TY - GEN
T1 - Shear localization in dynamic deformation of different steels
AU - Lee, Woei Shyan
AU - Liu, Chen Yang
AU - Chen, Tao Hsing
N1 - Funding Information:
The current authors gratefully acknowledge the financial support provided to this study by the National Science Council (NSC) of Taiwan under Grant No. NSC 94-2212-E-006-038.
Publisher Copyright:
© METAL 2008.
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85090587600&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85090587600&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85090587600
T3 - 17th International Metallurgical and Materials Conference, METAL 2008 - Proceedings
BT - 17th International Metallurgical and Materials Conference, METAL 2008 - Proceedings
PB - TANGER spol. s r.o.
T2 - 17th International Metallurgical and Materials Conference, METAL 2008
Y2 - 13 May 2008 through 15 May 2008
ER -