Preparation of Al-based amorphous coatings and their properties

نویسندگان

چکیده

Al86Ni8Co1La1Y2Gd2 amorphous coatings were prepared using cold gas kinetic spray technology. The results show that are achieved with the porosity about 3.2%, thickness 893 ?m, amount of phase 82.5%, hardness 300HV0.2. corrosion potential and anti-corrosion life 7075 T6 alloy aluminum ?0.78 V 72 h, respectively. electrochemical analysis neutral salt ?0.69 274 h for Al-based coatings, Therefore, is 3.8 times alloy. Besides, failure mechanism was analyzed TEM in this investigation. In a word, keep dense structure, high content, favorable stabilizing ability longer life. That is, have better comprehensive properties. these findings indicate present technique can protect very well they be considered to used aviation field.

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ژورنال

عنوان ژورنال: Journal of Rare Earths

سال: 2021

ISSN: ['1002-0721', '2509-4963']

DOI: https://doi.org/10.1016/j.jre.2020.04.018