2015
DOI: 10.26628/ps.v87i3.131
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Wpływ kulowania na właściwości użytkowe połączeń spawanych stali austenitycznej 1.4539 wykonanych metodą TIG i wiązką lasera

Abstract: Przedmiotem badań była stal austenityczna 1.4539 (o zaw. proc. Ni 24÷26, Cr 19÷21, Mo 4÷5, Cu 1,2÷2,0, Mn ≤ 2,0, N ≤ 0,15, Si ≤ 0,7, P ≤ 0,030, S ≤ 0,010, C ≤ 0,02) spawana metodą TIG oraz laserowo. Połączenie nietopliwą elektrodą wolframową Φ2,5 mm MTC MT-904L i spoiwem G/W 20 25 5 CuL (20% Cr, 25% Ni, 4,5% Mo, 1,5% Cu) zostało wykonane w Zakładach Budowy Aparatury Chemicznej, Grupa Azoty w Tarnowie wg technologii produkcyjnej stosowanej praktycznie do wykonania m.in. aparatury chemicznej (rys. 1a, b). Nat… Show more

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“…Other tests identified the significant effect of the ball peening process on the structure, microhardness and internal stresses of joints made of austenitic steel 1.4539. The tests revealed the refinement of the surface structure, an increase in the microhardness of the welded joints as well as the presence of compressive stresses [11]. As can be seen in the above-presented examples, changes in properties of welded joints made of stainless austenitic steels are dependent on numerous factors.…”
Section: Introductionmentioning
confidence: 68%
“…Other tests identified the significant effect of the ball peening process on the structure, microhardness and internal stresses of joints made of austenitic steel 1.4539. The tests revealed the refinement of the surface structure, an increase in the microhardness of the welded joints as well as the presence of compressive stresses [11]. As can be seen in the above-presented examples, changes in properties of welded joints made of stainless austenitic steels are dependent on numerous factors.…”
Section: Introductionmentioning
confidence: 68%
“…The mechanical and thermophysical properties of 904L steel accounting for its work in high temperatures, resistance to corrosion, and resistance to low-cycle thermal fatigue result in the fact that this steel is mainly used to produce chemical installations in nuclear power plants (e.g., FLAMANVILLE in France) [1] and also to produce the inside walls of manholes that are constantly in direct contact with hazardous substances.…”
Section: Introductionmentioning
confidence: 99%