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研究生:鄭瑞米
研究生(外文):Jui-Mi Cheng
論文名稱:鎳基自熔合金重熔處理塗層耐磨性之研究
論文名稱(外文):Study on the Wear Resistance of Ni-Base Self-Fluxing Alloy Remelt Coating
指導教授:曾義豐
指導教授(外文):Yih-Fong Tzeng
學位類別:碩士
校院名稱:國立高雄第一科技大學
系所名稱:機械與自動化工程所
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2004
畢業學年度:92
語文別:中文
論文頁數:85
中文關鍵詞:鎳基自熔合金磨料磨耗重熔
外文關鍵詞:Abrasive wearRemelt ingNi-Base Self-Fluxing Alloy
相關次數:
  • 被引用被引用:2
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  • 下載下載:27
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本文以鎳基自熔合金粉末為基礎與各別之燒結型及團聚型WC-Co粉末,依不同重量百分比添加於其中,經過真空重熔處理技術製作之塗層,為探討不同成份及不同重量百分比例粉末塗層之耐磨耗性能,對鎳基自熔合金粉末與添加各類型之WC-Co粉末、塗層進行SEM 分析,並對塗層再作X光繞射分析、EDS分析、微硬度試驗、乾砂磨料磨耗試驗、各種角度之沖蝕試驗及高溫滑移磨耗試驗等。試驗結果顯示,在塗層的耐磨料磨耗性能方面,添加WC-Co粉末比未添加之鎳基自熔合金塗層其耐磨料磨耗性能較佳。針對添加WC-Co粉末比例而言,兩種型態之粉末,添加WC-Co粉末比例愈高其磨耗量愈低,添加燒結型WC-Co粉末塗層比團聚型WC-Co粉末塗層其磨料磨耗量較低,以添加35%燒結型碳化鎢-鈷粉末塗層其耐磨料磨耗性能最佳。在沖蝕磨耗試驗方面,在30°沖蝕角度時,三種壓力沖蝕下以鎳基自熔合金塗層O1沖蝕率較大,添加二種型式WC-Co粉末塗層均有助於耐沖蝕磨耗,以添加35﹪團聚型WC-Co粉末塗層C3沖蝕率最低。在75°沖蝕角度時,沖蝕壓力720psi下添加二種型式WC-Co粉末塗層並不耐沖蝕磨耗,添加量愈高沖蝕磨耗率愈大,以鎳基自熔合金塗層O1沖蝕率最低即耐沖蝕磨耗性最佳。而在滑移磨耗試驗方面,在室溫長時間的磨耗時,添加WC-Co有較穩定的耐滑移磨耗能力,以添加35﹪團聚型WC-Co粉末塗層C3其耐滑移磨耗能力最佳。在高溫450℃時添加團聚型WC-Co粉末塗層比添加燒結型WC-Co粉末塗層其滑移磨耗量較低,以添加15﹪團聚型WC-Co粉末塗層其耐滑移磨耗能力最佳。
This text depends on Ni-base self-fluxing alloy powder that blends with respective sintered and agglomerated WC-Co powder by adding according to different weight ratio, through the coating of vacuum furnace with remelting processing technology. To research abrasive resistance of the coating with different composition and different weight ratio powder which analyzing SEM of Ni-base self-fluxing alloy powder with adding each kind WC-Co powder and coating doing analysis of SEM; and then the coating making analysis of XRD, EDS, the micro hard test, the dry sand abrasive test, each kinds angles erosion test and the high temperature slipping abrasive test and so on again and analysis of microscope on the surface of after abrasive on coating is done. The result of test shows that shows on the aspect dry sand abrasive, abrasive resistance of Ni-base self-fluxing alloy on adding WC-Co powder is better than without adding WC-Co powder. For the ratio of adding WC-Co powder, powder of two type, which get lower abrasive amount on the ratio of adding get higher WC-Co powder; it gets abrasive amount on adding sintered WC-Co powder layer lower than adding agglomerated WC-Co powder layer. It is the most best abrasive resistance on adding 35percent sintered WC-Co powder layer. On the test of erosion abrasion, at erosion angle of 30 degree, the erosion of at three kinds pressures, it gets lager erosion ratio on the Ni-base self-fluxing alloy layers, it will be useful erosion wear resistance adding two kind type WC-Co powder layers. It gets the lowest erosion rate on adding 35percent agglomerated WC-Co powder layer C3. At erosion angle of 75 degree, the 720psi erosion pressure, it is not erosion wear resistance adding two kinds types WC-Co powder layers, the higher adding amount the larger