( 江蘇大學(xué) 材料科學(xué)與工程學(xué)院, 鎮(zhèn)江 212013)
摘 要: 研究了在油潤(rùn)滑和酸性介質(zhì)條件下不同相變溫度時(shí)不同組織狀態(tài)的銅鋅鋁形狀記憶合金滾動(dòng)磨損性能，采用電子掃描顯微鏡觀察了磨損表面， 分析了合金的磨損質(zhì)量機(jī)制。 結(jié)果表明： 在油潤(rùn)滑條件下， 不同組織狀態(tài)合金的耐磨性有差異， 室溫下馬氏體狀態(tài)的合金比母相狀態(tài)的合金耐磨，其磨損質(zhì)量機(jī)制主要為磨粒磨損； 在酸性介質(zhì)下， 不同組織狀態(tài)的合金磨損性能相近， 其磨損質(zhì)量機(jī)制以腐蝕磨損和粘著磨損為主。
關(guān)鍵字: 組織狀態(tài)； 介質(zhì)； CuZnAl形狀記憶合金； 滾動(dòng)磨損性能
shape memory alloys
（ School of Materials Science and Engineering,
Jiangsu University, Zhenjiang 212013, China）
Abstract: Rolling wearabilities of different structural state CuZnAl shape memory alloys(SMA) were studied under oil and acid media. The wear surfaces were observed by scanning electron microscope and the wear lost mechanisms were studied.The results show that under oil rolling, the wearabilities of different structural state CuZnAl SMA are difference, martensite phase of CuZnAL（RE）SMA has better wearability than that of β phase. The main wear mechanisms are abrasive wear. Under acid media rolling, wearabilities of different structural state of alloys are nearly same. Corrosion and adhesion are main wear mechanisms.
Key words: structural state; medium; CuZnAl shape memory alloys; rolling wearability
