晶化特性的影響
(1. 哈爾濱工業(yè)大學(xué) 材料科學(xué)與工程學(xué)院， 哈爾濱 150001;
2. 哈爾濱工程大學(xué) 航天工程系， 哈爾濱 150001)
摘 要: 利用電弧熔煉及銅模快速鑄造的方法制備Zr41.2Ti13.8Cu12.5Ni10Be22.5大塊非晶合金， 通過電解丙三醇和磷酸的電化學(xué)法向大塊非晶中充入氫。 測試了大塊非晶態(tài)合金中充入氫的含量及體積變化規(guī)律，采用XRD， DSC技術(shù)研究了氫對大塊非晶的晶化特征的影響。 結(jié)果表明： Zr41.2Ti13.8Cu12.5Ni10Be22.5大塊非晶可充入的氫與金屬的摩爾比為0.92， 體積膨脹3.5%; 隨著氫含量的增加， 玻璃轉(zhuǎn)變溫度和晶化溫度稍有提高， 并使結(jié)晶過程不同階段的放熱峰變?nèi)酢?/span>
關(guān)鍵字: 大塊非晶； 氫化； 晶化； 鋯基合金
（1. School of Materials Science and Engineering,
Harbin Institute of Technology,Harbin 150001, China;
2. Department of Astronautics Engineering,
Harbin Engineering University, Harbin 150001, China）
Abstract:The Zr41.2Ti13.8Ni10Cu12.5Be22.5 bulk amorphous alloy was prepared by arc-melting and rapid casting into a copper mould. Hydrogen charging was performed electrochemically in glycerine-phosphoric acid electrolyte. The content of hydrogen charged and the variation of the amorphous samples in the volume were measured. The effects of hydrogen on the crystallization characteristics of the amorphous alloy were studied by means of X-ray diffraction (XRD), differential scanning calorimetry (DSC). The results show that: the mole ratio of the hydrogen charged to the metals is 0.92. The hydrogen makes the metals expand to 3.5% in the volume. With the hydrogen content increasing, both the glass transition temperature and the crystallization temperature slightly increase within certain extent, and some exothermic peaks weaken at different stages of crystallization.
Key words: bulk amorphous; hydrogenation; crystallization; Zr-based ally
