PSI - Issue 23

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Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2019) 000 – 000 Structural Integrity Procedia 00 (2019) 000 – 000

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ScienceDirect

Procedia Structural Integrity 23 (2019) 583–588

© 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the ICMSMF organizers © 201 9 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the IC MSMF organizers. Abstract In th paper an analysis of the influence of shot p ening on structure and me hanical properties of the 5754 alumi ium lloy (PA11) welded joint using the TIG method are presented. Emission sp ctroscopy sh wed tha during shot peening a transfer of microparticl s oming from stainl ss shot (Fe-N -Cr) into the surface layer d wn to the depth of 70 – 100 μm Shot peening of a surface laye cau sed an increa e in yield point a d Young’s modulus of 20% and 30%, resp ct vely. The analy sis f microfractog aphy af er tensile tests of the 5754 aluminium alloy with butt joints strengthened by shot peening showed a lamination of upper layer down to 150 μm. © 201 9 The Authors. Published by Elsevier B.V. This is an ope acces article under CC BY-NC-ND lic nse (http://creativecommon org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the IC MSMF organizers. 9th International Conference on Materials Structure and Micromechanics of Fracture The influence of shot peening on structure and mechanical properties of 5754 aluminium alloy joints welded with TIG method 9th International Conference on Materials Structure and Micromechanics of Fracture The influence of shot peening on structure and mechanical properties of 5754 aluminium alloy joints welded with TIG method Barbara Nasiłowska a * , Paweł Bogusz b , Wojciech Skrzeczanowski a a ilit r i rsit f l , Institute f Optoelectronics, gen. S. Kaliskiego 2, 00-908, Warsaw b Military University of Technology, Faculty of Mechanical Engineering, gen. S. Kaliskiego 2, 00-908, Warsaw Barbara Nasiłowska a * , Paweł Bogusz b , Wojciech Skrzeczanowski a a Military University of Technology, Institute of Optoelectronics, gen. S. Kaliskiego 2, 00-908, Warsaw b Military University of Technology, Faculty of Mechanical Engineering, gen. S. Kaliskiego 2, 00-908, Warsaw Abstract In the paper an analysis of the influence of shot peening on structure and mechanical properties of the 5754 aluminium alloy (PA11) welded joints using the TIG method are presented. Emission spectroscopy showed that during shot peening a transfer of microparticles coming from stainless shot (Fe-Ni-Cr) into the surface layer down to the depth of 70 – 100 μm. Shot peening of a surface layer cau sed an increase in yield point and Young’s modulus of 20% and 30%, respectively. The analy sis of microfractography after tensile tests of the 5754 aluminium alloy with butt joints strengthened by shot peening showed a lamination of upper layer down to 150 μm. 1. Introduction Aluminium alloys are mainly used in shipbuilding and chemical industry for welded constructions, pressure vessels, and pipeline elements. Due to low copper concentration they are corrosion resistant. The aim of shot peening is creation of a new state of a surface layer in the material processed due to plastic-elastic impact in the point of shot material - processed item contact and production of desirable compressive stresses 1. Introduction A umi ium alloys are mainly used in shi building and chemic l industry fo welded constructions, pressure vessels, nd pipeline lement . Due to l w copper concentration the are corrosion resistant. The aim of shot peening is creat on of a new state of a surf e l yer in the material process d due to plastic-ela tic impact in the point of shot material - processed item contact and production of desirable compressive stresses Keywords: TIG, LIBS, stop aluminium 5754, PA11 Keywords: TIG, LIBS, stop aluminium 5754, PA11

* Corresponding author. Tel.: + 48 600 270 968. E-mail address: barbara.nasilowska@wat.edu.pl * Correspon ing author. Tel.: + 48 600 270 968 E-mail address: barbara.nasilowska@wat.edu.pl

2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the IC MSMF organizers. 2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an ope acces article under CC BY-NC-ND lic nse (http://creativecommon org/licenses/by-nc-nd/4.0/)

Peer-review under responsibility of the scientific committee of the IC MSMF organizers.

2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the ICMSMF organizers 10.1016/j.prostr.2020.01.149