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WEAR PIPE
TWP68i
TWP68i is a revolutionary new material specifically designed to provide extreme wear and impact resistance. Having the ability to be heat-treatable, meaning it preserves excellent performance before and after standard quench and temper heat treatments.
TWP68i grows extremely hard molybdenum boride particles homogeneously throughout the entire weld bead.
These molybdenum boride particles are harder and smaller than the tungsten carbide hard phase in PTA weld overlays — a characteristic that enhances impact resistance.
TWP68i is particularly suitable for applications where resistance to gouging or high-stress abrasion is required. Coatings of TWP68i pair the toughness required for high impact applications with super wear resistance that rival most other wear-resistant coatings on the market. Its welded microstructure looks similar to tungsten carbide – nickel PTA overlays while simultaneously avoiding the long, needle-like particles known to cause problematic embrittlement in chromium carbide overlays and many nanostructured steel alloys.
KEY PERFORMANCE
CHARACTERISTICS
- Impact resistance: >10,000 20J
- Hard Boride/Carbide Fractions: ~33%
- Excellent Formability
- Double-layer welding of TWP68i is NOT recommended
Applications
TWP68i overlays are suggested for use in any applications where abrasion and impact resistance is required. The revolutionary improvement in impact resistance and toughness will typically result in an extended lifetime over WC PTA and Chromium Carbide coatings.
Impact Test
Low energy high frequency rotary impact test at 8J requires a result of less than 3 grams material loss after 24 minutes to be considered a pass. After 24 minutes the T168i had 0g loss.
Spool size depends on type of wire and size.
In terms of wear resistance, the high density of complex borides and carbides in a martensitic matrix allow it to compete with the wear performance of WC/Ni overlays at a substantially lower price point.
The extremely fine lamellar structure of the complex borides and the spherical morphology of the carbides allow for impact performance 20X that of WC/Ni, and chromium carbide overlays (CCO).
