Erosion-corrosion and cavitation-erosion measurements on copper alloys utilizing thin layer activation technique
- National Tsing Hua Univ., Taiwan (China)
- Institute of Nuclear Energy, Taiwan (China)
The surface layers of copper alloy specimens were made radioactive by bombarding with 5 MeV protons from a van de Graaff accelerator which converted Cu-65 into Zn-65 through (p,n) reaction. The amount of surface material loss could then be monitored by measuring the total remaining {gamma}-ray activity generated from Zn-65 decay. This technique, termed thin layer activation (TLA), has the advantage of in situ monitoring the rate of surface removal due to corrosion, erosion-corrosion, wearing, etc. In this work, the erosion-corrosion tests on aluminum brass and 90Cu-10Ni were conducted in circulating sea water and the erosion-corrosion rates measured using TLA and conventional methods such as linear polarization resistance (LPR) method and weight loss coupons were compared. A vibrational cavitation-erosion test was also performed on aluminum bronze, in which the measurements by TLA were compared with those of weight loss measurements.
- OSTI ID:
- 48075
- Report Number(s):
- CONF-910808--; CNN: Contract NSC76-0413-E007-18; Contract NSC78-0413-E007-14
- Country of Publication:
- United States
- Language:
- English
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