臺灣博碩士論文加值系統

本文將碳化鈦與不銹鋼兩種微米級粉末混合，利用氬銲披覆於低碳鋼表面，以改善低碳鋼表面的耐磨耗性能，使用磨耗試驗機以銷對環進行乾磨耗實驗及測量摩擦係數，探討披覆於低碳鋼表面的硬度與耐磨耗性能可以超越商用導軌的碳化鈦比例，並以金相、SEM(Scanning Electron Microscopy)及EDS(Energy Dispersive Spectrometer)觀察其表面組織合金成份及分散性。

This paper utilizes micron powder of titanium carbide and stainless steel to clad on the low-carbon steel by the GTAW(gas tungsten arc welding method). Friction coeifficient and wear tests applied sliding motion without lubricant were performed in a pin-on-ring mode on a T-53 wear testing machine. This research study the wear performance of the titanium carbide cladded layer compared with that of the commercial guide rail. In addition, the microstructure of titanium carbide cladded layer was examined by using SEM(Scanning Electron Microscopy) and EDS(Energy Dispersive Spectrometer). We found that the distribution of the titanium carbide particles is even.

中文摘要Ⅰ
英文摘要Ⅱ
誌謝Ⅲ
目錄Ⅳ
表目錄Ⅵ
圖目錄Ⅶ
符號索引Ⅷ
第一章導論1
1.1研究背景1
1.2研究目的2
第二章表面被覆技術與文獻回顧3
2.1表面被覆技術3
2.2文獻回顧4
第三章實驗材料與設17
3.1實驗材料17
3.2磨耗試驗機17
3.3實驗設備20
3.4分析儀器20
第四章實驗方法與量測分析23
4.1實驗方法23
4.2實驗前置準備23
4.3被覆試片的製作24
4.4表面材質分析與觀察24
4.5磨耗實驗25
4.6摩擦係數量25
第五章實驗結果與討論26
5.1單層被覆結果26
5.2雙層被覆結果29
5.3摩擦係數觀察31
5.4金相觀察31
5.5 SEM觀察34
5.6 EDS觀察34
5.7文獻與本文之耐磨耗性能比較36
第六章 結論與未來展望43
6.1結論45
6.2未來研究方向45
參考文獻46
附錄 參考文獻之研究內容摘要53
學位口試問答記錄58
個人資料59
表目錄
表3-1 AISI 52100軸承鋼環之成分17
表3-2 AISI 52100軸承鋼環之機械性質 17
表5-1各種TiC比例與商用導軌之磨疤面積量測27
表5-2各種TiC比例與商用導軌之磨疤最大深度量測27
表5-3各種TiC比例與商用導軌之磨疤表面粗糙度量測27
表5-4各種TiC比例與商用導軌之硬度量測27
表5-5各種TiC比例於不同負荷下之兩小時磨疤面積28
表5-6單、雙層TiC50%與TiC70%之磨疤面積量測30
表5-7單、雙層TiC50%與TiC70%之磨疤最大深度量測30
表5-8單、雙層TiC50%與TiC70%之磨疤表面粗糙度量測31
表5-9單、雙層TiC50%與TiC70%之硬度量測31
表5-10 EDS測量資料35
表5-11參考文獻之實驗條件及磨耗抵抗值38
圖目錄
圖3-1 TE53型多功能磨耗試驗機 18
圖3-2 TE53型多功能磨耗試驗機示意圖 19
圖3-3 Pin on Ring機制 19
圖3-4氬銲機 21
圖3-5表面粗度儀 22
圖3-6掃描式電子顯微鏡 22
圖4-1準備之基材 24
圖4-2氬銲披覆後之試片 24
圖4-3磨耗實驗之被覆試片尺寸 24
圖5-1各種比例TiC與低碳鋼與商用導軌之磨耗實驗結果 28
圖5-2各種比例TiC在不同負荷下之磨耗實驗結果 28
圖5-3單、雙層之TiC50%、TiC70%與商用導軌之磨耗面積圖 30
圖5-4各比例TiC磨耗實驗之摩擦係數與比較 31
圖5-5低碳鋼之金相照片 34
圖5-6 TiC70%與TiC100%被覆層側面之SEM照片 34
圖5-7 TiC70%披覆層側面之EDS測量位置 35

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