TY - GEN
T1 - A workability criterion for the transformed adiabatic shear band phenomena during cold heading of 1038 steel
AU - Sabih, A.
AU - Elwazri, A. M.
AU - Nemes, J. A.
AU - Yue, S.
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2005
Y1 - 2005
N2 - 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 the transformed adiabatic shear band (TASB) phenomena. The defect that develops is the formation of brittle martensite as a result of phase transformation due to the temperature rise 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 (AC3). The empirical formulas provided by Andrews [1] were used to determine transformation temperatures. In addition, 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 along with finite element analysis (implemented within ABAQUS/Explicit).
AB - 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 the transformed adiabatic shear band (TASB) phenomena. The defect that develops is the formation of brittle martensite as a result of phase transformation due to the temperature rise 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 (AC3). The empirical formulas provided by Andrews [1] were used to determine transformation temperatures. In addition, 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 along with finite element analysis (implemented within ABAQUS/Explicit).
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M3 - Conference contribution
AN - SCOPUS:33845534734
SN - 0873396456
SN - 9780873396455
T3 - Materials Science and Technology
SP - 139
EP - 150
BT - Materials Science and Technology 2005 - Proceedings of the Conference
T2 - Materials Science and Technology 2005 Conference
Y2 - 25 September 2005 through 28 September 2005
ER -