Assessment of dynamic softening mechanisms in Allvac® 718Plus™ by EBSD analysis

Stefan Mitsche; Christof Sommitsch; Daniel Huber; Martin Stockinger; Peter Poelt

doi:10.1016/j.msea.2011.01.044

Assessment of dynamic softening mechanisms in Allvac^® 718Plus™ by EBSD analysis

Stefan Mitsche^*, Christof Sommitsch, Daniel Huber, Martin Stockinger, Peter Poelt

^*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in einer Fachzeitschrift › Artikel › Begutachtung

Abstract

The nickel-based superalloy Allvac^® 718Plus™ is a future candidate for turbine disc applications, as this new material combines the formability and cost advantages of Alloy 718 with the higher temperature capability of Waspaloy. Due to the strong influence of the microstructure on the final mechanical properties, a fundamental knowledge of the dynamic recrystallization mechanism of Allvac^® 718Plus™ is of great importance in order to develop precise microstructure evolution models for this material. Compression tests were performed at temperatures of 900°C to 1050°C and strain rates between 0.1s^-1 and 10s^-1. The microstructures obtained were analyzed by electron backscatter diffraction (EBSD) to evaluate the influence of the different hot forming parameters on the dynamic softening processes of Allvac^® 718Plus™.

Originalsprache	englisch
Seiten (von - bis)	3754-3760
Seitenumfang	7
Fachzeitschrift	Materials Science and Engineering A
Jahrgang	528
Ausgabenummer	10-11
DOIs	https://doi.org/10.1016/j.msea.2011.01.044
Publikationsstatus	Veröffentlicht - 25 Apr. 2011

ASJC Scopus subject areas

Allgemeine Materialwissenschaften
Physik der kondensierten Materie
Werkstoffmechanik
Maschinenbau

Zugriff auf Dokument

10.1016/j.msea.2011.01.044

Andere Dateien und Links

http://www.scopus.com/inward/record.url?scp=79952283257&partnerID=8YFLogxK

Dieses zitieren

@article{4d14a2491f874519a9c28ebffb0936a8,

title = "Assessment of dynamic softening mechanisms in Allvac{\textregistered} 718Plus{\texttrademark} by EBSD analysis",

abstract = "The nickel-based superalloy Allvac{\textregistered} 718Plus{\texttrademark} is a future candidate for turbine disc applications, as this new material combines the formability and cost advantages of Alloy 718 with the higher temperature capability of Waspaloy. Due to the strong influence of the microstructure on the final mechanical properties, a fundamental knowledge of the dynamic recrystallization mechanism of Allvac{\textregistered} 718Plus{\texttrademark} is of great importance in order to develop precise microstructure evolution models for this material. Compression tests were performed at temperatures of 900°C to 1050°C and strain rates between 0.1s-1 and 10s-1. The microstructures obtained were analyzed by electron backscatter diffraction (EBSD) to evaluate the influence of the different hot forming parameters on the dynamic softening processes of Allvac{\textregistered} 718Plus{\texttrademark}.",

keywords = "Dynamic recrystallization, EBSD, Recrystallization mechanism, Superalloy 718Plus",

author = "Stefan Mitsche and Christof Sommitsch and Daniel Huber and Martin Stockinger and Peter Poelt",

year = "2011",

month = apr,

day = "25",

doi = "10.1016/j.msea.2011.01.044",

language = "English",

volume = "528",

pages = "3754--3760",

journal = "Materials Science and Engineering A ",

issn = "0921-5093",

publisher = "Elsevier B.V.",

number = "10-11",

}

TY - JOUR

T1 - Assessment of dynamic softening mechanisms in Allvac® 718Plus™ by EBSD analysis

AU - Mitsche, Stefan

AU - Sommitsch, Christof

AU - Huber, Daniel

AU - Stockinger, Martin

AU - Poelt, Peter

PY - 2011/4/25

Y1 - 2011/4/25

N2 - The nickel-based superalloy Allvac® 718Plus™ is a future candidate for turbine disc applications, as this new material combines the formability and cost advantages of Alloy 718 with the higher temperature capability of Waspaloy. Due to the strong influence of the microstructure on the final mechanical properties, a fundamental knowledge of the dynamic recrystallization mechanism of Allvac® 718Plus™ is of great importance in order to develop precise microstructure evolution models for this material. Compression tests were performed at temperatures of 900°C to 1050°C and strain rates between 0.1s-1 and 10s-1. The microstructures obtained were analyzed by electron backscatter diffraction (EBSD) to evaluate the influence of the different hot forming parameters on the dynamic softening processes of Allvac® 718Plus™.

AB - The nickel-based superalloy Allvac® 718Plus™ is a future candidate for turbine disc applications, as this new material combines the formability and cost advantages of Alloy 718 with the higher temperature capability of Waspaloy. Due to the strong influence of the microstructure on the final mechanical properties, a fundamental knowledge of the dynamic recrystallization mechanism of Allvac® 718Plus™ is of great importance in order to develop precise microstructure evolution models for this material. Compression tests were performed at temperatures of 900°C to 1050°C and strain rates between 0.1s-1 and 10s-1. The microstructures obtained were analyzed by electron backscatter diffraction (EBSD) to evaluate the influence of the different hot forming parameters on the dynamic softening processes of Allvac® 718Plus™.

KW - Dynamic recrystallization

KW - EBSD

KW - Recrystallization mechanism

KW - Superalloy 718Plus

UR - http://www.scopus.com/inward/record.url?scp=79952283257&partnerID=8YFLogxK

U2 - 10.1016/j.msea.2011.01.044

DO - 10.1016/j.msea.2011.01.044

M3 - Article

AN - SCOPUS:79952283257

SN - 0921-5093

VL - 528

SP - 3754

EP - 3760

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

IS - 10-11

ER -