Influence of friction stir welding on hardness distribution in joints of AW-5083 alloy

• Autorzy: Dudzik K.

Identyfikatory

DOI

10.5604/12314005.1216441

• Języki publikacji: EN

Abstrakty

EN

The article presents the research results of hardness distribution of friction stir welded joint (FSW) of AW-5083 aluminium alloy. During the study used two types of tools: with cylindrical pin and with conical pin. FSW is a method of welding in the solid state, mechanical properties of joints welded by that method can be higher than that for arc welding techniques (MIG, TIG). The parameters of friction stir welding (FSW) used for joining 5083 alloy sheets were presented. Metallographic analysis of chosen joints showed the correct construction of structural bonded joints. The study was carried out using Vickers hardness HV1 in accordance with the requirements of the Polish Standard PN-EN 6507 using a hardness and microhardness-testing machine FM-800. The location of measurement points in the butt joint was determined in accordance with PN-EN 1043-1:2000. The indenter load was 9.8 N. In order to identify areas of particular characteristic of bonded joints macroscopic examination was performed using an optical microscope ZAISS AxioVert A1 MAT. The test specimens were polished and then etched with KELLER reagent. This enabled the precise identification of zones present in the joint, such as weld nugget, thermomechanically affected zone, native material. Hardness testing in across researched joints showed that the shape of the welding tool pin does not affect the mean value of hardness in the weld.

Słowa kluczowe

EN

FSW; welding; hardness distribution; 5xxx aluminium alloy; shipbuilding

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2016
• Tom: Vol. 23, No. 3
• Strony: 101--106
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Dudzik K.

• Gdynia Maritime University, Faculty of Marine Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: [phone], fax: [phone]

Bibliografia

• [1] Anderson, T., New developments within the Aluminium Shipbuilding Industry, Svetsaren, Vol. 58, No. 1, pp. 3-5, 2003.
• [2] Czechowski, M., Effect of anodic polarization on stress corrosion cracking of some aluminium alloys, Advances in Materials Science, Vol. 7, No. 1/11, pp. 13-20, 2007.
• [3] Czechowski, M., Pietras, A., Zadroga, L., The properties of aluminium alloys 5xxx series welded by new technology Friction Stir Welding, Inżynieria Materiałowa, No. 6/137, pp. 264-266, 2003.
• [4] Dudzik, K., Influence of joining method for hardness distribution in joints of AlZn5Mg1 alloy, Journal of KONES Powertrain and Transport, Vol. 17, No. 4, pp. 137-141, Jurata 2010.
• [5] Dudzik, K., Charchalis, A., Mechanical properties of 5083, 5059 and 7020 aluminium alloys and their joints welded by FSW, Journal of KONES Powertrain and Transport, Vol. 20, No. 2, pp. 69-73; Jurata 2013.
• [6] Dudzik, K., Czechowski, M., Analysis of possible shipbuilding application of Friction Stir Welding (FSW) method to joining elements made of AlZn5Mg1 alloy, Polish Maritime Research No. 4, pp. 37-40, 2009.
• [7] Hirata, T., Oguri, T., Hagino, H., Tsutomu, T. T, Chung, S. W., Takigawa, Y., Kenji, H. K., Influence of friction stir welding parameters on grain size and formability in 5083 aluminum alloy, Materials Science and Engineering, A 456, 2007.
• [8] Lahti, K., FSW – possibilities in shipbuilding, Svetsaren, Vol. 58, No. 1, pp. 6-8, 2003.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.