脉冲热导法测定铝及铝合金中氢

Determination of hydrogen in aluminium and its alloy byimpulseheating thermal conductivity

应用RH-404氢测定仪,脉冲热导法测定铝及铝合金中氢。测定结果与高频热导法所测结果对比,两者基本一致。用俄国铝合金标样校验,全部结果在允许的误差范围内。本法相对标准偏差与高频热导法无明显差异。

The hydrogen contents in Al,AlMg and AlLi have been determined by the impulseheating thermal conductivity using RH404 hydrogen determinatorThe results obtained by the impulseheating thermal conductivity were well corresponding with those obtained by the inductionheating thermal conductivity according to the sampling testsThere is a little difference among the RSDs of both methodsThe calibration has been performed by means of the Russian standard Al alloy,all of the calibrating data were in the range of the allowance error