Hydrogen delayed cracking of high-strength weldable steels

• Autorzy: Ćwiek J.
• Języki publikacji: EN

Abstrakty

EN

Hydrogen degradation of high-strength steel and their welded joints was evaluated under constant load mode in sea-water. Tests were carried out using round notched specimens in sea-water at open circuit potential and under cathodic polarization. 14HNMBCu steel grade with minimum yield strength of 690 MPa, and their submerged arc welded (SAW) and shielded metal arc welded (SMAW) joints were examined. Presence or lack of delayed failure of samples was chosen as measures of hydrogen degradation. Fracture modes were investigated with the use of a scanning electron microscope (SEM).

Słowa kluczowe

EN

hydrogen embrittlement; hydrogen delayed cracking; high-strength low-alloy steel; seawater; cathodic polarization

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2005
• Tom: Vol. 5, nr 1-3
• Strony: 5--13
• Opis fizyczny: Bibliogr. 11 poz., 4 rys., 5 tab.

Twórcy

autor

Ćwiek J.

• Gdańsk University of Technology, Department of Materials Science and Engineering, Gdańsk, Poland

Bibliografia

• 1. Banerjee K., Chatterjee U. K., Hydrogen Embrittlement of a HSLA-100 Steel in Seawater , ISIJ Int. Vol. 39, No 1, 1999, pp. 47-55.
• 2. Zieliński A., Hydrogen Degradation of Nonferrus Metals and Alloys (in Polish), Gdańsk Scientific Society, Gdańsk 1999.
• 3. Timmins P. F., Solutions to Hydrogen Attack in Steels, AMS Int., 1997.
• 4. Śmiałowski M., Hydrogen in Steels, Pergamon Press, Oxford 1962.
• 5. Oriani R. A., Hirth J. P., Smialowski M. (ed.), Hydrogen Degradation of Ferrous Alloys, Noyes Publ. Park, Ridge, USA, 1985.
• 6. Birnbaum H. K., Mechanisms of Hydrogen-Related Fracture of Metals, Proc. Int. Conf. „Environment-Induced Cracking of Metals”, National Association of Corrosion Engineers, Houston, Texas, USA, 1988, pp. 21-29.
• 7. PN-EN 10137-2:2000. Plates and wide flats made of high yield strength structural steels in the quenched and tempered or precipitation hardened conditions – Delivery conditions for quenched and tempered steels.
• 8. PN-EN 10002-1:1998 Metallic materiale – Tensile testing – Part 1 – Metod of test at ambitne temperature.
• 9. PN-EN 1321:2000 Destructive tests on welds in metallic materialls – Macroscopic and microscopic examination of welds.
• 10. PN-EN 2832:2001 Aerospace series – Hydrogen embrittlement of steels – Notched specimen test.
• 11. PN-66/C-06502. Substitute sea water.