Presentation
Investigation of the structure - property - processing relationships of 316L stainless steel hypotubing
Materials and Processes for Medical Devices Conference
(2003)
Abstract
The effects of thermomechanical processes on the microstructure and the mechanical properties of 316L stainless steel hypotubing, used for intravascular implants, were studied by employing statistically designed experiments. The heat treatment temperature (720°C to 920°C), the initial cold working of the material (10% to 24%), and the wall thickness of the hypotubings (in the range of 0.06 mm and 0.10 mm) were the variables. The study showed that up to 35% of residual stress can be released, and the ductility of the material can be increased up to 60% by heat treating at 920°C, without any grain growth and chromium carbide precipitation. The wall thickness affected the ductility of the material - thinner hypotubings had lower elongations. Mathematical equations correlating the mechanical properties of the material to the variables were developed.
Disciplines
Publication Date
September, 2003
Location
Anaheim, CA.; United States
Comments
September 8-10, 2003
Citation Information
Mazdak Rooein, Sepehr Fariabi, Guna S Selvaduray and Joe Callol. "Investigation of the structure - property - processing relationships of 316L stainless steel hypotubing" Materials and Processes for Medical Devices Conference (2003) Available at: http://works.bepress.com/guna_selvaduray/123/