Simulation of yield strength in Allvac® 718PlusTM

Mohammad Reza Ahmadi*, Lawrence Whitmore, Erwin Povoden-Karadeniz, Martin Stockinger, Ahmad Falahati, Ernst Kozeschnik

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

In the present study, we describe a comprehensive and consistent physical model for the yield strength change in Allvac® 718PlusTM caused by precipitation strengthening. The model incorporates the effect of different shearing and non-shearing mechanisms with respect to atomic continuity between the lattices of precipitates and matrix. We demonstrate that coherency and anti-phase boundary effects are the major strengthening mechanisms in this alloy. The final yield strength of Allvac® 718PlusTM during aging is investigated using the thermo-kinetic software MatCalc. The calculated final yield strength evolution is consistent with experimental results
Original languageEnglish
Pages (from-to)7-12
JournalAdvanced Materials Research
Volume922
DOIs
Publication statusPublished - 2014

Fields of Expertise

  • Advanced Materials Science

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