本文關(guān)鍵詞：鈦合金表面電火花著色及摩擦磨損性能研究　出處：《長春理工大學》2015年碩士論文　論文類型：學位論文

  更多相關(guān)文章： 高速電火花線切割 Ti-6Al-4V 表面著色 減摩性能

【摘要】：為增強鈦合金表面的觀賞性,提高其顯微硬度、耐磨性及使用壽命,擴大其應用范圍。本文利用高速電火花線切割放電加工技術(shù)對Ti-6Al-4V合金表面進行著色與改性。本文從高速電火花線切割原理出發(fā),通過改變放電加工參數(shù),在Ti-6Al-4V合金表面成功制備出六種色調(diào);對著色加工后Ti-6Al-4V合金表面的進行摩擦磨損性能相關(guān)的理論分析;針對Ti-6Al-4V合金表面顯色機制,利用電子能譜儀和X射線衍射儀設(shè)備對著色表面反應膜的元素含量和物相結(jié)構(gòu)進行檢測;對著色試樣分別進行1000小時的陽光照射和水中浸泡;利用納米壓痕儀分別對拋光基體表面和著色加工表面進行顯微硬度檢測;利用微摩擦磨損測試儀對著色表面進行不同摩擦時間、不同法向載荷、不同滑動速率單因素變化條件下滑動干摩擦磨損性能分析,評價其著色表面耐磨性。實驗結(jié)果表明,經(jīng)過高速電火花線切割加工后的著色表面具有良好的穩(wěn)定性和耐久性,著色表面的顯微硬度均高于基體,且在本文實驗中各種單因素變化條件下的著色加工表面的平均摩擦系數(shù)均較未著色基體表面降低60%~70%,呈現(xiàn)出優(yōu)異的減摩性能。該方法大幅增加了鈦合金的耐用性,對于擴展其應用范圍具有十分重要的意義。
[Abstract]:In order to enhance the surface of titanium alloy ornamental, improving the microhardness, wear resistance and service life, expand its scope of application. This paper uses high speed WEDM discharge machining technology on Ti-6Al-4V alloy surface coloring and modified. This paper cutting from the high-speed electric spark line principle, by changing the discharge machining parameters in Ti-6Al-4V the alloy surface was successfully prepared by six kinds of color; color processing after the performance analysis of the related theory of friction and wear surface of Ti-6Al-4V alloy on the surface of Ti-6Al-4V alloy; chromogenic mechanism, using electron spectroscopy and element content of instrument and X ray diffraction equipment for coloring surface film phase structure of color detection; samples were 1000 hours of sunlight and water immersion respectively; microhardness testing on the substrate surface polishing and coloring processing surface using nano indentation; using micro Different colored surface friction time on friction and wear tester under different normal loads, different slip rate of single factor changes under the condition of dry sliding friction and wear performance analysis, to evaluate the wear surface coloring. The experimental results show that the high speed WEDM coloring surface after processing has good stability and durability, hardness the painted surface was higher than that of the matrix, and in the experiment of single factor under the variation of average friction coefficient on the surface of the coloring process was better than that of non colored surface decreased 60%~70%, showing excellent antifriction performance. This method greatly increases the durability of titanium alloy, is very important to expand its scope of application has significance.

【學位授予單位】：長春理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TG661

【參考文獻】

相關(guān)期刊論文 前1條

1 高上品;鈦合金表面的電火花著色加工技術(shù)[J];電加工與模具;2004年06期

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本文編號：1395114