Influence of deposition orientation on fatigue response of LENS™ processed Ti6Al4V

被引：19

作者：

Bandyopadhyay, Amit ^{[1
]}

Upadhyayula, Mahadev ^{[1
]}

Traxel, Kellen D. ^{[1
]}

Onuike, Bonny ^{[1
]}

机构：

[1] Washington State Univ, Sch Mech & Mat Engn, WM Keck Biomed Mat Res Lab, Pullman, WA 99164 USA

来源：

MATERIALS LETTERS | 2019年 / 255卷

基金：

美国国家科学基金会; 美国国家卫生研究院;

关键词：

Additive manufacturing; Ti6Al4V; Compression; Fatigue failure; LENS (TM); LASER DEPOSITION; TI-6AL-4V; BEHAVIOR; DEFORMATION; COMPONENTS; MECHANISMS;

D O I：

10.1016/j.matlet.2019.126541

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

( )Understanding processing-property relationships for directed-energy-deposition (DED) parts remains a major roadblock to widespread process implementation. Herein we investigate the effect of scanning-strategy and testing-orientation on the fatigue response of as-printed Ti6Al4V components. At similar to 10(6) cycles, samples tested in the build-direction exhibited similar to 45% decrease in fatigue strength relative to the horizontally-tested samples, owing to higher overall porosity and the testing orientation relative to residual pores. Samples failing <10(6) cycles demonstrated tortuous surfaces, whereas samples enduring >10(6) cycles exhibited smoother-surfaces. Our results indicate that DED-produced parts can exhibit directionally-dependent fatigue performance, and print-strategy must be taken into consideration for dynamic-loading applications. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：4

共 21 条

[1]

Alcisto J., 2011, J MAT ENG PERFORM

[2]

Amsterdam E., 2009, 25 ICAF INT COMM AER

[3] Invited review article: Metal-additive manufacturing-Modeling strategies for application-optimized designs [J].

Bandyopadhyay, Amit ;

Traxel, Kellen D. .

ADDITIVE MANUFACTURING, 2018, 22 :758-774

[4]

Bian L., 2015, JOM

[5] Deformation and fracture behavior of laser processed dense and porous Ti6Al4V alloy under static and dynamic loadinge [J].

Biswas, N. ;

Ding, J. L. ;

Balla, V. K. ;

Field, D. P. ;

Bandyopadhyay, A. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 549 :213-221

[6]

Carrion PE, 2017, DATA BRIEF, V13, P180, DOI 10.1016/j.dib.2017.05.032

[7] Comparative study of fatigue properties of Ti-6Al-4V specimens built by electron beam melting (EBM) and selective laser melting (SLM) [J].

Chastand, Victor ;

Quaegebeur, Philippe ;

Maia, Wilson ;

Charkaluk, Eric .

MATERIALS CHARACTERIZATION, 2018, 143 :76-81

[8]

Collings E.W., 1986, ASM SER MET PROCESS

[9] Additive manufacturing of metallic components - Process, structure and properties [J].

DebRoy, T. ;

Wei, H. L. ;

Zuback, J. S. ;

Mukherjee, T. ;

Elmer, J. W. ;

Milewski, J. O. ;

Beese, A. M. ;

Wilson-Heid, A. ;

De, A. ;

Zhang, W. .

PROGRESS IN MATERIALS SCIENCE, 2018, 92 :112-224

[10]

Dinda G.P., 2008, METALL MAT T A

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