EFFECT OF La2O3 ON HIGH-TEMPERATURE OXIDATION RESISTANCE OF ELECTROSPARK DEPOSITED Ni-BASED COATINGS

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YUXIN GAO ; JIAN YI ; ZHIGANG FANG ; HU CHENG (2014)
  • Journal: Surface Review and Letters, volume 21, issue 5, pages 1,450,071-1
  • Subject: High-temperature oxidation, La2O3, Ni-based coatings

The oxidation tests of electrospark deposited Ni-based coatings without and with 2.5 wt.% La2O3 were conducted at 960°C in air for 100 h. The oxidation kinetic of the coatings was studied by testing the weight gain. The phase structures and morphologies of the oxidized ... View more
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