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Be/CuCrZr合金擴(kuò)散連接的界面行為
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Study on Interface Behavior of Be/CuCrZr Alloy by Diffusion Bonding
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    摘要:

    在不同表面粗糙度的Be側(cè)鍍Ti/Cu中間層，采用熱等靜壓技術(shù)將鈹與CuCrZr合金進(jìn)行擴(kuò)散連接。通過AES、SEM(EDS)、室溫剪切試驗(yàn)和XRD等分析其鍍層形貌及成分、界面特性與相結(jié)構(gòu)。結(jié)果表明：9 μm Ti、35 μm Cu鍍層帶征較為均勻，影響擴(kuò)散連接強(qiáng)度的元素較少，采用雙靶單側(cè)鍍復(fù)合膜的工藝有利于減少Ti鍍層的氧化；界面剪切強(qiáng)度明顯提高，最高可達(dá)243 MPa，Be表面粗糙度的不同對(duì)強(qiáng)度影響不明顯；Be-Ti連接強(qiáng)度高，剪切斷裂均發(fā)生在Cu鍍層。

    Abstract:

    Ti and Cu were used as interlayer materials, and the diffusion bonding of Be/CuCrZr alloys were carried out onto Be side by hot isostatic pressing. The four Be samples had different surface roughness. The coating, interface behavior and microstructure of the diffusion bonded alloys were studied by AES, SEM (EDS), room-temperature shear test and XRD. The results show that the Ti coating band (9 μm thickness) and the Cu coating band (35 μm thickness) are homogeneous, and few harmful ingredients are observed. Dual-target and single-side coating technology is favorable to reduce the Ti-coating oxidation. Shearing strength of the Be/CuCrZr interface is increased significantly, with the highest up to 243 MPa. But effect of the different surface roughness on the shearing strength is not obvious. The bonding strength of Be-Ti is high, and all the shear fracture of the samples occurs in the Cu layer.

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葉林森,諶繼明,謝東華,王錫勝,許澤金,陳 偉. Be/CuCrZr合金擴(kuò)散連接的界面行為[J].稀有金屬材料與工程,2010,39(1):122~125.[Ye Linsen, Chen Jiming, Xie Donghua, Wang Xisheng, Xu Zejin, Chen Wei. Study on Interface Behavior of Be/CuCrZr Alloy by Diffusion Bonding[J]. Rare Metal Materials and Engineering,2010,39(1):122~125.]
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  • 收稿日期:2009-01-10
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