The wetting behaviors of Ti32. 8 Zr30. 2 Ni5. 3 Cu9 Be22. 7 melt on Ti61. 5 Zr36. 4 Cu2. 1 sub-strate have been studied under continuous heating and isothermal condition for 30min. The results show that the melt wets the substrate well. The microstructure in the melt varies at different temperatures,which results in the difference in the wetting behavior. The spreading of the drop can be divided into two stages under continuous heating. The wetting kinetics al-so shows two stages of rapid spreading and equilibrium under isothermal condition. The wet-ting process is finished within about 7 min in the temperature range of 750～850℃. Howev-er,the drop keeps stable at 700℃ because of the specific microstructure in the melt.%用座滴法研究了Ti32.8 Zr30.2 Ni5.3 Cu9 Be22.7合金熔滴与Ti61.5 Zr36.4 Cu2.1基片在连续升温和不同温度下保温30 min的润湿行为,结果表明二者具有良好的润湿性.润湿温度影响着熔滴熔体的结构,进而造成了不同温度区间内Ti32.8 Zr30.2 Ni5.3 Cu9 Be22.7合金在Ti61.5 Zr36.4 Cu2.1基片上润湿行为的差异.在连续升温过程中,由于熔体结构发生变化,熔滴铺展分为一次铺展和二次铺展两个过程.在750～850℃保温时,润湿动力学曲线分为快速减小和稳态两个阶段,润湿过程大约在7 min左右完成.700℃下受到熔滴熔体结构的影响,保温过程中熔滴不继续铺展.
展开▼
