SYMPOSIA PAPER Published: 01 January 2003
STP11161S

Comparison of Notch Sensitivity and Stress Corrosion Cracking of a Low-Nickel Stainless Steel to 316LS and 22Cr-13Ni-5Mn Stainless Steels

Source

Recently, low-nickel stainless steels have been developed, in part due to concerns over patient hypersensitivity reactions. These alloys have been investigated and found to provide excellent mechanical and corrosion properties. This study compares the mechanical properties, notch sensitivity, and stress corrosion cracking (SCC) susceptibility of one such alloy, BioDur® 108, to 316LS and 22Cr-13Ni-5Mn stainless steels which have a long successful implant history. BioDur® 108 was found to have a tensile strength, yield strength, and notch tensile strength similar to 22Cr-13Ni-5Mn, and both had higher values of these properties as compared to 316LS. In addition, BioDur® 108 had the largest percentage elongation during tensile testing of the three alloys but lower reduction of area than 316LS. No evidence of SCC mechanisms was revealed in either the test results or fracture analysis on any of the materials tested. With these material properties and its very low nickel content, BioDur® 108 may be a useful alternative for certain medical implant applications.

Author Information

Zardiackas, LD
University of Mississippi Medical Center, School of Dentistry/Biomaterials, Jackson, MS
Roach, M
University of Mississippi Medical Center, School of Dentistry/Biomaterials, Jackson, MS
Williamson, S
University of Mississippi Medical Center, School of Dentistry/Biomaterials, Jackson, MS
Bogan, JA
University of Mississippi Medical Center, School of Dentistry/Biomaterials, Jackson, MS
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Details
Developed by Committee: F04
Pages: 154–167
DOI: 10.1520/STP11161S
ISBN-EB: 978-0-8031-5483-4
ISBN-13: 978-0-8031-3459-1