SHANDONG SCIENCE ›› 2016, Vol. 29 ›› Issue (2): 36-40.doi: 10.3976/j.issn.1002-4026.2016.02.008
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XIU Dapeng,ZHANG Xinen
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Abstract:
We analyze such failure reasons of steel plate Q235B fracture of gas generator as its chemical composition, fracture appearance and inclusion composition by a spectrometer, a metallurgical microscope, an electron probe, etc. We discover that the main causes of the steel plate fracture are sulfidesilicate inclusion and strip metallographic structure in the steel plate. We further present such prevention and improvement measures as inclusion reduction, normalizing processing or strip structure elimination through diffusion annealing.
Key words: abrasion and corrosion, stress concentration, metallographic structure, fatigue fracture
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XIU Dapeng,ZHANG Xinen. Failure analysis of facade plate fracture of gas generator[J].SHANDONG SCIENCE, 2016, 29(2): 36-40.
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URL: https://www.sdkx.net/EN/10.3976/j.issn.1002-4026.2016.02.008
https://www.sdkx.net/EN/Y2016/V29/I2/36
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