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- W2378899263 abstract "The martensitic stainless steels of type 0Cr17Ni4Cu3 are extensively used in the chemical, petroleum and medicinal industry because they possess high strength, good mechanical property, simple heat-treatment process and excellent corrosion resistance. Although in literature it has been indicated that “stress corrosion cracking for these steels may occur in some environments”,no any detailed data and research reports were available. In the present work, the burst of centrifugal drum made of 0Cr17Ni4Cu3Mo2Nb steel was systematically investigated. The results showed that the strength design, operational process, microstructure, chemical composition and mechanical properties of the device were quite right. However, its material, 0Cr17Ni4Cu3Mo2Nb steel, was found to exhibit great susceptibility to SCC in 0.5mol/L NaCl +2.5mol/L H 2SO 4 solution at room temperature. The threshold stress intensity, K ISCC ,was only 14MPam 1/2 and the threshold stress, σ th, was not higher than 150MPa, being 12 percentage of its strength. According to the fracto graphy, experimental and calculated results, it was confirmed that the burst of the centrifugal drum was caused by environmental sensitive fracture. When the martensitic stainless steels were used their environmental fracture behavior should be considered carefully and the allowable load should not exceed the σ th or K ISCC ." @default.
- W2378899263 created "2016-06-24" @default.
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- W2378899263 date "2009-10-10" @default.
- W2378899263 modified "2023-09-25" @default.
- W2378899263 title "AN INVESTIGATION ON THE BURST OF CENTRIFUGAL DRUM MADE OF OCr17Ni4Cu3Mo2NB STEEL" @default.
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