Processing, microstructure and mechanical properties of vacuum-brazed Al2O3/Ti6Al4V joints

被引：38

作者：

Cao, J. ^{[1
,2
]}

Zheng, Z. J. ^{[1
]}

Wu, L. Z. ^{[2
]}

Qi, J. L. ^{[1
]}

Wang, Z. P. ^{[1
]}

Feng, J. C. ^{[1
]}

机构：

[1] Harbin Inst Technol, State Key Lab Adv Welding Prod Technol, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, Ctr Composite Mat & Struct, Harbin 150001, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2012年 / 535卷

基金：

中国国家自然科学基金;

关键词：

Brazing; Alumina; Titanium; Microstructure; Mechanical properties; INFRARED BRAZING CU; INTERFACIAL REACTIONS; SINTERED ALUMINA; RESIDUAL-STRESS; ALLOY; TI; TITANIUM; COPPER; INTERLAYER; SYSTEM;

D O I：

10.1016/j.msea.2011.12.042

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The vacuum brazing of alumina ceramic to Ti6Al4V alloy was performed using Ag-Cu eutectic filler metal. The microstructure at the ceramic-metal interfaces and the mechanical properties of the brazed joint were examined. The microstructure of the joint brazed at 825 degrees C for 10 min consisted of alpha-beta Ti, Ti2Cu, TiCu, Ti3Cu4, Ag-based solid solution and Ti-4(Cu,Al)(2)O phases starting from Ti6Al4V to alumina substrate. The brazing parameters had a strong influence on the microstructure and shear strength of the joint. The brittle fracture mainly propagated in the alumina substrate. The highest shear strength was obtained when the joint was brazed at 825 degrees C for 10 min. When a Cu foil was sandwiched between two Ag-Cu brazing foils, the microstructure of the joint changed greatly and the shear strength increased correspondingly. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：62 / 67

页数：6

共 31 条

[1] Joining of partially sintered alumina to alumina, titanium, Hastealloy and C-SiC composite using Ag-Cu brazes [J].

Asthana, R. ;

Singh, M. .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2008, 28 (03) :617-631

[2] MICROSTRUCTURAL STUDY OF THE BRAZED JOINT BETWEEN ALUMINA AND TI-6AL-4V ALLOY [J].

BARBIER, F ;

PEYTOUR, C ;

REVCOLEVSCHI, A .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1990, 73 (06) :1582-1586

[3] Al2O3/Ti6Al4V diffusion bonding joints using Ag-Cu interlayer [J].

Barrena, M. I. ;

Matesanz, L. ;

Gomez de Salazar, J. M. .

MATERIALS CHARACTERIZATION, 2009, 60 (11) :1263-1267

[4] RESIDUAL-STRESS CRACKING OF METAL CERAMIC BONDS [J].

BARTLETT, A ;

EVANS, AG ;

RUHLE, M .

ACTA METALLURGICA ET MATERIALIA, 1991, 39 (07) :1579-1585

[5] Infrared brazing of Ti-6Al-4V using two silver-based braze alloys [J].

Du, Y. C. ;

Shiue, R. K. .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2009, 209 (11) :5161-5166

[6] Solid state diffusion bonding of titanium to steel using a copper base alloy as interlayer [J].

Elrefaey, A. ;

Tillmann, W. .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2009, 209 (05) :2746-2752

[7] Joining of alumina ceramics to metals [J].

Hafez, KM ;

El-Sayed, MH ;

Naka, M .

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2005, 10 (02) :125-130

[8] Investigation of bonding strength and sealing behavior of aluminum/stainless steel bonded at room temperature [J].

Howlader, M. M. R. ;

Kaga, T. ;

Suga, T. .

VACUUM, 2010, 84 (11) :1334-1340

[9] Characterization of interface of Al2O3-304 stainless steel braze joint [J].

Kar, Abhijit ;

Mandal, Sudipta ;

Venkateswarlu, K. ;

Ray, Ajoy Kumar .

MATERIALS CHARACTERIZATION, 2007, 58 (06) :555-562

[10] Effect of interfacial thickness and residual stress on the mechanical property of the alumina-stainless steel braze joint interface [J].

Kar, Abhijit ;

Ghosh, Mainak ;

Ray, Ashok Kumar ;

Ray, Ajoy Kumar .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 498 (1-2) :283-288

← 1 2 3 4 →