Novel Ti-Zr-Co-Cu-M (M = Sn, V, Al) amorphous/nanocrystalline brazing fillers for joining Ti-6Al-4V alloy

被引：8

作者：

Bai, Xueyin ^{[1
]}

Liu, Minqian ^{[1
]}

Pang, Shujie ^{[1
,2
]}

Xiong, Huaping ^{[3
]}

Ren, Xinyu ^{[3
]}

Ren, Haishui ^{[3
]}

Zhang, Tao ^{[1
]}

机构：

[1] Beihang Univ, Sch Mat Sci & Engn, Key Lab Aerosp Mat & Performance, Minist Educ, Beijing 100191, Peoples R China

[2] Beihang Univ, Beijing Adv Innovat Ctr Biomed Engn, Beijing 100191, Peoples R China

[3] Beijing Inst Aeronaut Mat, Welding & Plast Forming Div, Beijing 100095, Peoples R China

来源：

MATERIALS CHARACTERIZATION | 2023年 / 196卷

关键词：

Amorphous brazing filler metal; Brazing; Titanium alloy; Microstructure; Mechanical property; INTERMETALLIC COMPOUND; MECHANICAL-PROPERTIES; JOINTS; MICROSTRUCTURE; DIFFUSION; BEHAVIOR; METAL; GLASS;

D O I：

10.1016/j.matchar.2022.112607

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Novel Ti50Zr30Co11Cu6M3 (M = Sn, V, Al) amorphous/nanocrystalline alloys with low liquidus temperatures of 1145 K - 1171 K were developed as the brazing filler metals for enhancing the mechanical properties of titanium alloy brazed joints. The Ti-6Al-4V (TC4) joints brazed with these novel Ti-based alloy ribbons at 1233 K for 900 s exhibited typical Widmansta center dot tten structure composed of alpha-Ti and beta-Ti, as well as sporadic ultrafine intermetallic compounds. Among these joints, the TC4/Ti-Zr-Co-Cu-Sn/TC4 joint exhibited relatively low tensile shear strength and impact toughness of 461 MPa and 2.6 J/cm2, respectively, due to the concentrated segregation of element Sn in the center of the braze zone. By contrast, the joints brazed with the novel Ti-Zr-Co-Cu-V(Al) fillers showed much improved mechanical properties. The tensile shear strength and impact toughness of the TC4/Ti-Zr-Co-Cu-Al/TC4 joint were enhanced up to 546 MPa and 4.2 J/cm2, respectively, suggesting that the present Ti-Zr-Co-Cu-Al amorphous/nanocrystalline filler is a promising brazing material practically applied for joining titanium alloys.

引用

页数：10

共 39 条

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