
Accession Number : AD0696674
Title : SHEAR CRACK PROPAGATION IN HY80, HY130, AND 18 Ni (180) MARAGING STEELS UNDER CYCLIC BIAXIAL LOADING,
Corporate Author : SYRACUSE UNIV N Y METALLURGICAL RESEARCH LABS
Personal Author(s) : Liu,H. W. ; Lal,Dhirendra Narain
Report Date : SEP 1969
Pagination or Media Count : 62
Abstract : The lateral shear crack propagation under cyclic biaxial loading in HY80. Hy130 and 18 Ni (180) maraging steels was investigated. At a given ratio of applied shear stress and the shear yield strength of the material, HY80 steel has the highest resistance to shear crack propagation. At a given stress range, HY130 steel has a slightly higher resistance to shear crack propagation. Shear deformation ahead of crack tip and along the crack line and crack sliding displacement, CSD, were measured using moire method. The shear deformation is a power function of the distance from the crack tip. The shear crack propagation rate is proportional linearly to the shear deformation at a small distance from the crack tip and proportional to the second power of crack sliding displacement. (Author)
Descriptors : (*STEEL, *CRACK PROPAGATION), LOADS(FORCES), MARAGING STEELS, NICKEL ALLOYS, DEFORMATION
Subject Categories : Metallurgy and Metallography
Mechanics
Distribution Statement : APPROVED FOR PUBLIC RELEASE