Typical grades for Stellite are: Stellite 1, Stellite 4, Stellite 6, Stellite 12, Stellite 20, Stellite 31, Stellite 100, and the like. In China, the research on the stellite superalloy is ma

Silver tungsten is a pseudo alloy composed of silver and tungsten. Silver tungsten is a metal matrix composite. Due to the high melting point of tungsten, it cannot melt with silver. Instead of the conventional preparation method, the preparation method of silver tungsten is powder metallurgy. The silver tungsten production process includes component mixing, pressing, sintering melt penetration and cold working. Silver tungsten combines the advantages of metal tungsten and silver. Tungsten has a high melting point (tungsten melting point of 3410 ° C) and a large density (tungsten density of 19.34 g / cm 3 ), and silver has excellent electrical conductivity. Silver tungsten (component range WCu7 ~ WCu50) has a uniform microstructure, high temperature resistance, high strength and high density. Silver tungsten is also characterized by their high strength and resistance to soldering or sticking. They are primarily made by infiltration and the nominal silver content varies between 20-50%. By increasing the amount of tungsten, hardness and soldering are reduced. The composite alloy group is particularly preferably used in air. Silver tungsten materials are used in industrial and household circuit breaker applications where good soldering and corrosion resistance are important. Available in a variety of grades: - Higher g

Brief introduction of Tungsten copper alloy Tungsten copper alloy bar is integrates the advantages of tungsten and copper, within which tungsten's melting point is higher( about 3410 ℃) and density is larger (about 19.34g/cm3). Tungsten copper alloy is easy to be machined, and is widely used in spaceflight, aviation, electron, electronic power, metallurgy, mechanism etc. Tungsten copper alloy has different objects, such as rod, flat, bar, square, circle, ring, pipe, tube, bush and so on. And tungsten copper alloy bar is a kind of tungsten copper alloy, whose shape is bar, its transverse surface could be polygon, round or any other shape that you want. Chinatungsten supply tungsten copper alloy bar of high physical and mechanical properties, and we cut it to customers' desired lengths in diameters between 50.8mm to 19050mm. In addition, we set from Dia.1mm to Dia. 60mm, length 200mm tungsten copper alloy bar as standard. What's more, Chinatungsten offer three different surface processes or finishes according to your demand: black, cleaned and ground. Tungsten Copper Alloy Bar, the advantages of: High conductivity, high temperature sintering, and melting refined copper are from the process of composite materials. In addition, there are arc off a good performance, good thermal conductivity, thermal expansion of small, high-t

Brief introduction of Tungsten copper alloy Tungsten copper alloy bar is integrates the advantages of tungsten and copper, within which tungsten's melting point is higher( about 3410 ℃) and density is larger (about 19.34g/cm3). Tungsten copper alloy is easy to be machined, and is widely used in spaceflight, aviation, electron, electronic power, metallurgy, mechanism etc. Tungsten copper alloy has different objects, such as rod, flat, bar, square, circle, ring, pipe, tube, bush and so on. And tungsten copper alloy bar is a kind of tungsten copper alloy, whose shape is bar, its transverse surface could be polygon, round or any other shape that you want. Chinatungsten supply tungsten copper alloy bar of high physical and mechanical properties, and we cut it to customers' desired lengths in diameters between 50.8mm to 19050mm. In addition, we set from Dia.1mm to Dia. 60mm, length 200mm tungsten copper alloy bar as standard. What's more, Chinatungsten offer three different surface processes or finishes according to your demand: black, cleaned and ground. Tungsten Copper Alloy Bar, the advantages of: High conductivity, high temperature sintering, and melting refined copper are from the process of composite materials. In addition, there are arc off a good performance, good thermal conductivity, thermal expansion of small, high-t

