Banaszek Katarzyna, Maślanka Marek, Semenov Michael, Klimek Leszek
Department of General Dentistry, Chair of Restorative Dentistry, Medical University of Lodz, Pomorska 251, 92-217 Lodz, Poland.
BOSMAL Automotive Research and Development Institute Ltd., Sarni Stok 93, 43-300 Bielsko-Biała, Poland.
Materials (Basel). 2022 Mar 27;15(7):2471. doi: 10.3390/ma15072471.
Investigating the general corrosion resistance of Ti(C,N) type coatings on a prosthetic nickel alloy in the aspect of their use as protective coatings on prosthetic and orthodontic elements. Five groups of Ni-Cr alloy samples covered with Ti(C,N) type coatings differing in their carbon and nitrogen contents were used for the tests. The reference group included alloy samples without coatings. The samples were held for 105 days (2520 h) in salt spray chambers and examined by means of the NSS (neutral salt spray) and SWAAT (sea water acetic acid test) tests. After the periods of 14, 28, 81 and 105 days, the samples were removed and weighed, and their weight losses were determined. In the case of each type of Ti(C,N) coating, the mass loss was lower than the mass loss of a sample without a coating, which makes it possible to state that coatings improve the corrosion resistance. No significant differences in the resistance were observed between the particular coatings. The corrosion rate of the examined coatings is close to parabolic. Ti(C,N) type coatings improve the resistance of a prosthetic Ni-Cr alloy and can be used as protective coatings for prosthetic and orthodontic elements.
研究Ti(C,N)型涂层在用作修复和正畸元件的防护涂层方面对修复用镍合金的一般耐腐蚀性。五组覆盖有碳和氮含量不同的Ti(C,N)型涂层的镍铬合金样品用于测试。参考组包括未涂覆涂层的合金样品。样品在盐雾试验箱中放置105天（2520小时），并通过NSS（中性盐雾）和SWAAT（海水醋酸试验）进行检测。在14天、28天、81天和105天后，取出样品称重，并确定其重量损失。对于每种类型的Ti(C,N)涂层，质量损失均低于未涂覆涂层的样品，这表明涂层提高了耐腐蚀性。各涂层之间未观察到显著的耐腐蚀性差异。所检测涂层的腐蚀速率接近抛物线型。Ti(C,N)型涂层提高了修复用镍铬合金的耐腐蚀性，可作为修复和正畸元件的防护涂层。
