TY - GEN
T1 - Effects of residual surface stress and tempering on the fatigue behavior of Ancorsteel 4300
AU - Williams, J. J.
AU - Deng, X.
AU - Chawla, Nikhilesh
AU - Lindsley, B.
AU - King, P.
AU - Narasimhan, K. S.
PY - 2006
Y1 - 2006
N2 - In this study, the microstructure, residual stress and fatigue behavior of Hoeganaes' Ancorsteel 4300 sintered steel were characterized. Samples were tempered at either 205°C or 315°C and then machined by conventional grinding. The effects of residual surface stress (measured by XRD) on the fatigue behavior were studied by either application of a stress-relieving heat-treatment after machining or by polishing away the machined surface. Based on this study, samples tempered at 315°C had slightly higher fatigue strengths than samples tempered at 205°C. Although significant compressive stresses were induced by machining on the surface of samples, these residual stresses did not affect the fatigue behavior. Rather, the fatigue behavior was controlled by porosity inherent to these sintered steels.
AB - In this study, the microstructure, residual stress and fatigue behavior of Hoeganaes' Ancorsteel 4300 sintered steel were characterized. Samples were tempered at either 205°C or 315°C and then machined by conventional grinding. The effects of residual surface stress (measured by XRD) on the fatigue behavior were studied by either application of a stress-relieving heat-treatment after machining or by polishing away the machined surface. Based on this study, samples tempered at 315°C had slightly higher fatigue strengths than samples tempered at 205°C. Although significant compressive stresses were induced by machining on the surface of samples, these residual stresses did not affect the fatigue behavior. Rather, the fatigue behavior was controlled by porosity inherent to these sintered steels.
UR - http://www.scopus.com/inward/record.url?scp=84883416828&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84883416828&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84883416828
SN - 9780976205760
T3 - Advances in Powder Metallurgy and Particulate Materials - 2006, Proceedings of the 2006 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2006
SP - 101
EP - 109
BT - Advances in Powder Metallurgy and Particulate Materials - 2006, Proceedings of the 2006 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2006
T2 - 2006 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2006
Y2 - 18 June 2006 through 21 June 2006
ER -