本文是以鎢極惰氣遮護電弧銲覆方式，將預混摻之鐵及鉬金屬粉末，碳粉末、碳化鈦陶瓷粉末，銲覆於S45C中碳鋼基材上。藉由金相組織分析、硬度測量、X光繞射等分析銲覆層組織，並進行環對盤乾摩擦磨耗試驗，評估銲覆層的常溫及高溫之抗磨耗性能，再利用掃描式電子顯微鏡觀察磨耗表面。實驗結果顯示：經鎢極惰氣遮護電弧銲覆銲覆後之銲覆層，合金化塗層中主要為樹枝狀碳化物之凝固組織，主要為M2C及M6C。當預佈塗含碳量提高，C/M莫爾比38.9時，時會有MC相產生。高溫450℃下進行磨耗測試，其環對盤滑動摩擦係數約0.3，每百萬牛頓-米之耗損量為 0.67毫克。實驗中並發現，當有MC相產生會使抗磨耗性質變差，且加入碳化鈦粉末之銲覆層，對耐磨耗性質並未改善。

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目錄
壹、緒論
1-1前言………………………………………………1
1-2文獻回顧…………………………………………3
1-2-1硬面處理方式………………………………………3
1-2-2 磨耗機構……………………………………………5
1-2-3銲覆層合金 ………………………………………7
1-2-4高溫環境下的潤滑機制……………………………9
1-3研究動機與目的……………………………………12
貳、實驗方法與步驟………………………………………14
2-1實驗材料準備………………………………………14
2-2氬銲銲覆處理………………………………………14
2-3 掃瞄式電子顯微鏡(SEM)觀察……………………15
2-4磨耗測試……………………………………………15
2-5硬度試驗……………………………………………16
2-6 X光繞射實驗（XRD）……………………………16
參、結果與討論……………………………………………17
3-1銲覆後試片外觀觀察………………………………17
3-2金相組織觀察………………………………………18
3-3平面硬度量測………………………………………21
3-4 X光繞射分析………………………………………22
3-5 乾摩擦滑動磨耗損失比較………………………23
3-6 潤滑特性比較………………………………………25
3-7磨耗面SEM觀察………………………………………27
3-8 晶體結構分析………………………………………28
肆、結論結論與未來研究方向……………………………30
伍、參考文獻…………………………………………………32
陸、表………………………………………………………36
柒、圖…………………………………………………………41

伍、參考文獻

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