Comparison of Residual Stresses in Inconel 718 Simple Parts Made by Electron Beam Melting and Direct Laser Metal Sintering

被引：226

作者：

Sochalski-Kolbus, L. M. ^{[1
,2
]}

Payzant, E. A. ^{[1
]}

Cornwell, P. A. ^{[2
]}

Watkins, T. R. ^{[2
]}

Babu, S. S. ^{[3
,4
]}

Dehoff, R. R. ^{[2
,3
]}

Lorenz, M. ^{[5
,6
]}

Ovchinnikova, O. ^{[5
]}

Duty, C. ^{[2
,3
]}

机构：

[1] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37830 USA

[2] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37830 USA

[3] Oak Ridge Natl Lab, Mfg Demonstrat Facil, Oak Ridge, TN 37830 USA

[4] Univ Tennessee, Dept Aerosp & Biomed Engn, Knoxville, TN USA

[5] Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37830 USA

[6] Natl Phys Lab, Teddington TW11 0LW, Middx, England

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2015年 / 46A卷 / 03期

基金：

美国能源部;

关键词：

INTERGRANULAR STRAINS; MECHANICAL-PROPERTIES; DIFFRACTION; MICROSTRUCTURE;

D O I：

10.1007/s11661-014-2722-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Residual stress profiles were mapped using neutron diffraction in two simple prism builds of Inconel 718: one fabricated with electron beam melting (EBM) and the other with direct laser metal sintering. Spatially indexed stress-free cubes were obtained by electrical discharge machining (EDM) equivalent prisms of similar shape. The (311) interplanar spacings from the EDM sectioned sample were compared to the interplanar spacings calculated to fulfill stress and moment balance. We have shown that applying stress and moment balance is a necessary supplement to the measurements for the stress-free cubes with respect to accurate stress calculations in additively manufactured components. In addition, our work has shown that residual stresses in electron beam melted parts are much smaller than that of direct laser metal sintered parts most likely due to the powder preheating step in the EBM process. (C) The Minerals, Metals & Materials Society and ASM International (outside the USA) 2015

引用

页码：1419 / 1432

页数：14

共 35 条

[1] The Origin of Microstructural Diversity, Texture, and Mechanical Properties in Electron Beam Melted Ti-6Al-4V [J].

Al-Bermani, S. S. ;

Blackmore, M. L. ;

Zhang, W. ;

Todd, I. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2010, 41A (13) :3422-3434

[2]

[Anonymous], 2014, NACE CORROS 2014

[3]

Antonysamy A.A., 2012, Microstructure, Texture and Mechanical Property Evolution during Additive Manufacturing of Ti6Al4V Alloy for Aerospace Applications

[4] Intergranular strains in textured steel [J].

Daymond, MR ;

Tomé, CN ;

Bourke, MAM .

ECRS 5: PROCEEDINGS OF THE FIFTH EUROPEAN CONFERENCE ON RESIDUAL STRESSES, 2000, 347-3 :54-59

[5] Controlling heat transfer in micro electron beam welding using volumetric heating [J].

Gajapathi, Satya S. ;

Mitra, Sushanta K. ;

Mendez, Patricio F. .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2011, 54 (25-26) :5545-5553

[6]

Gnäupel-Herold T, 2014, AIP CONF PROC, V1581, P1205, DOI [10.1063/1.4864958, 10.1063/14864958]

[7] Microstructure, microhardness, and residual stress analysis of laser surface cladding of low-carbon steel [J].

Grum, J ;

Znidarsic, M .

MATERIALS AND MANUFACTURING PROCESSES, 2004, 19 (02) :243-258

[8] Intergranular strains in Inconel-600 [J].

Holden, TM ;

Holt, RA ;

Tomé, CN .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 282 (1-2) :131-136

[9]

Hutchings M.T., 2005, INTRO CHARACTERIZATI, P186

[10] A Comparison of Residual Stress Development in Inertia Friction Welded Fine Grain and Coarse Grain Nickel-Base Superalloy [J].

Iqbal, N. ;

Rolph, J. ;

Moat, R. ;

Hughes, D. ;

Hofmann, M. ;

Kelleher, J. ;

Baxter, G. ;

Withers, P. J. ;

Preuss, M. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2011, 42A (13) :4056-4063

← 1 2 3 4 →