Mondal, D.P.Patel, M.Jain, H.Jha, A.K.Das, S.Dasgupta, R.2026-02-052015Materials Science and Engineering: A, 2015, 625, , pp. 331-3429215093https://doi.org/10.1016/j.msea.2014.12.001https://idr.nitk.ac.in/handle/123456789/26339Titanium foams of varying amount of porosities have been made using acrowax bits as a space holder through powder metallurgy route. Two types of Ti-particles were used: (i) angular and (ii) spherical in order to see the effect of particle shape on microstructure and deformation behavior. The compressive deformation behavior of Ti-foams with varying porosities and type of particles are studied under different strain rates. It is observed that the microstructural characteristics of Ti-foam varied marginally with the shape of Ti-particles. But the shape of particles influenced reasonably the deformation responses of Ti-foam. The plateau stress, modulus and energy absorption follow power law with relative density irrespective of shape of Ti-particles. All these parameters in Ti-foams are almost invariant to the strain rate. The empirical constants associated with different empirically developed power law relations are different for different shape of Ti-particles. © 2014 Elsevier B.V.DeformationEnergy absorptionMicrostructurePorosityPowder metallurgyCompressive deformationsDeformation responseOpen cell ti-foamOpen-cellParticle shapePlateau stressRelative densitySpace holdersStrain-ratesTi particlesStrain rate