研究AZ91D和AM60B两种镁合金在不同环境温度下的磨损行为.结果表明,两种镁合金在不同的环境温度下随着载荷的增大,磨损率的变化规律相似,都出现从轻微磨损到严重磨损的磨损转变,且临界转变载荷随着环境温度的升高而提前.在200℃低载荷时,出现超低磨损率的现象,归因于厚的机械混合层的形成.足够的基体强度能有效的发挥机械混合层的作用,但是摩擦热和高温会使基体软化,且变形过程中β相会被打碎形成细小的颗粒,使基体强度降低.低温下,严重磨损是机械混合层和基体共同剥落的结果,高温时是磨损表面严重塑性变形和塑性屈服.
参考文献
| [1] | 马颖,任峻,陈体军,李元东,李炳.AZ91D镁合金的摩擦磨损行为及其机理探讨[J].兰州理工大学学报,2006(01):33-36. |
| [2] | 赵旭,黄维刚,郑天群,王燕.镁合金AZ31的磨损性能研究[J].材料工程,2008(05):1-3. |
| [3] | 刘艳改,熊守美,黄朝晖,房明浩,袁建路.合金元素对AM60B镁合金性能的影响[J].材料科学与工艺,2008(04):511-514. |
| [4] | MORDIKE B L;EBERT T .Magnesium properties-applicationspotentials[J].Materials Science and Engineering,2001,A302:37-45. |
| [5] | H. Chen;A. T. Alpas .Sliding wear map for the magnesium alloy Mg-9Al-0.9Zn (AZ91)[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2000(1/2):106-116. |
| [6] | S. Das;A. T. Morales;A. T. Alpas .Microstructural evolution during high temperature sliding wear of Mg-3% Al-1% Zn (AZ31) alloy[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2010(1/2):94-103. |
| [7] | NAING N A;WEI Z;LENNIE E N .Wear behavior of AZ91D alloy at low speeds[J].Wear,2008,265:780-786. |
| [8] | J. An;R. G. Li;Y. Lu;C. M. Chen;Y. Xu;X. Chen;L. M. Wang .Dry sliding wear behavior of magnesium alloys[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2008(1/2):97-104. |
| [9] | LING F F;SAIBEL E.Thermal aspects of galling of dry metallic surface in sliding contact[J].Wear,1957(01):80-91. |
| [10] | BOWDEN F P;TABOR D.The friction and lubrication of solids.Part Ⅱ[M].London,Oxford:Oxford University Press,1964:97. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%