自制热比较仪测量镁锂合金的导热系数
MEASURING THERMAL CONDUCTIVITY OF Mg-Li ALLOYS BY THERMAL-COMPARATOR
摘 要
依据稳态热传导原理自制的带有自动测温系统的热比较仪,结构简单、操作方便,适用于室温下合金导热系数的比较和测定。利用该设备对新开发的镁锂合金的导热系数进行了测量,反映了合金含量与导热性能之间的规律,能够满足对新型合金热物理性质及其影响因素的探索研究。
导热系数
镁锂合金
thermal-comparator
thermal conduction coefficient
magnesium-lithium alloy
Abstract
A self-designed thermal-comparator with automatic-temperature measurement was made on the basis of thermal conduction principle. It could be used in comparison of thermal conductivity (TC) of alloys. The TC coefficients of the novel magnesium-lithium alloys were measured and the results showed the relationship between the thermal conductivity with alloying and heat treated states of alloys. The instrument was the simple in structure,easy to operate and effective in research and exploration of new alloys with unknown thermal properties.
中图分类号 TG113.22+3
所属栏目 试验技术与方法
基金项目
收稿日期 2007/10/25
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备注孙 黎(1983-),女,硕士。
引用该论文: SUN Li,WANG Yuan,ZHOU Tie-tao,LIU Pei-ying. MEASURING THERMAL CONDUCTIVITY OF Mg-Li ALLOYS BY THERMAL-COMPARATOR[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2008, 44(11): 607～608
孙 黎,王 媛,周铁涛,刘培英. 自制热比较仪测量镁锂合金的导热系数[J]. 理化检验－物理分册, 2008, 44(11): 607～608
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参考文献
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【5】陈洪荪. 金属物理性能及测试方法[M] .北京：冶金工业出版社,1987: 349-350．
【2】李劲风. 超轻 Mg-Li合金[J]. 轻合金加工技术,2004,32（10）：35-38．
【3】Watanable H,Tsutsui H. Deformation mechanisms in a coarse-grained Mg-Al-Zn alloy at elevated temperatures[J]. Int J Plasticity,2001,17：387-397．
【4】Powell R W,Tye R P. New measurements on thermal conductivity reference materials[J]. International Journal of Heat and Mass Transfer,1967,10（5）：360-366．
【5】陈洪荪. 金属物理性能及测试方法[M] .北京：冶金工业出版社,1987: 349-350．
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