Shear localization in dynamic deformation of different steels

Woei Shyan Lee, Chen Yang Liu, Tao Hsing Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The adiabatic shearing behavior of S15C low carbon steel, S50C medium carbon steel, and SKS 93 tool steel with a high carbon and low alloy content (abbreviated to high carbon steel hereafter) is examined using a compressive-type split-Hopkinson pressure bar (SHPB) at strain rates ranging from (5~20)×104 s-1. Metallographic observations of the sheared specimens suggest that the shear flow stress and the hardness and width of the shear band depend strongly on the carbon content and strain rate. The formation of the deformed and martensitic transformed shear bands is a function of the carbon content and the shear load. The fracture surface of the low carbon steel exhibits a dimple-like structure. However, the fracture surfaces of the medium and high carbon steels exhibit both a dimple-like structure and knobby features. The formation of the knobby features is attributed to an increased carbon content and a higher strain rate.

Original languageEnglish
Title of host publication17th International Metallurgical and Materials Conference, METAL 2008 - Proceedings
PublisherTANGER spol. s r.o.
ISBN (Electronic)9788025419878
Publication statusPublished - 2008
Event17th International Metallurgical and Materials Conference, METAL 2008 - Hradec nad Moravici, Czech Republic
Duration: 2008 May 132008 May 15

Publication series

Name17th International Metallurgical and Materials Conference, METAL 2008 - Proceedings

Conference

Conference17th International Metallurgical and Materials Conference, METAL 2008
CountryCzech Republic
CityHradec nad Moravici
Period08-05-1308-05-15

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Metals and Alloys
  • Condensed Matter Physics

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