材料低温膨胀性能检测装置
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摘要
德国Leica-J11万能膨胀仪,一是仅凭人的视觉读取信号容易引起较大误差,二是其测定温度范围仅限在室温以上。为了弥补目前材料低温膨胀仪数量少以及测试成本昂贵的不足,在该设备的基础上进行了改装。改装后仪器的测试温度范围为80～273K,膨胀系数测定范围为10~(-6)～10~(-5)/K,测量精度达10mm。改装后的仪器能够满足材料低温性能的测试要求。
The German Leica-J11 universal expansion instrument is first easy to cause large errors when signals are read only by human vision,and second,its temperature measuring range is only above room temperature.In order to make up for that the number of materials cryogenic dilatometers is small and the cost of testing is expensive,the modification has been made on the basis of this equipment.The testing temperature range of the modified instrument is 80 K-273 K,the measuring range of expansion coefficient is from 10~(-6) to 10~(-5)/K and the measuring accuracy is 10 mm.The modified instrument can meet the testing requirements of low temperature properties of materials.
The German Leica-J11 universal expansion instrument is first easy to cause large errors when signals are read only by human vision,and second,its temperature measuring range is only above room temperature.In order to make up for that the number of materials cryogenic dilatometers is small and the cost of testing is expensive,the modification has been made on the basis of this equipment.The testing temperature range of the modified instrument is 80 K-273 K,the measuring range of expansion coefficient is from 10~(-6) to 10~(-5)/K and the measuring accuracy is 10 mm.The modified instrument can meet the testing requirements of low temperature properties of materials.
引文
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[16]Standard Test Method for Linear Thermal Expansion of Solid Materials With a Push-Rod Dilatometer:ASTM E228-11[S].ASTMInternational:United states,Materials and Testing Association,2011.
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[18]徐烈,郜秀纺.77~300K热膨胀系数测试装置[J].低温工程,1997(2):47-50.
[2]加藤哲男.高强度低膨胀合金:昭55-131155[P].1980-10-11.
[3]TU Y,XU J,ZHANG J,et al.Effect of solid-solution temperature on the microstructure of Fe-Ni based high strength low thermal expansion(HSLTE)alloy[J].Int J Min Met Mater,2007,14(1):46-51.
[4]李红英.浅论低温对金属材料性能的影响[J].现代矿业,2011(4):113-115.
[5]LOMOVA N V,SHABANOVA I N.The study of the electronic structure and magnetic properties of invar alloys based on transition metals[J].J Electron Spectrosc Relat Phenom,2004,137-140:511-517.
[6]郭贻诚.铁磁学[M].北京:高等教育出版社,1965:32-46.
[7]XIONG W,ZHANG H,VITOS L,et al.Magnetic phase diagram of the Fe-Ni system[J].Acta Mater,2011,59(2):521-530.
[8]鲜于泽,卢志超.因瓦效应与磁性理论[J].石家庄:河北师范大学学报.1995(增刊1):177-179.
[9]谢佑卿.金属材料科学系统学[M].长沙:中南工业大学出版社,1998:25-227.
[10]RUBAN A V,KATSNELSON M I,OLOVSSON W,et al.Origin of magnetic frustration in Fe-Ni Invar alloys[J].Phys Rev B,71,2005:054402.
[11]佚名.日本一研究称解开因瓦合金低温不膨胀之谜[J].现代材料动态,2011(10):15-16.
[12]王正道,赵立中,途志华,等.应变片法测量低温下材料线膨胀系数[J].低温工程,1999(1):18-21.
[13]朱慧英,杜玉海.双线法测玻璃热线膨胀系数:QB/T 2298-1997[S].北京:中国轻工业出版社,1997.
[14]郭一玲,王惠英,高桂贤,等.激光干涉法低温线膨胀系数的测定[J].稀有金属,1979(1):43-49,78.
[15]陈应秀,杨德华,崔向群.一种测量材料线膨胀系数的新方法[J].工具技术,2006(12):85-88.
[16]Standard Test Method for Linear Thermal Expansion of Solid Materials With a Push-Rod Dilatometer:ASTM E228-11[S].ASTMInternational:United states,Materials and Testing Association,2011.
[17]Linear Thermal Expansion of Solid Materials by Thermomechanical Analysis:ASTM E 831-14[S].ASTM International:United states,Materials and Testing Association,2014.
[18]徐烈,郜秀纺.77~300K热膨胀系数测试装置[J].低温工程,1997(2):47-50.