| Fe55Ni2Cr12Mo10Y2B6C13块体非晶合金的热膨胀行为 |
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| 引用本文： | 高振,郭金花,倪晓俊,李德仁,卢志超.Fe55Ni2Cr12Mo10Y2B6C13块体非晶合金的热膨胀行为[J].金属功能材料,2011,18(5):1-4. |
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| 作者姓名： | 高振 郭金花 倪晓俊 李德仁 卢志超 |
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| 作者单位： | 1. 中国钢研科技集团公司,北京,100081
2. 中国钢研科技集团公司,北京,100081;安泰科技股份有限公司技术中心,北京,100081 |
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| 基金项目： | 北京市科技计划重大项目资助(0405003000021); 国家863项目资助(No.2007AA03Z102) |
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| 摘 要： | 本文采用铜模吸铸法制备直径为4mm的块体非晶合金Fe55 Ni2 Cr12 M010 Yo12 B6 C13,对非晶合金在298K-1073K温度区间的热膨胀行为进行了分析.非晶合金的膨胀系数在室温至接近玻璃转化温度区间没有发生明显的变化;当温度超过Tg后,由玻璃态进人过冷液相区,粘度急剧增加,膨胀系数增高;在T>Tg...
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| 关 键 词： | 非晶合金 玻璃转化 热膨胀 |
Thermal Expansion Behavior of Bulk Amorphous Alloy Fe_(55)Ni_2Cr_(12)Mo_(10)Y_2B_6C_(13) |
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| GAO Zheng,GUO Jin-hua,NI Xiao-jun,LI De-ren,LU Zhi-chao.Thermal Expansion Behavior of Bulk Amorphous Alloy Fe_(55)Ni_2Cr_(12)Mo_(10)Y_2B_6C_(13)[J].Metallic Functional Materials,2011,18(5):1-4. |
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| Authors: | GAO Zheng GUO Jin-hua NI Xiao-jun LI De-ren LU Zhi-chao |
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| Affiliation: | GAO Zheng1,GUO Jin-hua1,2,NI Xiao-jun1,LI De-ren1,LU Zhi-chao1,2(1.China Iron & Steel Research Institute Group,Beijing 100081,China,2.Research and Development Center,Advanced Technology and Materials Co.,Ltd.,Beijing 100094,China) |
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| Abstract: | Bulk amorphous alloy Fe55Ni2Cr12Mo10Y2B6C13 with diameter of 4 mm was fabricated by copper mold casting in this paper.The linear thermal expansion behavior of amorphous alloy was studied between 298 K~1073 K.The thermal expansion coefficient didn′t change evidently from the room temperature to the glass transition temperature;The viscosity and the thermal expansion coefficient increased owing to the transition from glass state to super-cooled liquid when the temperature is above Tg;The alloy transforms from amorphous structure to crystalline structure when the temperature is above Tx,which resulted twice increasing-decreasing process of the thermal expansion.Thermal expansion behavior of bulk amorphous alloy is related with structural relaxation and viscous flow. |
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| Keywords: | amorphous alloy glass transition thermal expansion |
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