Zinc-induced embrittlement in nickel-base superalloys by simulation and experiment

Richard Otis; Mahesh Waje; Greta Lindwall; Tiffany Jefferson; Jeremy Lange; Zi Kui Liu

doi:10.1080/09500839.2017.1356478

Zinc-induced embrittlement in nickel-base superalloys by simulation and experiment

Richard Otis, Mahesh Waje, Greta Lindwall, Tiffany Jefferson, Jeremy Lange, Zi Kui Liu

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The high cost of Re has driven interest in processes for recovering Re from scrap superalloy parts. In this work thermodynamic modelling is used to study Zn-induced embrittlement of a superalloy and to direct experiments. Treating superalloy powder with Zn vapour reduces the average particle size after milling from approximately (Formula presented.) m to 0.5–10 (Formula presented.) m, vs. (Formula presented.) m for untreated powder. Simulations predict the required treatment time to increase with temperature. Agreement between predictions and experiments suggests that an embrittling liquid forms in less than an hour of Zn vapour treatment between 950–1000 (Formula presented.) C and partial pressures of Zn between 14–34 kPa (2–5 psi).

Original language	English (US)
Pages (from-to)	335-342
Number of pages	8
Journal	Philosophical Magazine Letters
Volume	97
Issue number	9
DOIs	https://doi.org/10.1080/09500839.2017.1356478
State	Published - Sep 2 2017

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

Access to Document

10.1080/09500839.2017.1356478

Cite this

@article{116ca8bbf40a46d98aec7d931446b539,

title = "Zinc-induced embrittlement in nickel-base superalloys by simulation and experiment",

abstract = "The high cost of Re has driven interest in processes for recovering Re from scrap superalloy parts. In this work thermodynamic modelling is used to study Zn-induced embrittlement of a superalloy and to direct experiments. Treating superalloy powder with Zn vapour reduces the average particle size after milling from approximately (Formula presented.) m to 0.5–10 (Formula presented.) m, vs. (Formula presented.) m for untreated powder. Simulations predict the required treatment time to increase with temperature. Agreement between predictions and experiments suggests that an embrittling liquid forms in less than an hour of Zn vapour treatment between 950–1000 (Formula presented.) C and partial pressures of Zn between 14–34 kPa (2–5 psi).",

author = "Richard Otis and Mahesh Waje and Greta Lindwall and Tiffany Jefferson and Jeremy Lange and Liu, {Zi Kui}",

note = "Funding Information: This material is based upon work supported by the Office of Naval Research [contract number N00014-13-P-1004]. Publisher Copyright: {\textcopyright} 2017 Informa UK Limited, trading as Taylor & Francis Group.",

year = "2017",

month = sep,

day = "2",

doi = "10.1080/09500839.2017.1356478",

language = "English (US)",

volume = "97",

pages = "335--342",

journal = "Philosophical Magazine Letters",

issn = "0950-0839",

publisher = "Taylor and Francis Ltd.",

number = "9",

}

TY - JOUR

T1 - Zinc-induced embrittlement in nickel-base superalloys by simulation and experiment

AU - Otis, Richard

AU - Waje, Mahesh

AU - Lindwall, Greta

AU - Jefferson, Tiffany

AU - Lange, Jeremy

AU - Liu, Zi Kui

N1 - Funding Information: This material is based upon work supported by the Office of Naval Research [contract number N00014-13-P-1004]. Publisher Copyright: © 2017 Informa UK Limited, trading as Taylor & Francis Group.

PY - 2017/9/2

Y1 - 2017/9/2

N2 - The high cost of Re has driven interest in processes for recovering Re from scrap superalloy parts. In this work thermodynamic modelling is used to study Zn-induced embrittlement of a superalloy and to direct experiments. Treating superalloy powder with Zn vapour reduces the average particle size after milling from approximately (Formula presented.) m to 0.5–10 (Formula presented.) m, vs. (Formula presented.) m for untreated powder. Simulations predict the required treatment time to increase with temperature. Agreement between predictions and experiments suggests that an embrittling liquid forms in less than an hour of Zn vapour treatment between 950–1000 (Formula presented.) C and partial pressures of Zn between 14–34 kPa (2–5 psi).

AB - The high cost of Re has driven interest in processes for recovering Re from scrap superalloy parts. In this work thermodynamic modelling is used to study Zn-induced embrittlement of a superalloy and to direct experiments. Treating superalloy powder with Zn vapour reduces the average particle size after milling from approximately (Formula presented.) m to 0.5–10 (Formula presented.) m, vs. (Formula presented.) m for untreated powder. Simulations predict the required treatment time to increase with temperature. Agreement between predictions and experiments suggests that an embrittling liquid forms in less than an hour of Zn vapour treatment between 950–1000 (Formula presented.) C and partial pressures of Zn between 14–34 kPa (2–5 psi).

UR - http://www.scopus.com/inward/record.url?scp=85027854056&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85027854056&partnerID=8YFLogxK

U2 - 10.1080/09500839.2017.1356478

DO - 10.1080/09500839.2017.1356478

M3 - Article

AN - SCOPUS:85027854056

SN - 0950-0839

VL - 97

SP - 335

EP - 342

JO - Philosophical Magazine Letters

JF - Philosophical Magazine Letters

IS - 9

ER -

Zinc-induced embrittlement in nickel-base superalloys by simulation and experiment

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this