实用口腔医学杂志
實用口腔醫學雜誌
실용구강의학잡지
JOURNAL OF PRACTICAL STOMATOLOGY
2009年
4期
471-474
,共4页
张丽仙%赵铱民%邵龙泉%柳玉晓
張麗仙%趙銥民%邵龍泉%柳玉曉
장려선%조의민%소룡천%류옥효
镍铬合金%表面涂层%抗腐蚀
鎳鉻閤金%錶麵塗層%抗腐蝕
얼락합금%표면도층%항부식
Ni-Cr alloy%Coating%Corrosion Resistance
目的:通过电化学腐蚀法测试镍铬合金表面不同涂层在中性及酸性环境中的抗腐蚀性能.方法:分别以中性和酸性人工唾液为电解液,测量不同涂层的镍铬合金试件电极的自然腐蚀电位Ecorr、极化电阻Rp.结果:在中性和酸性人工唾液中,无论镀膜与否的镍铬合金的自腐蚀电位(Ecorr)均为正值,不易发生电化学腐蚀和电偶腐蚀.结论:氮化钛膜、电镀金膜、金泥涂层及金瓷涂层的镍铬合金具有较强抗腐蚀性和美观性,可提高基体金属的耐腐蚀性能.
目的:通過電化學腐蝕法測試鎳鉻閤金錶麵不同塗層在中性及痠性環境中的抗腐蝕性能.方法:分彆以中性和痠性人工唾液為電解液,測量不同塗層的鎳鉻閤金試件電極的自然腐蝕電位Ecorr、極化電阻Rp.結果:在中性和痠性人工唾液中,無論鍍膜與否的鎳鉻閤金的自腐蝕電位(Ecorr)均為正值,不易髮生電化學腐蝕和電偶腐蝕.結論:氮化鈦膜、電鍍金膜、金泥塗層及金瓷塗層的鎳鉻閤金具有較彊抗腐蝕性和美觀性,可提高基體金屬的耐腐蝕性能.
목적:통과전화학부식법측시얼락합금표면불동도층재중성급산성배경중적항부식성능.방법:분별이중성화산성인공타액위전해액,측량불동도층적얼락합금시건전겁적자연부식전위Ecorr、겁화전조Rp.결과:재중성화산성인공타액중,무론도막여부적얼락합금적자부식전위(Ecorr)균위정치,불역발생전화학부식화전우부식.결론:담화태막、전도금막、금니도층급금자도층적얼락합금구유교강항부식성화미관성,가제고기체금속적내부식성능.
Objective: To evaluate the corrosion resistance of Ni-Cr alloy with different coatings in neutral and acid saliva by electrochemistry method. Methods: Measured the self-corrosion potential (Ecorr) and polarization resistance(Rp) curves of Ni-Cr alloy models with different coatings in neutral and acid artificial salivas. Results: The Ecorr of the Ni-Cr alloys all showed positive values, the electrochemistry corrosion and galvanic corrosion were not detected. Conclusion: Ni-Cr alloy with titanium nitride coating, gold electroplating coating, gold-paste layer and gold-porcelain blended layer have both anti-corrosion and esthetical function without changing its own property.