Mg-13Li-X薄板的拉伸性能与残余应力

对一种实验镁锂新合金进行了室温轧制，轧出厚度为1．0mm的薄板，并对其进行了拉伸性能和残余应力测试。结果表明，随轧制变形量的增加，板材强度增加，塑性降低；经过适当退火处理后，板材延伸率可达到39％，强度保持在180MPa。冷轧板材残余应力值为-3．8MPa，对合金强度基本没有影响。     

Insensitivity on tensile properties of forged Mg-13Li-X alloy to hot-rolling deformation

In order to examine the dependences of tensile properties of a forged Mg-13Li-X alloy on hot-rolling deformation and the underlying mechanisms tensile tests, residual stress measurements and texture analyses were conducted in the present study. It is found that after a hot-rolling deformation of 50% at 200 ℃, no much changes in tensile properties, nature and magnitude of residual stresses, and texture type and intensity can be identified for the alloy investigated. The insensitivity of tensile properties of the Mg-Li-X alloy to hot-rolling deformation is attributed at least partially to the insensitivity of residual stress and texture to hot-rolling.     

钇钡铜氧(YBa2Cu3O7)涂层超导用Ni基片上立方织构NiO缓冲层的制备

本研究完成了在具有立方织构的Ｎｉ基带上用外延生长法制和协ＮｉＯ缓冲层的工作。用此方法的ＮｉＯ膜具有很强的立方织构,其（１１１）的Х扫描峰的最大半高宽（ＦＷＨＭ）值达到１１。这种ＮｉＯ膜的形成为进上步溅射沉积具有双轴取向的ＹＢａ２Ｃｕ３Ｏ７膜奠定了良好的基础。     

钇钡铜氧(YBa_2Cu_3O_7)涂层超导用Ni基片上立方织构NiO缓冲层的制备

本研究完成了在具有立方织构的Ni基带上用外延生长法制备NiO缓冲层的工作。用此方法制成的NiO膜具有很强的立方织构 ,其 ( 111)的Φ扫描峰的最大半高宽 (FWHM )值达到 11°。这种NiO膜的形成为进一步溅射沉积具有双轴取向的YBa2 Cu3O7膜奠定了良好的基础