Precipitation of nanosized DO22 superlattice with high thermal stability in an Ni-Cr-W superalloy

Yang Chen; Rui Hu; Hongchao Kou; Tiebang Zhang; Jinshan Li

doi:10.1016/j.scriptamat.2013.12.013

Precipitation of nanosized DO₂₂ superlattice with high thermal stability in an Ni-Cr-W superalloy

Yang Chen, Rui Hu, Hongchao Kou, Tiebang Zhang, Jinshan Li

材料学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

19 引用（Scopus）

摘要

It is demonstrated for the first time that a nanoscale superlattice with a DO₂₂ structure can precipitate in an Ni-Cr-W alloy by means of a simple ageing treatment at 700 C. The existence of tungsten in the superalloy stabilizes the DO₂₂ superlattices, which are transient metastable phases in Ni-Cr-Mo alloy. Because of the fine, spherical and dispersed precipitates in the Ni-Cr-W matrix, the microhardness of the alloy is improved remarkably.

源语言	英语
页（从-至）	49-52
页数	4
期刊	Scripta Materialia
卷	76
DOI	https://doi.org/10.1016/j.scriptamat.2013.12.013
出版状态	已出版 - 4月 2014

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10.1016/j.scriptamat.2013.12.013

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title = "Precipitation of nanosized DO22 superlattice with high thermal stability in an Ni-Cr-W superalloy",

abstract = "It is demonstrated for the first time that a nanoscale superlattice with a DO22 structure can precipitate in an Ni-Cr-W alloy by means of a simple ageing treatment at 700 C. The existence of tungsten in the superalloy stabilizes the DO22 superlattices, which are transient metastable phases in Ni-Cr-Mo alloy. Because of the fine, spherical and dispersed precipitates in the Ni-Cr-W matrix, the microhardness of the alloy is improved remarkably.",

keywords = "Ageing, DO superlattice, High thermal stability, Ni-Cr-W superalloy",

author = "Yang Chen and Rui Hu and Hongchao Kou and Tiebang Zhang and Jinshan Li",

year = "2014",

month = apr,

doi = "10.1016/j.scriptamat.2013.12.013",

language = "英语",

volume = "76",

pages = "49--52",

journal = "Scripta Materialia",

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T1 - Precipitation of nanosized DO22 superlattice with high thermal stability in an Ni-Cr-W superalloy

AU - Chen, Yang

AU - Hu, Rui

AU - Kou, Hongchao

AU - Zhang, Tiebang

AU - Li, Jinshan

PY - 2014/4

Y1 - 2014/4

N2 - It is demonstrated for the first time that a nanoscale superlattice with a DO22 structure can precipitate in an Ni-Cr-W alloy by means of a simple ageing treatment at 700 C. The existence of tungsten in the superalloy stabilizes the DO22 superlattices, which are transient metastable phases in Ni-Cr-Mo alloy. Because of the fine, spherical and dispersed precipitates in the Ni-Cr-W matrix, the microhardness of the alloy is improved remarkably.

AB - It is demonstrated for the first time that a nanoscale superlattice with a DO22 structure can precipitate in an Ni-Cr-W alloy by means of a simple ageing treatment at 700 C. The existence of tungsten in the superalloy stabilizes the DO22 superlattices, which are transient metastable phases in Ni-Cr-Mo alloy. Because of the fine, spherical and dispersed precipitates in the Ni-Cr-W matrix, the microhardness of the alloy is improved remarkably.

KW - Ageing

KW - DO superlattice

KW - High thermal stability

KW - Ni-Cr-W superalloy

UR - http://www.scopus.com/inward/record.url?scp=84893738691&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2013.12.013

DO - 10.1016/j.scriptamat.2013.12.013

M3 - 文章

AN - SCOPUS:84893738691

SN - 1359-6462

VL - 76

SP - 49

EP - 52

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Precipitation of nanosized DO22 superlattice with high thermal stability in an Ni-Cr-W superalloy

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Precipitation of nanosized DO₂₂ superlattice with high thermal stability in an Ni-Cr-W superalloy