文章信息/Info

Title:

Research progress on joining of ceramic reinforced titanium matrix composites

作者:

許文龍12; 張相召1; 楊露瑤1; 劉桂武1

(1. 江蘇大學(xué)材料科學(xué)與工程學(xué)院，江蘇 鎮(zhèn)江 212013)
(2. 興化市精密鑄鍛造產(chǎn)業(yè)研究院，江蘇 興化 225714）

Author(s):

XU Wenlong12; ZHANG Xiangzhao1; YANG Luyao1; LIU Guiwu1

(1. School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China)
(2. Research Institute of Precision Casting Forging Industry, Xinghua 225714, China)

關(guān)鍵詞:

陶瓷增強鈦基復(fù)合材料; 熔化焊; 釬焊; 固相擴散焊; 界面行為; 力學(xué)性能

Keywords:

ceramic-reinforced titanium matrix composites;  fusion welding;  brazing;  diffusion bonding;  interfacial behavior;  mechanical properties

DOI:

10.7502/j.issn.1674-3962.201812010

文獻標志碼:

A

摘要:

陶瓷增強鈦基復(fù)合材料（CTMCs）兼有高的比強度、比剛度及良好的耐磨性和抗高溫氧化性，對其進行有效焊接，有助于加強其在航空航天、機械電子和醫(yī)療器械等領(lǐng)域的廣泛應(yīng)用。綜述了CTMCs熔化焊、釬焊和固相擴散焊，以及這3種焊接的國內(nèi)外研究進展，著重回顧了熔化焊焊縫增強體的分布特征、釬料/母材界面行為及擴散焊焊縫孔隙度與接頭力學(xué)性能之間的關(guān)系。并結(jié)合具體的焊接工藝，歸納了熔化焊電極移動速度、釬焊和固相擴散焊焊接溫度以及保溫時間對接頭界面行為和力學(xué)性能的影響規(guī)律。最后，認為需要加強CTMCs的異材連接、界面反應(yīng)層形成的熱力學(xué)和動力學(xué)，以及界面微結(jié)構(gòu)與接頭服役性能（如強度和耐高溫性）的關(guān)聯(lián)性研究。

Abstract:

Ceramic reinforced titanium matrix composites (CTMCs) possess high specific strength and stiffness, good wear and high temperature oxidation resistances. The effective joining of CTMCs can contribute to their applications in the fields of aerospace, machinery, electronics, medical apparatus, and instruments, etc. In this paper, the research progresses on fusion welding, brazing and solid phase diffusion bonding of CTMCs are reviewed. The distribution characteristics of reinforcement in the fusion welding seam, the interfacial behavior of brazing filler/base material interface, the relationship between the void ratio at the diffusion-bonding interface and joints mechanical properties are emphatically concerned. Moreover, the influences of processing parameters (such as fusion welding electrode moving speed, joining temperature and holding time of brazing and diffusion bonding) on the interfacial behavior and joint mechanical properties are summarized by combining with the respective joining processes. Finally, we consider that the related investigations on joining of CTMCs, thermodynamics, and dynamics of formation of interfacial reaction layer, the relationship between interfacial microstructures and joint performances (strength and high temperature resistance) need to be strengthened.