The Computer Analysis Shape of Reflexes Xrd on the Basis of X2CrNiMoN25-7-4 Steel

Szabracki, Paweł; Bramowicz, Mirosław; Lipiński, T.

doi:10.2478/v10022-010-0025-4

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Three sets of heat treatment parameters were investigated: 1 -solution treated at 1100 o C for 30 minutes, 2solution treated at 1100 o C for 30 minutes and later aged at 1000 o C for 30 min., 3 -solution treated at 1100 o C for 30 minutes and later aged at 900 o C for 30 min Phase fractions and lattice parameters of elementary cells were determined in heat treated samples using XRD methods. Diffraction peaks were described by Cauchy's functional equation using an application developed by the authors [2]. Lattice parameters for regular elementary cells were determined by the Nelson-Riley linear extrapolation method to the value corresponding to θ Bragg angle of 90 degrees [3,4].…”

Section: Methodsmentioning

confidence: 99%

Effect of Aging on the Microstructure and the Intergranular Corrosion Resistance of X2CrNiMoN25-7-4 Duplex Stainless Steel

Szabracki

Lipiński

2013

SSP

Self Cite

View full text Add to dashboard Cite

Stainless steels are used widely in many industries. A duplex microstructure offers a combination of advantages, including resistance to crevice and stress corrosion, reduced susceptibility to hot cracking in comparison with fully austenitic structures and excellent tensile strength. The paper discusses the effect of aging on the microstructure and corrosion resistance of X2CrNiMoN25-7-4 super duplex stainless steel. Low and predictable corrosion rate is an important parameter for steels operating in aggressive environments. Resistance to intergranular corrosion expressed by corrosion rate (mm/year) was determined in accordance with standard PN-EN ISO 3651-1. Metallographic studies were carried out to evaluate surface degradation and intergranular corrosion. The results support an evaluation of the impact that phase fraction changes caused by aging have on resistance to intergranular corrosion. The results of the corrosion analysis were used to develop mathematical models describing changes in corrosion rate over time for different phase fractions.

show abstract

Section: Methodsmentioning

confidence: 99%