摘要
研究了不同锰含量的Al2O3颗粒增强铝锰基复合材料在不同磨蚀介质条件下的磨损特性。结果表明:Al2O3颗粒增强铝锰基复合材料由锰在铝中的固溶体和在其上分布的铝锰化合物MnAl6和A111Mn4及δ-Al2O3颗粒组成;随着锰含量的增加,试样中硬而脆的MnAl6和A111Mn4含量不断增加,该复合材料的磨损量不断减小;在加有磨粒的高矿化度水摩擦条件下,由于磨粒磨损的作用,试样的磨损比其在未加磨粒的摩擦条件下严重,且磨损量之比平均达到2.8∶1。
The friction and wear characteristics of A1-Mn composite materials reinforced by A1203 particles under different conditions were researched. The results show that A1-Mn-based composite enhanced by A1203 particles are composed by manganese in aluminum solid solution and the aluminum-manganese compounds Mnm16 and A1HMn4 and o-A12O3 particles on its distribution. With the increase of manganese content, the hard and brittle MnA16 and Al11Mn4 content keeps increasing, and the wear extent of A1-Mn-based composites keeps reducing. With high salinity water added in abrasive friction, owing to the effects the abrasive wear, the abrasion level is severer than the samples without adding abrasive wear, and the ratio of the average wear amount reaches 2.8 ： 1.
出处
《热加工工艺》
CSCD
北大核心
2011年第24期124-126,共3页
Hot Working Technology
基金
国家自然科学基金资助项目(50861008)
关键词
铝锰基复合材料
干摩擦磨损
腐蚀摩擦磨损
磨痕形貌
A1-Mn-based composite
dry friction and wear
friction and wear corrosion
wear scar shape
