Slip and fracture behavior of δ-Ni3Nb plates in a polycrystalline nickel-based superalloy during fatigue

Yun Wu; Shuangming Li; Maodong Kang; Yunting Li; Yahui Liu; Haiyan Gao; Baode Sun; Jun Wang

doi:10.1016/j.scriptamat.2019.06.013

Slip and fracture behavior of δ-Ni₃Nb plates in a polycrystalline nickel-based superalloy during fatigue

Yun Wu
, Shuangming Li
, Maodong Kang
, Yunting Li
, Yahui Liu
, Haiyan Gao
, Baode Sun
, Jun Wang

School of Materials Sience and Engineering

Shanghai Jiao Tong University

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

23 Scopus citations

Abstract

The fatigue deformation behavior of δ-Ni₃Nb (D0_a intermetallic phase in nickel-based superalloy) was analyzed in detail to determine its fracture characteristics and possible slip systems. Strong arrangement-dependence (i.e. arrangement direction of plate length relative to loading direction) deformation characteristics were observed. When δ plates were arranged not paralleling to the loading direction, they exhibited certain degree of fatigue resistance. Slip traces were found in the non-parallel δ plates after some fatigue cycles. By analyzing the traces and habit plane of δ, the possible operative slip systems were confirmed to be (010)_δ[100]_δ and (010)_δ[102]_δ.

Original language	English
Pages (from-to)	36-41
Number of pages	6
Journal	Scripta Materialia
Volume	171
DOIs	https://doi.org/10.1016/j.scriptamat.2019.06.013
State	Published - Oct 2019

Keywords

Crystal structure
Fatigue
Fracture
Slip
δ-NiNb

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10.1016/j.scriptamat.2019.06.013

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title = "Slip and fracture behavior of δ-Ni3Nb plates in a polycrystalline nickel-based superalloy during fatigue",

abstract = "The fatigue deformation behavior of δ-Ni3Nb (D0a intermetallic phase in nickel-based superalloy) was analyzed in detail to determine its fracture characteristics and possible slip systems. Strong arrangement-dependence (i.e. arrangement direction of plate length relative to loading direction) deformation characteristics were observed. When δ plates were arranged not paralleling to the loading direction, they exhibited certain degree of fatigue resistance. Slip traces were found in the non-parallel δ plates after some fatigue cycles. By analyzing the traces and habit plane of δ, the possible operative slip systems were confirmed to be (010)δ[100]δ and (010)δ[102]δ.",

keywords = "Crystal structure, Fatigue, Fracture, Slip, δ-NiNb",

author = "Yun Wu and Shuangming Li and Maodong Kang and Yunting Li and Yahui Liu and Haiyan Gao and Baode Sun and Jun Wang",

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doi = "10.1016/j.scriptamat.2019.06.013",

language = "英语",

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T1 - Slip and fracture behavior of δ-Ni3Nb plates in a polycrystalline nickel-based superalloy during fatigue

AU - Wu, Yun

AU - Li, Shuangming

AU - Kang, Maodong

AU - Li, Yunting

AU - Liu, Yahui

AU - Gao, Haiyan

AU - Sun, Baode

AU - Wang, Jun

PY - 2019/10

Y1 - 2019/10

N2 - The fatigue deformation behavior of δ-Ni3Nb (D0a intermetallic phase in nickel-based superalloy) was analyzed in detail to determine its fracture characteristics and possible slip systems. Strong arrangement-dependence (i.e. arrangement direction of plate length relative to loading direction) deformation characteristics were observed. When δ plates were arranged not paralleling to the loading direction, they exhibited certain degree of fatigue resistance. Slip traces were found in the non-parallel δ plates after some fatigue cycles. By analyzing the traces and habit plane of δ, the possible operative slip systems were confirmed to be (010)δ[100]δ and (010)δ[102]δ.

AB - The fatigue deformation behavior of δ-Ni3Nb (D0a intermetallic phase in nickel-based superalloy) was analyzed in detail to determine its fracture characteristics and possible slip systems. Strong arrangement-dependence (i.e. arrangement direction of plate length relative to loading direction) deformation characteristics were observed. When δ plates were arranged not paralleling to the loading direction, they exhibited certain degree of fatigue resistance. Slip traces were found in the non-parallel δ plates after some fatigue cycles. By analyzing the traces and habit plane of δ, the possible operative slip systems were confirmed to be (010)δ[100]δ and (010)δ[102]δ.

KW - Crystal structure

KW - Fatigue

KW - Fracture

KW - Slip

KW - δ-NiNb

UR - https://www.scopus.com/pages/publications/85067889040

U2 - 10.1016/j.scriptamat.2019.06.013

DO - 10.1016/j.scriptamat.2019.06.013

M3 - 文章

AN - SCOPUS:85067889040

SN - 1359-6462

VL - 171

SP - 36

EP - 41

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Slip and fracture behavior of δ-Ni₃Nb plates in a polycrystalline nickel-based superalloy during fatigue

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Keywords

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