Improving creep resistance of nickel-based superalloy Inconel 718 by tailoring gamma double prime variants

被引：81

作者：

Zhang, Hongjun ^{[1
]}

Li, Chong ^{[1
]}

Guo, Qianying ^{[1
]}

Ma, Zongqing ^{[1
]}

Li, Huijun ^{[1
]}

Liu, Yongchang ^{[1
]}

机构：

[1] Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Sch Mat Sci & Engn, Tianjin 300354, Peoples R China

来源：

SCRIPTA MATERIALIA | 2019年 / 164卷

基金：

中国国家自然科学基金;

关键词：

Cold working; Creep; Nickel alloys; Precipitation; Gamma double prime phase; PRECIPITATION; BEHAVIOR; TENSILE; ALLOY; MORPHOLOGY; FRACTURE; PHASES; DELTA;

D O I：

10.1016/j.scriptamat.2019.01.041

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Inconel 718 is a widely used nickel-based superalloy in aircraft engines during the past decades, whose elevated temperature strength derives from disc-shaped gamma double prime (gamma '') in three perpendicular variants plus less spherical gamma prime (gamma') precipitates. In present work, we observed an abnormal gamma '' variant with tailored orientation and shape in directly aged cold-rolled Inconel 718, creep tests proved its substantial benefits in improving creep resistance at 650 degrees C superior to commonly perpendicular gamma '' variants. The results can provide new insights for processing optimization and second-particle configuration design to maximize the strengthening effect of gamma '' phase in 718-type superalloys. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：66 / 70

页数：5

共 30 条

[1] Precipitation and clustering in the early stages of ageing in Inconel 718 [J].

Alam, Talukder ;

Chaturvedi, Mahesh ;

Ringer, Simon P. ;

Cairney, Julie M. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (29-30) :7770-7774

[2] δ Phase precipitation in Inconel 718 and associated mechanical properties [J].

Anderson, M. ;

Thielin, A. -L. ;

Bridier, F. ;

Bocher, P. ;

Savoie, J. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 679 :48-55

[3]

Andersson J, 2014, 8TH INTERNATIONAL SYMPOSIUM ON SUPERALLOY 718 AND DERIVATIVES, P249

[4] Simulation of creep cavity growth in Inconel 718 alloy [J].

Ankit, Kumar ;

Prasad, Nishtala .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (12) :4209-4216

[5]

Boehlert CJ, 2005, Superalloys 718, 625, 706 and Derivatives, Proceedings, P311

[6] The effect of sheet processing on the microstructure, tensile, and creep behavior of INCONEL alloy 718 [J].

Boehlert, CJ ;

Dickmann, DS ;

Eisinger, NC .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2006, 37A (01) :27-40

[7] Dependence of creep fracture of Inconel 718 on grain boundary precipitates [J].

Chen, W ;

Chaturvedi, MC .

ACTA MATERIALIA, 1997, 45 (07) :2735-2746

[8] Effects of processing routes on room temperature tensile strength and elongation for Inconel 718 [J].

Chen, Yung-Ta ;

Yeh, An-Chou ;

Li, Ming-Yen ;

Kuo, Shih-Ming .

MATERIALS & DESIGN, 2017, 119 :235-243

[9] MORPHOLOGY OF Y' AND Y'' PRECIPITATES AND THERMAL-STABILITY OF INCONEL 718 TYPE ALLOYS [J].

COZAR, R ;

PINEAU, A .

METALLURGICAL TRANSACTIONS, 1973, 4 (01) :47-59

[10] Enabling Large Superalloy Parts Using Compact Coprecipitation of γ' and γ" [J].

Detor, Andrew J. ;

DiDomizio, Richard ;

Sharghi-Moshtaghin, Reza ;

Zhou, Ning ;

Shi, Rongpei ;

Wang, Yunzhi ;

McAllister, Donald P. ;

Mills, Michael J. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2018, 49A (03) :708-717

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