Arcmelt - Performance-Enhanced Alloys and Coatings

ArcMelt™ intends to be the largest sub-contract manufacturer of performance enhanced alloys. Our customers are well aware of their current alloy performance problems and this is the reason that ArcMelt has chosen to work solely with high alloy-composite technologies.

ArcMelt's product line consist of alloys whose applied structure is of greater importance than its actual chemistry; an approach often overlooked in industry. ArcMelt's thermally applied wire feed stocks offer performance characteristics not found in any other overlay.

MULTI-LAYERED COMPOSITE ALLOY WIRE

Our multi-layered composite alloys offer:

• Much lower oxide content
• Even distribution of elemental chemistry
• A true exothermic reaction
• A deposit containing a higher volume of aluminide phase

QUASI-COMPOSITE ALLOY WIRE

ArcMelt can manufacture virtually any alloy chemistry using minimal resources, and allow the utilisation of powder metal or ceramic technology.

A broad range of tubing and powder chemistry is commercially available. Larger diameter wires can be produced, which translates to faster deposition rates for both welding and spray.

PRECIPITATED CARBIDE THERMAL SPRAYED COATING

Our precipitated carbide thermal sprayed coating:

• Is 30% to 40% tungsten metal and low in oxide content
• Can be used 'as sprayed' for corrosion resistance PREN of 80.98
• When heat treated in a carburizing environment will produce internal carbides through precipitation
• At elevated temperatures will diffuse into the base material, forming a metallurgical interface

DISPERSED OXIDE COATING SYSTEM

Our dispersed oxide coating system provides customized coating, structure and resulting chemistry, and homogeneous distributions of oxides inherently reduce the internal stresses normally associated with high chrome-containing alloys.

Oxide protection is characteristic throughout the coating thickness, as opposed to only its surface, which is ideal for reducing environments. There are no oxide stringers or cracks to initiate interparticle corrosion, and it is resistant to cracking in high-temperature thermal cycling environments.

RAP ALLOY POWDER

Our RAP alloy powder provides:

• The ability to manufacture unique complex metallic alloys: many physical and chemical properties can be obtained
• Flexibility of alloy chemistry and composition that translates directly to the powder
• A process that allows one to manufacture antiferromagnetic oxide-containing composites
• The ability to be manufactured in commercial quantities

AMC 4301 FE/CR/NI/AL/B IRON-BASED COATING

A product designed primarily as an iron-based intermetallic composite for the mining industry, the function of this coating is to produce a slick wear surface, thereby reducing the potential for adhesion ware.

• Coating through hardness: 45RC
• Coating surface hardness: >70RC
• The AMC 4301 outperforms AR plate by a factor of four

AMC 4302 NI/AL HARD-METAL COATING

• A hard-metal composite alloy that contains the correct elemental ratio of Ni and Al, which, when sprayed, forms the aluminide
• This coating can be used as a coating by itself or incorporated into a coating system as a base coat
• The product is flexible in that the ratio between the elements can be readily changed

AMC 4303 FE/NI/AL COATING

A product designed primarily for restoration of dimension yet has proven to be a good film former at high temperature, this coating is used for machine element and component repair. The coating's structure is similar to cast steel, with benefits ranging from ease of machining and thermo expansion properties similar to low-alloy steel.

4305 COATING

Arcmelt's proprietary 4305 coating is especially designed for use in the Twin Wire Arc System (TWAS). It is particularly useful in large-scale applications or where a thicker coating is required. Arcmelt 4305 has excellent pitting corrosion-resistance, coupled with improved mechanical properties.

This coating is extremely dense, and can be ground and polished to below 5μin. Surface hardness has exceeded 70RC, while the body of the coating remains ductile 45RC. The coating is excellent for metal-to-metal contact when little or no lubrication is available.