A Review on Damage Mechanisms, Models and Calibration Methods under Various Deformation Conditions

By J. Lin, Y. Liu, T. Dean. 2005

156 citations recorded by the source corpus.

The development of microdamage under the deformation conditions of high temperature creep, cold metal forming, superplastic forming, and hot metal forming has been reviewed and discussed, and typical constitutive equations developed to model the individual damage mechanisms are summarized. Based on the microstructural analysis of the key damage features for metallic materials under a wide range of deformation conditions, a set of schematic diagrams is designed to illustrate the major types of damage mechanisms. This helps researchers and engineers to understand the major cause of failure of materials under different deformation conditions and to select simple and appropriate mechanism-based damage equations to predict the damage evolution. Further discussions are carried out on the dominant damage mechanisms in hot metal forming conditions and it is concluded that the dominant damage mechanism can be ‘grain boundary (creep-type) damage’ or ‘plasticity-induced (ductile) damage’ depending on the material microstructure and deformation rate. In the case of grain boundary damage in hot forming, the shape of microdefects is different from those in high temperature creep and superplastic forming although all of those result in intergranular failure of materials. Furthermore, damage calibration techniques for different conditions of plastic deformation are summarized and discussed.

Subfields: Materials Chemistry, Mechanical Engineering, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/365cdf3012ca3497516c708596c09e1f7e27026e

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Materials Chemistry

In Mechanical Engineering

In Mechanics of Materials

Citations in the corpus

A multiaxial creep-damage model for creep crack growth considering cavity growth and microcrack interaction (2014, background): “There are also plenty of mechanisms by which cavities may grow [18,42,43].”
Overview of aluminum alloy mechanical properties during and after fires (2015, background): “Damage manifests itself during elevated temperature exposure as large plastic (creep) deformation, grain elongation, dynamic dislocation recovery, precipitate cracking, and cavity formation (Leckie and Hayhurst 1974; Lin et al. 2005).”