Thermoplastic shear and fracture of steel during high-velocity sliding


Journal Article

A steel rail, severely gouged during a rocket-sled test, was the focus of an investigation of the microstructural changes which occur during high-velocity, sliding contact. Metallographic analysis of the damaged rail indicated that the mechanism of gouging probably was a crude machining process in which the sled shoe played the role of a tool. Cracks in bands of martensite and severely distorted pearlite regions were the principal microscopic features of the subsurface damage; the overall configuration of the pattern of cracks and martensite bands suggests that they formed as a result of catastrophic thermoplastic shear. © 1973.

Full Text

Cited Authors

  • Gerstle, FP; Follansbee, PS; Pearsall, GW; Shepard, ML

Published Date

  • January 1, 1973

Published In

Volume / Issue

  • 24 / 1

Start / End Page

  • 97 - 106

International Standard Serial Number (ISSN)

  • 0043-1648

Digital Object Identifier (DOI)

  • 10.1016/0043-1648(73)90206-8

Citation Source

  • Scopus