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| Ti-Zr-Be-Cu-Co块体非晶合金形成能力及其耐蚀性的研究 | |
| 引用本文： | 宋艳玲,索忠源,马长捷,李丽娜.Ti-Zr-Be-Cu-Co块体非晶合金形成能力及其耐蚀性的研究[J].稀有金属材料与工程,2013,42(8):2127-2130. |
| 作者姓名： | 宋艳玲 索忠源 马长捷 李丽娜 |
| 作者单位： | 1. 桂林电子科技大学,广西桂林,541004 2. 桂林电子科技大学,广西桂林541004;广西信息材料重点实验室,广西桂林541004 3. 河北钢铁集团石家庄钢铁有限责任公司,河北石家庄,050031 |
| 基金项目： | 国家自然科学基金，广西自然科学基金，广西信息材料重点实验室基金 |
| 摘 要： | 采用磁控溅射法制备Dyx(Co21Cu79)100-x(x=0,4,8,9,12,14)颗粒膜.XRD结果表明:添加稀土元素Dy将促进CoCu过饱和固溶体分解,此外Dy元素还具有细化晶粒的作用.磁电阻测试发现:随着Dy含量的增加,Dyx(Co21Cu79)100-x薄膜的电阻逐渐增大,而薄膜的巨磁电阻(GMR)值先升后降,当退火温度Ta=425℃时,Dy4(Co21Cu79)96薄膜的GMR值达到最大,为-4.68％.薄膜的磁滞回线表明:矫顽力Hc随退火温度的升高逐渐增大,随Dy含量的增加,却单调减小. |
| 关 键 词： | GMR效应 Co-Cu颗粒膜 掺杂 热处理 磁性能 |
| 收稿时间： | 2012/10/18 0:00:00 |
Glass Forming Ability and Corrosion Behavior of Ti-Zr-Be-Cu-Co Bulk Metallic Glass |
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| Song Yanling,Suo Zhongyuan,Ma Changjie and Li Lina.Glass Forming Ability and Corrosion Behavior of Ti-Zr-Be-Cu-Co Bulk Metallic Glass[J].Rare Metal Materials and Engineering,2013,42(8):2127-2130. | |
| Authors: | Song Yanling Suo Zhongyuan Ma Changjie and Li Lina |
| Affiliation: | Guilin University of Electronic Technology, Guilin 541004, China;Guilin University of Electronic Technology, Guilin 541004, China;Guilin University of Electronic Technology, Guilin 541004, China;Guilin University of Electronic Technology, Guilin 541004, China;Guilin University of Electronic Technology, Guilin 541004, China;Guilin University of Electronic Technology, Guilin 541004, China;Shijiazhuang Iron & Steel Co., LTD, Hebei Iron & Steel Group, Shijiazhang 050031, China;Guilin University of Electronic Technology, Guilin 541004, China |
| Abstract: | Ti35Zr30Be24Cu7.5Co3.5 bulk amorphous alloy was prepared by a copper mold casting method. The structure and thermal stability of the bulk amorphous alloy was investigated by means of X-ray diffractometry (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM) and differential scanning calorimetry (DSC). Its corrosion resistance was evaluated by conducting electrochemical corrosion test and variable temperature weightless corrosion test. Results show that the as-prepared Ti35Zr30Be24Cu7.5Co3.5 alloy exhibits an amorphous structure with at least 12 mm diameter, and has a high glass forming ability and a good thermal stability. The corrosion behaviors of Ti35Zr30Be24Cu7.5Co3.5 bulk amorphous alloy and the 304 stainless steel were investigated by an electrochemical method in 0.6 mol/L NaC1 solution and by variable temperature weightless corrosion in 313 K and 333 K 1mol/L HCL solution. Compared with the 304 stainless steel, the Ti35Zr30Be24Cu7.5Co3.5 bulk amorphous alloy has a better corrosion resistance |
| Keywords: | giant magnetoresistance (GMR) Co-Cu granular films doping heat treatment magnetization |
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