PSI - Issue 77

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ScienceDirect Structural Integrity Procedia 00 (2026) 000 – 000 Structural Integrity Procedia 00 (2026) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 77 (2026) 543–549

© 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers Abstract This paper deals with 3D printed parts which are being investigated in the printability and mechanical properties of Hastelloy X (HX) powder by Laser Powder Bed Fusion (L-PBF) technology. HX material is widely used in the industry, which is required for oxidation resistance, fabricability, and high-temperature strength applications. The objective of the research is to print the unit of the heat exchanger by doing experimental prints through manipulating scanning strategies and altering the support structures. There are many samples printed for mechanical tests such as tensile, creep, and fatigue to be exposed to supercritical water environment, in nitrogen, and in air environment at different temperatures and different durations. Each print is evaluated, and outcomes are applied on the next print. By doing this, to achieve more stable prints and verifying and comparing the mechanical properties with industrial applications. Some issues such as support structures (especially block support), and residual stresses are addressed to be worked on the further research for HX material at the end of the research. © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers Keywords: L-PBF; Hastelloy X; Additive manufacturing; Mechanical properties; Process parameters; Support structures; Residual stress Abstract This paper deals with 3D printed parts which are being investigated in the printability and mechanical properties of Hastelloy X (HX) powder by Laser Powder Bed Fusion (L-PBF) technology. HX material is widely used in the industry, which is required for oxidation resistance, fabricability, and high-temperature strength applications. The objective of the research is to print the unit of the heat exchanger by doing experimental prints through manipulating scanning strategies and altering the support structures. There are many samples printed for mechanical tests such as tensile, creep, and fatigue to be exposed to supercritical water environment, in nitrogen, and in air environment at different temperatures and different durations. Each print is evaluated, and outcomes are applied on the next print. By doing this, to achieve more stable prints and verifying and comparing the mechanical properties with industrial applications. Some issues such as support structures (especially block support), and residual stresses are addressed to be worked on the further research for HX material at the end of the research. © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers Keywords: L-PBF; Hastelloy X; Additive manufacturing; Mechanical properties; Process parameters; Support structures; Residual stress 1. Introduction Additive manufacturing (AM), also known as 3D printing, has become a major topic of interest in the manufacturing world over the past decade. Unlike traditional methods such as CNC machining or injection moulding, which remove material, AM builds objects by adding material, typically layer by layer, directly from a 3D computer model. The American Society for Testing and Materials (ASTM) defines AM as the process of joining materials to International Conference on Structural Integrity Investigation of printability and mechanical properties of Hastelloy X (HX) manufactured by Laser Powder Bed Fusion (L-PBF) *M.Turhan a , I. Zetková a , M. Zetek a , J. Hruška b a Regional Technological Institute, Faculty of Mechanical Engineering, University of West Bohemia, Univerzitní 8, 306 14 Pilsen, Czech Republic b SVÚM a.s., Tovární 2053, 250 88 Čelákovice , Prague, Czech Republic International Conference on Structural Integrity Investigation of printability and mechanical properties of Hastelloy X (HX) manufactured by Laser Powder Bed Fusion (L-PBF) *M.Turhan a , I. Zetková a , M. Zetek a , J. Hruška b a Regional Technological Institute, Faculty of Mechanical Engineering, University of West Bohemia, Univerzitní 8, 306 14 Pilsen, Czech Republic b SVÚM a.s., Tovární 2053, 250 88 Čelákovice , Prague, Czech Republic *Corresponding author; E-mail address: turhan@fst.zcu.cz; Tel: +420 377 638 793 *Corresponding author; E-mail address: turhan@fst.zcu.cz; Tel: +420 377 638 793 1. Introduction Additive manufacturing (AM), also known as 3D printing, has become a major topic of interest in the manufacturing world over the past decade. Unlike traditional methods such as CNC machining or injection moulding, which remove material, AM builds objects by adding material, typically layer by layer, directly from a 3D computer model. The American Society for Testing and Materials (ASTM) defines AM as the process of joining materials to

2452-3216 © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers 2452-3216 © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ICSI organizers

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