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Mg97Zn1Y2合金的摩擦磨損性能研究
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國家十五科技攻關(guān)項(xiàng)目（2001BA311A07-3）


Investigation of Friction and Wear Behavior of Mg97Zn1Y2 Alloy
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    摘要:

    研究了鑄態(tài)Mg97Zn1Y2合金的室溫、高溫力學(xué)性能和干摩擦條件下摩擦磨損行為，并與AZ91合金進(jìn)行了對比。結(jié)果表明：室溫下AZ91合金的屈服強(qiáng)度要高于Mg97Zn1Y2合金，但高溫下Mg97Zn1Y2合金較AZ91合金表現(xiàn)出更好的熱強(qiáng)性，當(dāng)溫度超過150 ℃時(shí)，AZ91合金的屈服強(qiáng)度急劇下降，Mg97Zn1Y2合金則下降較少。Mg97Zn1Y2合金由輕微磨損向嚴(yán)重磨損的轉(zhuǎn)變點(diǎn)明顯滯后于AZ91合金，相同載荷范圍內(nèi)Mg97Zn1Y2合金磨損表面的溫升要低于AZ91合金，其原因是Mg97Zn1Y2合金中的金

    Abstract:

    The mechanical properties at room and elevated temperature as well as the friction wear behavior under dry sliding condition for as-cast Mg97Zn1Y2 alloy were investigated, and compared with that of AZ91 alloy. The results show that the yield strength of AZ91 alloy is higher than that of Mg97Zn1Y2 alloy at room temperature, but Mg97Zn1Y2 alloy exhibits better thermal stability at the evaluated temperature; as the temperature is above 150 ℃, the yield strength of AZ91 alloy decreases sharply, but that of Mg97Zn1Y2 alloy decreases a little. The transition point from mild wear to severe wear for Mg97Zn1Y2 alloy obviously lags that of AZ91 alloy. In the same load range, the bulk temperature rise of wear surface of the Mg97Zn1Y2 alloy is also lower than that of AZ91 alloy. The reason is that the intermetallic compound Mg12YZn in Mg97Zn1Y2 alloy possesses better thermal stability than Mg17Al12 phase in AZ91 alloy.

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陳春梅,安 健,李榮廣,王柏樹. Mg97Zn1Y2合金的摩擦磨損性能研究[J].稀有金屬材料與工程,2009,38(8):1422~1425.[Chen Chunmei, An Jian, Li Rongguang, Wang Baishu. Investigation of Friction and Wear Behavior of Mg97Zn1Y2 Alloy[J]. Rare Metal Materials and Engineering,2009,38(8):1422~1425.]
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  • 收稿日期:2008-07-28
  • 最后修改日期:2009-05-10
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