Effect of Co addition on the glass-forming ability and mechanical properties of Ti-Zr-Be-Cu-Co bulk amorphous alloys
The effect of Co substitution for Be on the glass-forming ability and mechanical properties was investigated in Ti35Zr30Be27.5-xCu7.5Cox (x=0,3.5,7.5,11.5 at.%) alloys by using X-ray diffractometry (XRD),differential scanning calorimetry (DSC),high-resolution transmission electron microscopy (HRTEM) and compression test.With the substitution of Co for Be,glass-forming ability (GFA) is significantly enhanced and fully amorphous rods with a diameter of up to 12 mm were produced in the alloy with 3.5 and 7.5 at.% Co.The Ti35Zr30Be24Cu7.5Co3.5 bulk glassy alloy exhibits good plasticity of 4% during compressive applied load at ambient temperature in conjunction with distinct yield strain of 2% and high fracture strength of 2196 MPa.The effect of the addition of Co on the structure and deformation behavior of the Ti35Zr30Be27.5-xCu7.5Cox (x=0,3.5,7.5,11.5 at.%) alloys is discussed.
Bulk amorphous alloys Glass-forming ability Mechanical properties Thermal stability
Zhongyuan Suo Yanling Song Keqiang Qiu
College of Mechanical and Electrical Engineering,Jilin Institute of Chemical Technology,45 Chengde S Jilin Vocational College of Industry and Technology,15 West Hengshan Road,Jilin 132013,P R China School of Materials Science and Engineering,Shenyang University of Technology,111 West Shenliao Road
国际会议
沈阳
英文
203-207
2012-09-07（万方平台首次上网日期，不代表论文的发表时间）