A workability criterion for the transformed adiabatic shear band phenomena during cold heading of 1038 steel

A. Sabih, A. M. Elwazri, J. A. Nemes, S. Yue

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

A criterion for predicting the workability limits for internal brittle failure was developed for cold heading of 1038 steel. The criterion considers internal defects caused by microstructural changes generated by adiabatic shear. This transformation is termed the transformed adiabatic shear band (TASB) phenomena. The defect that develops is the formation of brittle martensite as a result of the temperature rise and fall inside the adiabatic shear band (ASB). In this work, the material is considered to have a TASB defect when the temperature inside the ASB exceeds the phase transformation temperature (A C3). The empirical formulas provided by Andrews[1] were used to determine transformation temperatures. Microhardness testing and etching with 2% Nital and Le Pera etchants were performed on the sectioned specimens to locate and study the TASB. In order to simulate the cold heading process, a drop weight compression test was used and modeled with finite-element analysis (implemented within ABAQUS/Explicit).

Original languageEnglish (US)
Pages (from-to)97-105
Number of pages9
JournalJournal of Failure Analysis and Prevention
Volume6
Issue number4
DOIs
StatePublished - 2006

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Safety, Risk, Reliability and Quality
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'A workability criterion for the transformed adiabatic shear band phenomena during cold heading of 1038 steel'. Together they form a unique fingerprint.

  • Cite this