|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Phase Transformations and Microstructural Evolution
||Effect of Time and Temperature on Microstructural Evolution for Improved Braze Joint Strength in Oil and Gas Drill Bits
||Gagan Saini, William Atkins
|On-Site Speaker (Planned)
Methods for securing thermally stable polycrystalline (TSP) hard material to a substrate using active metal brazing have been investigated for use in drill bits and other downhole tools, with applications in the oil and gas industry. The importance of time and temperature during the brazing process is revealed by a strong correlation of microstructure to braze joint strength. The optimization of key parameters allows one to achieve the ideal microstructure required for maximum shear strength for a particular braze alloy. One can exploit these process parameters to balance between the dispersion of brittle intermetallic phases within the ductile matrix and the thickness of the carbide layer between the braze alloy and TSP interface. The study also presents field data from these brazed samples used in drill bits for oil and gas drilling applications.
||Planned: A print-only volume