Effect of temperature and pH on cavitation erosion of super duplex stainless steel
Book
·
OSTI ID:379693
- Hong Kong Polytechnic Univ., Kowloon (Hong Kong)
Cavitation erosion characteristics of super duplex stainless steel (S32760) and austenitic stainless steel (S30400) in 3.5% NaCl solution with controlled temperature and pH value in the range of 10 to 70 C and pH 3 to 11 have been studied by means of a 20kHz ultrasonic vibrator at a peak to peak amplitude of 50 {micro}m. The erosion resistance of other stainless steels including S31803 and S31603 was also investigated for comparison purpose. Plots of cumulative erosion mass loss per unit area versus temperature for S32760 and S30400 indicate that the degree of erosion initially increases as the temperature increases from 10 C to 50 C and passes through a maximum at about 50 C and then decreases with further increase in temperature to 70 C. Results of cumulative erosion versus pH indicate that the degree of erosion of S32760 is more sensitive to pH value than that of S30400 at 23 C.
- OSTI ID:
- 379693
- Report Number(s):
- CONF-960389--
- Country of Publication:
- United States
- Language:
- English
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