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Correlation Between Numerical Finite Element Simulation and Experiments for Explosive Cladding of Nickel Base Super Alloy on Hot Tool Steel
Author(s) -
Khanzadeh M. R.,
Akbari Mousavi S. A. A.,
Amadeh A.,
Liaghat G. H.
Publication year - 2012
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.2011.00828.x
Subject(s) - materials science , explosion welding , explosive material , inconel , finite element method , cladding (metalworking) , constitutive equation , welding , computer simulation , composite material , alloy , structural engineering , metallurgy , mechanics , engineering , arc welding , filler metal , chemistry , physics , organic chemistry
Experimental tests were carried out to explosively clad solution‐annealed Inconel 718 super alloy on quench‐tempered AISI H13 hot tool steel. The tests were performed using various stand‐off distances and explosive–to‐flyer plate mass ratios. Various interface geometries were obtained from these experiments. All the experiments were simulated using ABAQUS version 6.9 finite element software. The Williamsburg equation of state and Johnson–Cook constitutive equation with its corresponding failure equation were used to model the behaviour of explosive and plates, respectively. The experimental results showed that the shape of interface fell roughly into three classes, wavy or wavy with some vortex shedding or smooth‐wavy. Various interface morphologies were achieved by changing the stand‐off distances and explosive–to‐flyer plate mass ratios because of change of impact velocity and dynamic collision angle. Numerical results showed that high localised plastic deformation was produced at the bond interface. Equivalent plastic strain and shear stress could be criteria for transition of interface morphology. Welding window of alloys was also developed.