The influence of annealing temperature and time on the structure and features of the Al-Si coatings on steel sheets, purposed for pressured welded pipes applied in exhaust systems

• Autorzy: Żaba K.

Warianty tytułu

PL

Wpływ temperatury i czasu wyżarzania na strukturę i własności powłoki Al-Si na stalowych blachach, przeznaczonych na zgrzewane rury stosowane w układach wydechowych

• Języki publikacji: EN

Abstrakty

EN

The research results shown in the article characterize the initial state of the Al-Si coating on the steel sheet and its evolution, being an effect of the influence of the temperature and the time. The heating was carried out in different temperatures (up to 800 °C) and in different periods. After the heating, observation of the sections with the appliance of a scanning electron microscope was realized and microanalyses of the chemical composition were carried out. The state and the features of the coatings were also tested in technological tests by bumping, deep drawing, bending and expanding. The results of microhardness research, documenting structural changes, are also presented.

PL

Przedstawione w artykule wyniki badań charakteryzują stan początkowy powłoki Al-Si oraz jej ewolucję skutkiem oddziaływania temperatury i czasu. Nagrzewanie prowadzono w różnych temperaturach (do 800 °C) i w różnych czasach. Po nagrzewaniu dokonano obserwacji przekrojów za pomocą elektronowego mikroskopu skaningowego oraz dokonano mikroanaliz składu chemicznego. Badano również stan i własności powłok w testach technologicznych, w tym mikrotwardość, dokumentującą zmiany strukturalne.

Słowa kluczowe

EN

Al-Si coating; annealing temperature; intermetallic layer; microhardness

PL

blachy stalowe; układ wydechowy; powłoka Al-Si

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2009
• Tom: Vol. 9, no 2
• Strony: 145--152
• Opis fizyczny: Bibliogr. 11 poz., rys., wykr.

Twórcy

autor

Żaba K.

• University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland

Bibliografia

• [1] ASTM A463/A463M - 06: Standard specification for steel sheet, aluminum-coated, by the hot-dip process.
• [2] ASM Handbook: Surface engineering, ASM International, Handbook Commitee, Vol. 5, 1994, pp. 346.
• [3] Kawase H., Takezoe A.: Peeling of coated metal due to severe press-forming in aluminized steel sheet, Transactions of the Iron and Steel Institute of Japan, Vol. 22 , No. 5, 1982, pp. 371-376.
• [4] Sano M., Kubota N., Masuhara K., Yamayoshi K., Fukumoto H.: Development of prepainted aluminized steel sheet for automotive mufflers, SAE International, 1985.
• [5] Kobayashi S., Yakou T.: Control of intermetallic compound layers at interface between steel and aluminum by diffusion-treatment, Materials Science and Engineering A, Vol. 338, Issues 1-2, 2002, pp. 44-53.
• [6] Żaba K., Nowak S., Kąc S., Wróbel M.: Research on temperature time and atmospheric impact on Al-Si coat of low-carbon steel strips, International Conference: Problems of modern techniques in aspect of engineering and education, Pedagogical University Cracow, Institute of Technology - Cracow, November, 2006, Monography, pp. 73-78.
• [7] Wang Chaur-Jeng, Chen Shih-Ming: The high-temperature oxidation behavior of hotdipping Al-Si coating on low carbon steel, Surface and Coatings Technology, Vol. 200, Issue 22-23, 2006, pp. 6601-6605.
• [8] Kee-Hyun Kim, Van-Daele Benny, Van-Tendeloo Gustaaf, Young-Sug Chung, Jong Kyu Yoon: Analysis of the intermetallic compound formed in hot dip aluminized steel, Advanced Materials Research, Vol. 15-17, 2007, pp. 159-163.
• [9] Awan G.H., Ahmed F., Ali L., Shuja M.S. Hasan F.: Effect of coating-thickness on the formability of hot dip aluminized steel, Pakistan Journal of Engineering and Applied Science, Vol. 2, 2008, pp. 14-21.
• [10] Gul Hameed Awan, Faiz ul Hasan The morphology of coating/substrate interface in hotdip-aluminized steels, Materials Science and Engineering A, Vol. 472, Issues 1-2, 2008, pp. 157-165.
• [11] Wang Deqing: Phase evolution of an aluminized steel by oxidation treatment, Applied Surface Science, Vol. 254, Issue 10, 2008, pp. 3026-3032.