冷却介质对退火态Cu50Zr42Al8块体非晶合金力学性能的影响

赵燕春; 寇生中; 王仁军; 索红莉

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DOI:DOI：10.3969/j.issn.1007-7545.2011.06.010

有色金属（冶炼部分）:2011,(6):41-44

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冷却介质对退火态Cu50Zr42Al8块体非晶合金力学性能的影响

赵燕春¹, 寇生中^2,3, 王仁军¹, 索红莉⁴

(1.兰州理工大学甘肃省有色金属新材料省部共国家重点实验室，兰州 730050;2.1.兰州理工大学甘肃省有色金属新材料省部共国家重点实验室，兰州 730050;3.2.北京工业大学材料学院国家教育部功能材料重点实验室，北京 100022;4.北京工业大学材料学院国家教育部功能材料重点实验室，北京 100022)

Effect of Cooling Medium on Mechanical Properties of AS Annealed Cu50Zr42Al8 Bulk Metallic Glass

ZHAO Yan-chun¹, KOU Sheng-zhong^2,3, WANG Ren-jun¹, SUO Hong-li⁴

(1.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China;2.1.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China;3.2.The Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100022, China;4.The Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100022, China)

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中文摘要: 考察在过冷液相区内790K+30min保温后炉冷和液氮冷却对Cu50Zr42Al8压缩断裂行为的影响。?5mm铸态非晶复合棒的屈服强度、断裂强度和杨氏模量分别为1670MPa，1849MPa和104.4GPa，塑性应变为1.9%。经炉冷和液氮冷却试样的压缩断裂强度和杨氏模量下降，分别为912，678MPa和38，56.5GPa。液氮冷却试样为部分非晶结构，炉冷试样完全晶化。晶化相均为正交晶相Cu10Zr7，四角晶相CuZr2和DO3结构的AlCu2Zr三种脆化相。

中文关键词: 金属材料块体非晶合金退火冷却介质力学性能

Abstract:The effect of liquid nitrogen quenching and furnace cooling on compression fracture behavior of Cu50Zr42Al8 bulk metallic glass after anealed at 790K+30min in supercooled liquid region is investigated. The ?5mm BMG composites exhibit compressive fracture strength and yielding strength of 1849MPa and 1670MPa with plastic strain of 1.9% and Young’s modulus of 104.4GPa. Compressive fracture strength and Young’s modulus of the liquid nitrogen quenched and air cooled samples are 912MPa, 678MPa and 38GPa, 56.5GPa, respectively. Compressive fracture strength and Young’s modulus of the liquid nitrogen quenched sample with a partial amphous structure are 912MPa and 38GPa, and the air cooled sample with a totally crystalline structure are 678MPa and 38GPa, respectively. The brittle crystalline phases are identified as tetragonal CuZr2, orthorhombic Cu10Zr7 and AlCu2Zr with DO3 structure.

keywords: metal material bulk metallic glass annealing cooling medium mechanical properties

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基金项目:国家自然科学基金(50371016)；国家自然科学基金委中-英国际合作与交流基金(50611130629)

作者	单位
赵燕春	兰州理工大学甘肃省有色金属新材料省部共国家重点实验室,兰州 730050
寇生中	1.兰州理工大学甘肃省有色金属新材料省部共国家重点实验室,兰州 730050；2.北京工业大学材料学院国家教育部功能材料重点实验室,北京 100022
王仁军	兰州理工大学甘肃省有色金属新材料省部共国家重点实验室,兰州 730050
索红莉	北京工业大学材料学院国家教育部功能材料重点实验室,北京 100022

Author Name	Affiliation
ZHAO Yan-chun	State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China
KOU Sheng-zhong	1.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China 2.The Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100022, China
WANG Ren-jun	State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China
SUO Hong-li	The Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100022, China

引用文本：
赵燕春,寇生中,王仁军,索红莉.冷却介质对退火态Cu50Zr42Al8块体非晶合金力学性能的影响[J].有色金属（冶炼部分）,2011(6):41-44.
ZHAO Yan-chun,KOU Sheng-zhong,WANG Ren-jun,SUO Hong-li.Effect of Cooling Medium on Mechanical Properties of AS Annealed Cu50Zr42Al8 Bulk Metallic Glass[J].Nonferrous Metals (Extractive Metallurgy),2011(6):41-44.

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