The effect of welding defects to the tensile behavior in corrosive environment of AISI 304L stainless steel joined with shielded metal electrode

• Autorzy: Türkan M. , Karakaş Ö.

Identyfikatory

DOI

10.5604/01.3001.0010.7986

• Języki publikacji: EN

Abstrakty

EN

Purpose: Determination of the tensile behavior of welded constructions made of austenitic stainless steel in corrosive environments is of great importance for the safer use of the construction. When austenitic stainless steels are welded together, welding defects can occur in some cases. And stainless steels are used in corrosive environments. Thus, we are aimed to investigate the effect of welding defects the tensile behavior in corrosive environment of AISI 304 L stainless steel joined with shielded metal electrode. Design/methodology/approach: Hardness measurements and micro-macro structures examination were made before the corrosion test to characterize the structure of the weld zone. Corrosion tests were carried out in accordance with EN ISO 9227 by exposing the welded tensile specimens to salt spray for 24-96-240-480-720-1000 hours. After the salt spray test, tensile tests were performed. The fractured surfaces were examined following the tensile tests by scanning electron microscope (SEM). Findings: A significant decrease in the tensile strength of the material was observed with the increase of the salt spraying period as a result of the tests. It is worth noting that corrosion products were occurred especially in the areas of welding defects. Research limitations/implications: This study was performed on materials containing welding defects. In addition, the corrosive environment was provided by salt spraying. It should not be forgotten that the materials may behave differently in different corrosive environments. Originality/value: While there are studies regarding effects of welding defects and corrosion individually, no study has been found in the literature which considers the effect of welding defects within corrosive environments on the material strength. Therefore, this study presents novel findings by considering both detrimental effects at the same time. The study shows significant decrease in strength of the material due to welding defects and corrosive environment.

Słowa kluczowe

EN

AISI 304L stainless steel; weld defect; tensile behaviour; salt spray

PL

stal nierdzewna AISI 304L; wada spoiny; mgła solna

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2017
• Tom: Vol. 85, nr 1
• Strony: 26--30
• Opis fizyczny: Bibliogr. 6 poz., rys., tab.

Twórcy

autor

Türkan M.

• Mechanical Engineering Department, Engineering Faculty, Pamukkale University, 20070 Kinikli, Denizli, Turkey, Vocational School, Izmir University of Economics, 35330 Balçova, Izmir, Turkey
• Mechanical Engineering Department, Engineering Faculty, Pamukkale University, 20070 Kinikli, Denizli, Turkey

autor

Karakaş Ö.

• Mechanical Engineering Department, Engineering Faculty, Pamukkale University, 20070 Kinikli, Denizli, Turkey, Vocational School, Izmir University of Economics, 35330 Balçova, Izmir, Turkey

Bibliografia

• [1] Y. Feng, Z. Luo, Z. Liu, Y. Li, Y. Luo, Y. Huang, Keyhole gas tungsten arc welding of AISI 316L stainless steel, Material and Design 85 (2015) 24-31, doi: https://doi.org/10.1016/j.matdes.2015.07.011.
• [2] Y. Cui, C.D. Lundin, Austenite-preferential corrosion attack in 316 austenitic stainless steel welded metals, Material and Design 28/1 (2007) 324-328, doi: https://doi.org/10.1016/j.matdes.2005.05.022.
• [3] Y. Cui, C.D. Lundin, Evaluation of initial corrosion location in E316L austenitic stainless steel weld metals, Materials Letters 59/12 (2005) 1542-1546, doi: https://doi.org/10.1016/j.metlet.2005.01.018.
• [4] M. Dadfar, M.H. Fathi, F. Karimzadeh, M.R. Dadfar, A. Saatchi, Effect of TIG welding on corrosion behavior of 316L stainless steel, Materials Letters 61/11-12 (2007) 2343-2346, doi: https://doi.org/10.1016/j.metlet.2006.09.008.
• [5] B. Gülenç, K. Develi, N. Kahraman, A. Durgutlu, Experimental study of the effect of hydrogen in argon as a shielding gas in MIG welding of austenitic stainless steel, International Journal of Hydrogen Energy 30/13-14 (2005) 1475-1481, doi: https://doi.org/10.1016/j.ijhydene.2004.12.012.
• [6] A. Durgutlu, Experimental investigation of the effect of hydrogen in argon as a shielding gas on TIG welding of austenitic stainless steel, Material and Design 25/5 (2004) 19-23, doi: https://doi.org/10.1016/j.matdes.2003.07.004.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).