Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/82826
Title: Effect of Direct Laser Deposition on Microstructure and Mechanical Properties of 316L Stainless Steel
Authors: Loginova, I.
Khalil, A.
Churyumov, A.
Solonin, A.
Popov, N.
Issue Date: 2019
Publisher: Knowledge E
Citation: Effect of Direct Laser Deposition on Microstructure and Mechanical Properties of 316L Stainless Steel / I. Loginova, A. Khalil, A. Churyumov, A. Solonin, N. Popov // XIX International scientific-technical conference “The Ural school-seminar of metal scientists-young researchers” (Ekaterinburg, Russia, 19-23 December, 2018). – Dubai : Knowledge E, 2019. – KnE Engineering, 4 (1). – pp. 82-93. – DOI 10.18502/keg.v1i1.4394
Abstract: Direct laser deposition (DLD) is a modern prototyping manufacturing technology, which can directly build full-density and high-performance complex metal parts This paper presents an investigation of the influence different scanning strategy on microstructure and mechanical properties of DLD 316L stainless steel sample. The results showed that formation of fine equiaxed austenitic structure with average grain size of the dendritic cells in 1.2-1.7 μm. Inter-track idle time has directly influence on cooling rate, grain size and mechanical properties. It was shown that the decreasing of inter-track idle time from 4.37 to 0.75 s decreases the ultimate tensile strength from 729 to 686 MPa. For obtaining high mechanical properties of samples or recovering surfaces it is necessary to choose scanning strategy along the largest dimension of the detail.
Keywords: X-RAY ANALYSIS
ELECTRON MICROSCOPY
STRESS/STRAIN MEASUREMENTS
IRON ALLOYS
LASER/POWDER METHODS
URI: http://hdl.handle.net/10995/82826
Access: Creative Commons Attribution License
License text: https://creativecommons.org/licenses/by/4.0/
Conference name: XIX International scientific-technical conference “The Ural school-seminar of metal scientists-young researchers”
Conference date: 19.11.2018-23.11.2018
ISSN: 2518-6841
DOI: 10.18502/keg.v1i1.4394
metadata.dc.description.sponsorship: This work was supported by the Ministry of Education and Science of Russian Federation in the framework of Increse Competitivness Program of NUST ”MISiS” and within the framework of the project on creation of high-tech manufacturing ”Creation of materialeffective manufacturing of aluminium alloy powders and development of additive technologies for the produce of parts for aircraft control systems”.
Origin: XIX International scientific-technical conference “The Ural school-seminar of metal scientists-young researchers”. — Ekaterinburg, 2019
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