Effect of HIP temperature and post-HIP heat treatments on coincidence site lattices and twin boundaries in IN718

M. Aristizabal; J. Cortes; M. H. Loretto; M. M. Attallah; I. Iturriza

Effect of HIP temperature and post-HIP heat treatments on coincidence site lattices and twin boundaries in IN718

M. Aristizabal, J. Cortes, M. H. Loretto, M. M. Attallah, I. Iturriza

Metallurgy and Materials

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Electron back scattered diffraction has been used to determine the effect of HIPping (Hot Isostatically Pressing) at different temperatures on grain size and on the fraction of Σ3 twin boundaries in as-HIPped IN718 powder and in HIPped samples which have been subsequently heat treated. Tensile tests have been carried out on these samples. It has been found that the highest fraction of Σ3 boundaries was present in the coarser grained samples and this increase in the fraction of Σ3 boundaries is associated with higher ductility at both room temperature and at 650 °C. Transmission electron microscopy (TEM) has been used to assess changes in precipitate sizes caused by these heat treatments, which also influence tensile properties.

Original language	English
Title of host publication	World PM 2016 Congress and Exhibition
Publisher	European Powder Metallurgy Association (EPMA)
ISBN (Electronic)	9781899072484
Publication status	Published - 1 Oct 2016
Event	World Powder Metallurgy 2016 Congress and Exhibition, World PM 2016 - Hamburg, Germany Duration: 9 Oct 2016 → 13 Oct 2016

Conference

Conference	World Powder Metallurgy 2016 Congress and Exhibition, World PM 2016
Country/Territory	Germany
City	Hamburg
Period	9/10/16 → 13/10/16

ASJC Scopus subject areas

Mechanical Engineering
Metals and Alloys

Cite this

@inproceedings{5bdf19d564f74610a6bf10d8e25e65fe,

title = "Effect of HIP temperature and post-HIP heat treatments on coincidence site lattices and twin boundaries in IN718",

abstract = "Electron back scattered diffraction has been used to determine the effect of HIPping (Hot Isostatically Pressing) at different temperatures on grain size and on the fraction of Σ3 twin boundaries in as-HIPped IN718 powder and in HIPped samples which have been subsequently heat treated. Tensile tests have been carried out on these samples. It has been found that the highest fraction of Σ3 boundaries was present in the coarser grained samples and this increase in the fraction of Σ3 boundaries is associated with higher ductility at both room temperature and at 650 °C. Transmission electron microscopy (TEM) has been used to assess changes in precipitate sizes caused by these heat treatments, which also influence tensile properties.",

author = "M. Aristizabal and J. Cortes and Loretto, {M. H.} and Attallah, {M. M.} and I. Iturriza",

year = "2016",

month = oct,

day = "1",

language = "English",

booktitle = "World PM 2016 Congress and Exhibition",

publisher = "European Powder Metallurgy Association (EPMA)",

note = "World Powder Metallurgy 2016 Congress and Exhibition, World PM 2016 ; Conference date: 09-10-2016 Through 13-10-2016",

}

Aristizabal, M, Cortes, J, Loretto, MH, Attallah, MM & Iturriza, I 2016, Effect of HIP temperature and post-HIP heat treatments on coincidence site lattices and twin boundaries in IN718. in World PM 2016 Congress and Exhibition. European Powder Metallurgy Association (EPMA), World Powder Metallurgy 2016 Congress and Exhibition, World PM 2016, Hamburg, Germany, 9/10/16.

TY - GEN

T1 - Effect of HIP temperature and post-HIP heat treatments on coincidence site lattices and twin boundaries in IN718

AU - Aristizabal, M.

AU - Cortes, J.

AU - Loretto, M. H.

AU - Attallah, M. M.

AU - Iturriza, I.

PY - 2016/10/1

Y1 - 2016/10/1

N2 - Electron back scattered diffraction has been used to determine the effect of HIPping (Hot Isostatically Pressing) at different temperatures on grain size and on the fraction of Σ3 twin boundaries in as-HIPped IN718 powder and in HIPped samples which have been subsequently heat treated. Tensile tests have been carried out on these samples. It has been found that the highest fraction of Σ3 boundaries was present in the coarser grained samples and this increase in the fraction of Σ3 boundaries is associated with higher ductility at both room temperature and at 650 °C. Transmission electron microscopy (TEM) has been used to assess changes in precipitate sizes caused by these heat treatments, which also influence tensile properties.

AB - Electron back scattered diffraction has been used to determine the effect of HIPping (Hot Isostatically Pressing) at different temperatures on grain size and on the fraction of Σ3 twin boundaries in as-HIPped IN718 powder and in HIPped samples which have been subsequently heat treated. Tensile tests have been carried out on these samples. It has been found that the highest fraction of Σ3 boundaries was present in the coarser grained samples and this increase in the fraction of Σ3 boundaries is associated with higher ductility at both room temperature and at 650 °C. Transmission electron microscopy (TEM) has been used to assess changes in precipitate sizes caused by these heat treatments, which also influence tensile properties.

UR - http://www.scopus.com/inward/record.url?scp=85035360578&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:85035360578

BT - World PM 2016 Congress and Exhibition

PB - European Powder Metallurgy Association (EPMA)

T2 - World Powder Metallurgy 2016 Congress and Exhibition, World PM 2016

Y2 - 9 October 2016 through 13 October 2016

ER -

Effect of HIP temperature and post-HIP heat treatments on coincidence site lattices and twin boundaries in IN718

Abstract

Conference

ASJC Scopus subject areas

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