Isaac Nault, PhD
Dec 6, 20211 min
Data collection on cold spray additive manufacturing using Niobium C103 to determine the strength and elongation of each material tested. C-103 Niobium is a complex, medium-strength alloy containing niobium-hafnium-titanium (Nb/Hf/Ti). As a high-performance, heat-resistant metal alloy C-103 Niobium (Nb) is commonly used in aerospace components; the materials must withstand high temperatures for applications such as rocket nozzles, propulsion systems, or engines.
This data was generated by tensile testing of coupons that were cut from a cold sprayed block of C-103 Nb and heat treated. Tensile testing was performed on CSAM C103 at temperatures (°C) ranging from 0°C to 1400°C. The C-103 Niobium coupons were soaked prior to and during tensile testing. The Ultimate Tensile Strength (UTS) is the maximum stress that a material can withstand while being stretched or pulled while Yield Strength (YS) is the maximum stress a material can withstand before permanent deformation. Elongation is a measure of deformation that occurs before a material eventually breaks when subjected to a tensile load. Data points can be seen above in comparison to established Wrought C103 trends.
As seen above, initial results show that cold-sprayed C103 has similar trends for strength compared to Wrought C103 with 88.6% deposition efficiency and 0.58 kg/hr build rate. Elongation of CS C103 remains slightly lower at the highest temperatures compared to Wrought C103.
Contact Isaac Nault, PhD for questions on CSAM of C-103 Nb.
Isaac M. Nault, PhD
Technical Lead, Cold Spray Additive Manufacturing
DEVCOM Army Research Laboratory
FCDD-RLW-MD Weapons and Materials Research Directorate
Manufacturing Science & Technology Branch(MSTB)
Aberdeen Proving Ground, MD
Office: (410) 306-0865