Originally shared August 17, 2023

This week we’ll be highlighting and sharing another powdered metal-related article written by TAT Technologies’ president, Harb Nayar. Titled Hardfacing and Welding Rods by PM (Published 1977, MPIF, reference 1077-0074), this article covers the process of producing hardfacing, welding, or brazing rods of pre-alloyed powders by a unique powder metal sintering process without a pressing step rather than the casting process dominant at the time of the article’s writing. By reading this article, you will learn about:

  • The direct particle liquid phase sintering process of relatively hard powder particles without any prior compaction.

  • How the final densities are above 95% of theoretical.

  • How this process can produce preforms, thin plates and rods from 1/16" to 1" equivalent diameter.

  • How this is very suitable for many Ni-base and Fe-base alloys with reasonably wide liquidus to solidus temperature ranges.

Overall, this article captures the flexibility of powdered metal process, and the spirit of innovation that makes it such a dynamic player in industrial manufacturing - everything TAT Technologies is trying to encourage today! 

A full PDF copy will be given by request if you contact This email address is being protected from spambots. You need JavaScript enabled to view it.

If you have any questions or comments, please contact me and I’ll be happy to answer.