Arc-based directed energy deposited Inconel 718: role of heat treatments on high-temperature tensile behavior

被引：22

作者：

Farias, Francisco Werley Cipriano ^{[1
]}

Duarte, Valdemar Rebelo ^{[1
,2
]}

Payao Filho, Joao da Cruz ^{[3
]}

Schell, Norbert ^{[4
]}

Maawad, Emad ^{[4
]}

Bordas-Czaplicki, Melanie ^{[5
]}

da Fonseca, Fabio Machado Alves ^{[5
]}

Cormier, Jonathan ^{[5
]}

dos Santos, Telmo Jorge Gomes ^{[1
,2
]}

Oliveira, Joao Pedro ^{[1
,6
]}

机构：

[1] Univ NOVA Lisboa, NOVA Sch Sci & Technol, Dept Mech & Ind Engn, UNIDEMI, P-2829516 Caparica, Portugal

[2] LASI, Lab Associado Sistemas Inteligentes, Guimaraes, Portugal

[3] Fed Univ Rio de Janeiro UFRJ, Program Met & Mat Engn, Rio De Janeiro, Brazil

[4] Helmholtz Zentrum Hereon, Inst Mat Phys, Geesthacht, Germany

[5] ISAE ENSMA, Inst Pprime, Phys & Mech Mat Dept, Futuroscope,UPR CNRS 3346, Chasseneuil, France

[6] NOVA Univ Lisbon, Sch Sci & Technol, Dept Mat Sci, CENIMAT i3N, Caparica, Portugal

来源：

MATERIALS RESEARCH LETTERS | 2024年 / 12卷 / 02期

基金：

欧盟地平线“2020”;

关键词：

Inconel; 718; heat treatment; tensile behavior at elevated temperature; crystallographic texture; arc plasma directed energy deposition; NB-BEARING SUPERALLOYS; MECHANICAL-PROPERTIES; STRAIN-RATE; PART II; MICROSTRUCTURE; ALLOY; SOLIDIFICATION; TEXTURE; DEFORMATION; FLOW;

D O I：

10.1080/21663831.2023.2297734

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study evaluated the effect of dedicated heat treatments (1050 degrees C, 1100 degrees C, 1142 degrees C, and 1185 degrees C/2 h + double-aging) on the uniaxial tensile properties at elevated temperature (650 degrees C) of Inconel (R) 718 fabricated via arc plasma directed energy deposition. They enabled to meet, for the first time, the AMS 5662 requirements at elevated temperature. Tensile tests exhibited ductile strain-stress curves. The 1100 degrees C/2 h + double-aging showed the best performance (YS0.2%, UTS, and elongation of 967 MPa, 1126 MPa, and 18.7%, respectively). Additionally, vertical specimens evidenced dynamic strain aging, although no brittle-like features were observed.

引用

页码：97 / 107

页数：11

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