NONEQUILIBRIUM SYNTHESIS OF NI-AL-SI ALLOYS BY LASER PROCESSING
In the present work, three kinds of alloys with nominal compositions (at.％) of Ni-25Al, Ni-15Al-10Si and Ni-5Al-20Si have been fabricated successfully by a 10 kW continuous wave CO2 laser under optimum processing conditions. X-ray diffraction (XRD) results showed that the phases of all alloys consisted mainly of Ni-Al type intermetallic compounds. The microstructures of three alloys were characterized using scanning electron microscopy (SEM). The hardness was measured on a HX-1000TM Vickers microhardness tester. The average hardness of Ni-15Al-10Si alloy was the highest value of 914 HV compared with Ni-25Al and Ni-5Al-20Si alloys.
Yufeng Zheng Yaoning Sun Ding Fan Min Zheng Jianbin Zhang
State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology
国际会议
第三届太平洋国际激光与光学应用会议(PICALO 2008)
北京
英文
870-874
2008-04-16（万方平台首次上网日期，不代表论文的发表时间）