erosion abrasive ratio, it gets the lowest erosion ratio by Ni-base self-fluxing alloy layers O1. On the test slipping abrasive, at the normal temperature the abrasive for long time. It has capability slipping abrasive for more stabilized to add WC-Co powder, it gets better capability slipping abrasive resistance on adding 35percent agglomerated WC-Co powder layer C3. At 450℃ high temperature, it has slipping abrasive amount on adding agglomerated WC-Co powder layers lower than adding sintered WC-Co powder layers, it gets better capability slipping abrasive resistance on adding 15% agglomerated WC-Co powder layer C3 .
目錄
中文摘要--------------------------------------------------i
英文摘要-------------------------------------------------ii
誌謝-----------------------------------------------------iv
目錄------------------------------------------------------v
表目錄--------------------------------------------------vii
圖目錄-------------------------------------------------viii
第一章 緒論-----------------------------------------------1
1.1 研究背景------------------------------------------1
1.2 研究動機------------------------------------------2
第二章 文獻回顧---------- --------------------------------4
2.1 塗層合金粉末--------------------------------------4
2.2 自熔合金重熔處理----------------------------------5
2.2.1 原理------------------------------------------5
2.2.2 硬面層特性------------------------------------7
2.2.3 燒結理論與機構--------------------------------9
2.3 磨耗理論-----------------------------------------11
第三章 實驗方法與步驟------------------------------------18
3.1 實驗合金粉未的選用-------------------------------18
3.2 實驗試片製作-------------------------------------20
3.2.1 試片基材-------------------------------------20
3.2.2 重熔處理設備及設定參數-----------------------21
3.3 磨耗試驗-----------------------------------------22
3.3.1 沖蝕磨耗試驗---------------------------------22
3.3.2 磨料磨耗試驗---------------------------------25
3.3.3 高溫滑移磨耗試驗-----------------------------27
3.4 實驗分析-----------------------------------------29
第四章 實驗結果與討論------------------------------------30
4.1 重熔塗層粉末分析---------------------------------30
4.2 真空重熔試片觀察---------------------------------33
4.3 硬面層表面硬度試驗結果分析-----------------------35
4.4 硬面層微結構組織分析-----------------------------35
4.4.1 硬面層表面XRD分析----------------------------35
4.4.2 硬面層表面SEM/EDS分析------------------------38
4.5 硬面層界面分析-----------------------------------49
4.5.1 硬面層界面SEM/EDS分析------------------------49
4.5.2 硬面層界面微結構金相圖分析-------------------54
4.6 硬面層沖蝕試驗結果分析---------------------------57
4.6.1塑性材料和脆性材料的沖蝕特點------------------57
4.6.2 鎳基自熔合金塗層高壓沖蝕特點-----------------58
4.6.3 B1塗層和C1塗層高壓沖蝕特點-------------------58
4.6.4 B2塗層和C2塗層高壓沖蝕特點-------------------59
4.6.5 B3塗層和C3塗層高壓沖蝕特點-------------------59
4.7 硬面層磨料磨耗試驗結果分析-----------------------65
4.8 硬面層高溫滑移磨耗試驗結果分析-------------------73
4.8.1塗層磨耗量受溫度之影響------------------------73
4.8.2各塗層與磨耗量的關係--------------------------73
第五章 結論--------------------------------------------- 81
參考文獻-------------------------------------------------83
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