本論文主要探討塊狀金屬玻璃(Cu42Zr42Al8Ag8)99.5Si0.5合金系統的磨潤行為，並以熱處理硬化後硬度相當的S45C中碳鋼做為比較。磨耗試片分別為鑄態(Cu42Zr42Al8Ag8)99.5Si0.5塊狀金屬玻璃(以下簡稱鑄態BMG)、743K退火30分鐘(Cu42Zr42Al8Ag8)99.5Si0.5塊狀金屬玻璃(以下簡稱退火後BMG)及熱處理硬化的S45C中碳鋼(以下簡稱熱處理後S45C)，以Cameron-Plint TE77往復式磨耗試驗機評估其磨潤性能。試片接觸方式為圓柱對平板(cylinder-on-plate)的線接觸模式，分別於不同滑動速度(0.088m/s、0.176m/s)、不同荷重(50N、100N)及不同狀態(乾摩擦、加水)下，評估三種試片之磨潤性能。此外，使用MN基礎油潤滑的磨耗試驗，則用以比較不同潤滑劑對試片的影響。磨耗試驗結束後，以掃描式電子顯微鏡(SEM)觀察試片磨耗形貌，能量散佈光譜儀(EDS)用來檢測局部區域之元素成份。
試驗結果顯示，乾磨耗時鑄態BMG與退火後BMG以剝層磨耗為主，熱處理後S45C則主要為黏著磨耗；水潤滑狀態下，三者皆以刮磨磨耗為主。此外，退火後BMG由於硬度較鑄態BMG增加，因而有效提升BMG的耐磨耗能力；鑄態BMG和熱處理後S45C雖然硬度相當，但是以熱處理後S45C的耐磨耗能力較為優異。

In the thesis, the tribological performances of BMG (Cu42Zr42Al8Ag8)99.5Si0.5 and middle carbon steel after heat treatment (S45C-H.T.) are discussed. Wear test specimens are as-cast BMG, BMG annealing at 743K for 30 minutes and S45C after heat treatment. Wear tests are performed under cylinder-on-plate contact type during different sliding speeds, loadings and lubricant conditions by Cameron-Plint TE77 reciprocal wear machine. After wear tests, the morphology of wear specimens are observed by scanning electron microscopy (SEM), and identified element components in local regions by energy dispersive spectrum (EDS).
Results show that as-cast BMG and annealing BMG are mainly delamination wear under dry wear test, and S45C-H.T. are adhesive wear; when under water lubrication state, three of them are maily abrasive wear. In addition, annealing BMG has a better wear resistance ability due to hardness value rising; although the hardness value of as-cast BMG is comparable with S45C(H.T.), the wear resistance ability is poorer.

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