叶君,杜楠,王力强,尹茂生,周国华,王帅星.钛合金表面氟化物-磷酸盐转化膜的制备及性能研究[J].表面技术,2015,44(2):38-42.
YE Jun,DU Nan,WANG Li-qiang,YIN Mao-sheng,ZHOU Guo-hua,WANG Shuai-xing.Preparation and Properties of Fluoride-Phosphate Conversion Coating Formed on Titanium Alloy[J].Surface Technology,2015,44(2):38-42
钛合金表面氟化物-磷酸盐转化膜的制备及性能研究
Preparation and Properties of Fluoride-Phosphate Conversion Coating Formed on Titanium Alloy
投稿时间:2014-10-14  修订日期:2015-02-20
DOI:10.16490/j.cnki.issn.1001-3660.2015.02.008
中文关键词:  钛合金  转化膜  摩擦系数  附着力
英文关键词:titanium alloy  conversion coating  friction coefficient  adhesion
基金项目:
作者单位
叶君 南昌航空大学 轻合金加工科学与技术国防重点学科实验室, 南昌 330063 
杜楠 南昌航空大学 轻合金加工科学与技术国防重点学科实验室, 南昌 330063 
王力强 成都飞机工业(集团)公司, 成都 610092 
尹茂生 成都飞机工业(集团)公司, 成都 610092 
周国华 成都飞机工业(集团)公司, 成都 610092 
王帅星 南昌航空大学 轻合金加工科学与技术国防重点学科实验室, 南昌 330063 
AuthorInstitution
YE Jun National Defense Key Disciplines Laboratory of Light Alloy Processing Science and Technology, Nanchang Hangkong University, Nanchang 330063, China 
DU Nan National Defense Key Disciplines Laboratory of Light Alloy Processing Science and Technology, Nanchang Hangkong University, Nanchang 330063, China 
WANG Li-qiang Chengdu Aircraft Industrial Group Co. , Chengdu 610092, China 
YIN Mao-sheng Chengdu Aircraft Industrial Group Co. , Chengdu 610092, China 
ZHOU Guo-hua Chengdu Aircraft Industrial Group Co. , Chengdu 610092, China 
WANG Shuai-xing National Defense Key Disciplines Laboratory of Light Alloy Processing Science and Technology, Nanchang Hangkong University, Nanchang 330063, China 
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中文摘要:
      目的 研究一种钛合金化学转化工艺,增强钛合金表面防护能力及其与涂层的结合能力。 方法通过单因素实验确定 TC1 钛合金氟化物-磷酸盐转化工艺,采用 SEM,EDS,XRD 分析膜层的微观形貌及成分,同时测试转化膜的有关性能。 结果 在 Na3PO4 40 g/ L,NaF 15 g/ L,酸度调节剂 A 25 mL/ L,pH 控制在 4. 4 ~4. 6 之间,温度 30 ℃条件下,可在 TC1 钛合金表面获得均匀一致的灰色转化膜。 转化膜由许多细小的球状晶粒组成,主要相成分为 Na3TiOF5 及 Na2TiF6。 转化膜的摩擦系数仅为 0. 3 ~ 0. 5,明显低于 TC1 基体。 转化膜与 TB06-9 底漆的干性附着力为0 级,浸泡48 h 后的湿态附着力仍可达1 级,远远好于 TC1 基体。 结论 氟化物-磷酸盐转化膜可以降低 TC1 钛合金的摩擦系数,提高其与有机涂层的附着力。
英文摘要:
      Objective A chemical conversion technique was researched to enhance the protective ability of titanium alloy surface and the adhesion between titanium alloy and organic coating. Methods The preparation technique of fluoride-phosphate conversion coating formed on TC1 alloy was determined by the single-factor experiments. The microstructure and composition of conversion coating were analyzed by SEM, EDS and XRD. Besides, the related properties of the conversion coating were researched. Results A uniform, coherent and gray conversion coating could be obtained on the surface of TC1 alloy when Na3PO4, NaF, Acidity Regulator A, pH and temperature were 40 g/ L, 15 g/ L, 25 mL/ L, 4. 4 ~4. 6 and 30 ℃, respectively. The microstructure of the coating showed many small spherical grains. The main phase components were Na3TiOF5 and Na2TiF6. The friction coefficient of the fluoride-phosphate conversion coating was only 0. 3 ~0. 5, which was significantly lower than that of TC1 alloy. The dry adhesion level between conversion coating and TB06-9 organic coating was 0, and the wet adhesion level after 48 h immersion could still reach 1, both were far better than those of the TC1 alloy substrate. Conclusion Fluoride-phosphate conversion coating could reduce the friction coefficient TC1 titanium alloy, and improve the adhesion between TC1 alloy and organic coating.
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