Journal ArticleDOI
Use of Simple Models to Estimate Effect of Density on Fracture Behaviour of Sintered Steel
N. A. Fleck,R. A. Smith +1 more
Reads0
Chats0
TLDR
In this paper, two material models were developed to estimate the effect of density on the static and cyclic fracture behavior of a sintered steel, based on the known micromechanisms of failure for each type of loading.Abstract:
Two material models are developed to estimate the effect of density on the static and cyclic fracture behaviour of a sintered steel. The models are based on the known micromechanisms of failure for each type of loading. Theoretical predictions are compared with previous experimental results taken from a companion paper (preceding). The two models successfully account for the variation of yield stress, ultimate tensile stress, and fracture toughness with density. They prove less successful in predicting the effect of density on fatigue crack propagation behaviour. PM/0198read more
Citations
More filters
Journal ArticleDOI
The influence of porosity on the deformation and fracture of alloys
TL;DR: The influence of porosity on the deformation and fracture behavior of two alloys, powder-fabricated Ti and Ti-6Al-4V, with differing levels of matrix strain hardening has been examined both experimentally and analytically.
Journal ArticleDOI
Toughness of aluminium alloy foams
TL;DR: In this paper, the fracture behavior of closed cell aluminium-based foams (trade-name “Alulight”) is characterized for the compositions Al−Mg1−Si0.6 and Al-Mg 1−Si10 (wt%), and for a relative density in the range 0.1−0.4.
Journal ArticleDOI
Prediction of bulk tensile behavior of dual phase stainless steels using constituent behavior from micropillar compression experiments
TL;DR: In this paper, the authors used focused ion beam (FIB) milling of dual phase precipitation hardened powder metallurgy (PM) stainless steels to obtain the constitutive behavior of microscopic phases and constituents.
Journal ArticleDOI
Long fatigue crack propagation behavior of laser powder bed-fused inconel 625 with intentionally-seeded porosity
TL;DR: Inconel 625 coupons were manufactured via laser powder bed fusion with different levels of intentionally-seeded porosity (up to 2.7%). The processing-induced porosities, morphologies and distributions were measured via Archimedes method and computed tomography as mentioned in this paper.
Journal ArticleDOI
Effect of porosity and tension-compression asymmetry on the Bauschinger effect in porous sintered steels
TL;DR: In this article, the Bauschinger effect in Fe 0.85Mo 2Ni powder metallurgy (PM) steel was investigated for different porosities and as a function of loading sequence.
References
Related Papers (5)
Effect of Density on Tensile Strength, Fracture Toughness, and Fatigue Crack Propagation Behaviour of Sintered Steel
Norman A. Fleck,R.A. Smith +1 more