Cobalt chromium alloy is one kind of wear ,galling and corrosion resistance alloy, its remain there properties at high temperature , another name is stellite alloy , but stellite is a registered trade name of Feloro stellite , so mostly we use cobalt chromium alloy to name it . cobalt chromium alloys consist of complex carbide in an alloy matrix . SYTOP has 20 years research and production experience in cobalt chromium. The widely used grades are stellite 6 , stellite 3 , stellite 12, also some customers need stellite 1, stellite 4, stellite 20 and stellite 21 and so on . all of these grades are available in SYTOP and we have ability to achieve customer`s idea to design and real products . For example , Grade 6 is the most widely used of the wear resistance cobalt chromium alloys and exhibits good performance , it is famous with its super wear resistance over a wide temperature range and retains a reasonable level of hardness up to 500℃. It also has good resistance to impact and cavitation erosion . SYTOP has two more ways to support you , powder metallurgy , casting , hard facing and forging . When the RFQ arrived , we will confirm all the technical details with our engineers and send best solution or price for making a decision .

Stellite Alloy Stellite is a hard alloy that is resistant to all types of wear and corrosion and high temperature oxidation. Known as the cobalt-based alloy, stellite was invented in 1907 by American Elwood Hayness. Stellite alloys contain cobalt as a main component and contain a considerable amount of nickel, chromium, tungsten and a small amount of alloying elements such as molybdenum, niobium, tantalum, titanium and niobium, and occasionally iron. Depending on the composition of the alloy, they can be made into welding wire. The powder can be used for hard surface surfacing, thermal spraying, spray welding, etc., and can also be used for casting and forging parts and powder metallurgy parts. Stellite According to the classification of use, stellite alloy can be divided into stellite wear-resistant alloy, stellite high-temperature alloy and stellite wear-resistant and aqueous corrosion alloy. Under normal working conditions, in fact, it is both wear-resistant, high-temperature resistant, wear-resistant and corrosion-resistant. Some working conditions may also require high temperature resistance, wear resistance and corrosion resistance, and the more complicated it is. Under the circumstance, the more the advantages of the stellite alloy can be reflected. Typical grades for Stellite are: Stellite 1, Stellite 4, Stellite 6, Stellite 12, Stellite 20, Stellite 31, Stellite 100, and the like. In China, the research on the stellite superalloy is mainly deep and thorough. Unlike other superalloys, the stellite superalloy is not reinforced by an ordered precipitate phase

We are one of the leading manufacturers of Cobalt Chromium Alloy mechanical parts offered at an unbeaten price. we have almost 20 years producing experience for over 500 kinds of products and 10 years exporting experience served satisfied customers in over 50 countries. We support our customers to translate his idea to real product. Appreciate our designer and engineer, we can realize your design easily into actual parts in a short time. And our sales are trained to be with professional knowledge and good English speaking ability, you can always find us over the phone, through email or through online chat support services. Whatever questions you have, we will answer within 24 hours. That`s our guarantee. Your products can be fulfilled by casting process, powder metallurgy process and machining with different types and specifications of facilities. Among which, PM process is our unique technique. The products are with better strength and no pores, no shrinks inside. With our strong design and production capacity, we can realize your order from simple to complicated, from 1pc to large quantities in a guaranteed time. And with our strict testing procedures, we guarantee zero defect delivery. We are proud to support our customers to get more values, to create new business. You may have many options, so we appreciate your loyalty and business. Thank you. Welcome to contact us for cooperaton.

We have a range of cobalt-chromium and cobalt-based alloys for use in medical, dental, aerospace and industrial applications. Cobalt-chromium alloy is a cobalt-based alloy with a higher density than stainless steel. It is resistant to corrosion, abrasion and heat. It combines good mechanical properties with excellent tribological properties. Its low carbon content and uniformity of carbide distribution in its microstructure give it a good polishing performance. This alloy is used in the medical field to make orthopedic prostheses for the knee, hip and spine. Cobalt-chromium alloys have higher hardness than titanium alloys and stainless steels. This alloy grade is also used in the dental field for the fixation of denture devices (tooth bridges...) For the above purposes, we recommend the following different forms of cobalt-chromium alloy: Small diameter bar, Cobalt-chromium discs of different thicknesses for CAD/CAM. The discs we of