The Ti 51.44 Zr 16.26 Cu 30 Sn 2.3 (at%) amorphous filler alloy in a ribbon form was prepared by melt spinning. The Ti–6Al–4V alloy was brazed in vacuum furnace by using the Ti 51.44 Zr 16.26 Cu 30 Sn 2.3 amorphous filler alloy. The effects of brazing temperature and holding time on the interfacial microstructure and mechanical properties of the Ti–6Al–4V brazed joints were investigated. The brazed joints are composed of α-Ti, β-Ti, and (Ti, Zr) 2 Cu phases. The shear strength of the joints increases with brazing temperature increasing from 1153 to 1193 K and holding time from 10 to 15 min, while decreases with brazing temperature and time further increasing. Low temperature brazing results in the formation of microcracks and voids in the seams, which are harmful for the shear strength of the joints. In the joint brazed at 1193 K for 15 min, a fine α + β Widmanstätten structure beneficial to the mechanical property is formed, and the joint exhibits relatively high joint strength of 180 MPa.

中文翻译：

---

Ti-Zr-Cu-Sn非晶钎料钎焊TC4接头的显微组织和力学性能

通过熔融纺丝制备带状的Ti 51.44 Zr 16.26 Cu 30 Sn 2.3 (at%)非晶填充合金。使用 Ti 51.44 Zr 16.26 Cu 30 Sn 2.3 非晶填充合金在真空炉中钎焊 Ti-6Al-4V 合金。研究了钎焊温度和保温时间对 Ti-6Al-4V 钎焊接头界面组织和力学性能的影响。钎焊接头由α-Ti、β-Ti和(Ti, Zr) 2 Cu相组成。接头的剪切强度随着钎焊温度从 1153 K 增加到 1193 K 和保温时间从 10 到 15 分钟而增加，而随着钎焊温度和时间的进一步增加而降低。低温钎焊会导致接缝处形成微裂纹和空隙，这对接头的剪切强度是有害的。在 1193 K 下钎焊 15 分钟的接头中，