Abstract
Tungsten coating of 0.2mm thickness was successfully deposited by vacuum plasma spraying technique on CuCrZr alloy with Ti bonding layer. Microstructure and chemical composition of deposited W were examined. Its thermal response and thermal fatigue properties were studied with active cooling. No cracks and no exfoliation occurred on the W surface after thermal response test with a heat flux from 0 to 8MW/m2. It survived up to 200 cycles under 8MW/m2. These results indicate that VPS-W coated Ti/CuCrZr is a potential candidate for a high heat resistance armor material on plasma facing components.
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