Al_2O_3颗粒_耐热钢复合材料的制备及高温磨料磨损性能 2).pdfVIP

复 合 材料学报 21 1 2 2004 A CTA MAT ERIAE COMP OSIT AE SINICA　　　　　　　　　　　　　　　　Vol. 2 1No . 1 February 2004 : 1000-3851( 2004) 01-0056-05 2 3 / Al O 1, 2 2 2 2 王恩泽 , 徐雁平, 鲍崇高, 邢建东 ( 1. , 621002; 2. , 710049) : , , 154200 Lm Ni , , 18 % 52 % / , 900 : , 39 % , 3. 27 : ; ; : 333: T B A FABRICATION OF Al2O3/ HEAT-RESISTANT STEEL COMPOSITE - AND ITS WEAR RESISTANCE AT HIGH TEMPERATURE AND ABRASIVE 1, 2 2 2 2 WANG Enze , XU Yanping , BAO Chonggao , XING Jiandong ( 1. College of Materials S ien e and Engineering , Southwest U niversity of S ien e and T e hnology, Miany ang 621002; 2. S hool of Materials S ien e and Engineering , X ian Jiaot ong University , Xian 7 10049, China) : 2 3 - Abstract Be ause of the spe ial properties of Al O and heat resistant steel at high tempera- ture, the omposite of Al2O3 parti le r einfor ed heat-resistant matrix w ould possess good w ear -re- sistan e at the situation of high temperature and abrasive. After getting the oating on 154200 2 3 , , Lm Al O parti les by CVD method the omposites are made by the va uum infiltration pro ess the parti le volume fra tions ar e hanged from 18% to 52% through adding the heat-r esistant steel parti les into Al2O3 parti les, and then the w ear -r esistan es of the omposites at high tem- perature have been investigated. The r esults show that the w ear -resista