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Ratcheting properties of steel 45 and 42CrMo under high cyclic stress

  • School of Mechatronics Engineering, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Disposable mechanical elements are widely used in many fields such as aerospace and military industries. It is known for their extremely short work time which is quite different from general mechanical elements. The stress level of disposable mechanical elements is much higher than general mechanical elements. In this situation, the traditional fatigue fracture failure will be replaced by fatigue elastic failure used in the design of disposable mechanical elements. The fatigue elastic failure is closely related to the ratcheting properties of materials. Therefore, this paper focuses on the ratcheting properties of typical cyclic softening materials steel 45 and 42 CrMo. The fatigue elastic failure phenomenen of these two materials are shown through the stress control tests.

Original languageEnglish
Title of host publicationProgress in Manufacturing Automation Technology and Application
PublisherTrans Tech Publications Ltd
Pages52-55
Number of pages4
ISBN (Print)9783037858271
DOIs
StatePublished - 2014
Externally publishedYes

Publication series

NameKey Engineering Materials
Volume579-580
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Keywords

  • Cyclic softening materials
  • Fatigue
  • Ratcheting failure
  • Stress controlled tests

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