The Strain-Rate and Temperature Dependence of 18Ni(350) Maraging Steel Tensile Properties

[+] Author and Article Information
H. J. Rack

Sandia Laboratories, Albuquerque, N.M.

S. Beitscher

Rockwell Int.-Rocky Flats Div., Golden, Colo.

David Kalish

Bell Telephone Labs., Norcross, Ga.

J. Eng. Mater. Technol. 101(1), 91-97 (Jan 01, 1979) (7 pages) doi:10.1115/1.3443657 History: Received June 20, 1978; Online August 17, 2010


The influence of microstructure, strain rate, and test temperature on the tensile properties of 18Ni(350) maraging steel was examined. The strain-rate and temperature dependence of the yield strength is less than that observed in low-strength carbon steels. The results suggest that the thermally activated flow process involves both the by-passing of a linear barrier, i.e., the disruption associated with a dislocation core, and the by-passing of a localized obstacle, the latter being specific to the microstructure being examined. The tensile ductility of aged 18Ni(350) maraging steel also undergoes a ductile-brittle transition. The extent of this ductility loss depends upon the matrix solute content and the presence of either reverted austenite or a highly dislocated substructure.

Copyright © 1979 by ASME
Your Session has timed out. Please sign back in to continue.






Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In