Funkenspektrometrische Stickstoffbestimmung in niedriglegierten Stählen unter Berücksichtigung der Einzelfunkenspektrometrie
Funkenspektrometrische Stickstoffbestimmung in niedriglegierten Stählen unter Berücksichtigung der Einzelfunkenspektrometrie
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Funkenspektrometrische Stickstoffbestimmung in niedrigierten Stählen unter Berücksichtigung der Einzelfunkenspektrometrie
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发表时间：
2002
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通讯作者：
J. Niederstraßer
中科院分区：
文献类型：
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作者：
J. Niederstraßer
本文讨论了使用火花发射光谱法测定低合金钢中氮含量的可能性。实际工作中使用了多台光谱仪，其安装地点包括杜伊斯堡蒂森克虏伯斯塔尔股份公司的两个自动实验室。一旦选择了合适的分析线并优化了激发条件，就可以进行校准并确定光谱互参和分析性能数据。最后，使用标准参考方法载气热萃取法对手动和自动操作过程中生产样品获得的分析结果进行了比较。单火花光谱测定形成了另一个焦点。这使得记录和评估每个火花传输的强度成为可能。它还能够获得有关钢中夹杂物的定性和定量成分的信息，例如钢中夹杂物。氮化物。借助 SEM-EDX 和单火花光谱法，通过火花放电分析了夹杂物随时间的分解行为。
This paper deals with the possibilities of using spark emission spectrometry to determine nitrogen contents in low-alloy steels. Several spectrometers, whose installation sites include two automatic laboratories at Thyssen Krupp Stahl AG in Duisburg, were used to carry out the practical work. Once the appropriate analysis line had been selected and the excitation conditions had been optimised, calibrations were carried out and spectral intereferences and analytic performance data were determined. Finally, the analysis results obtained from the production samples during manual and automatic operation were compared using the carrier gas hot extraction method, which is the standard reference method. Single spark spectrometry forms another focus. This makes it possible to register and evaluate the intensities of every single spark transfer. It also enables information to be obtained concerning the qualitative and quantitative composition of inclusions in steel, e.g. nitrides. The decomposition behaviour of inclus ons over time was analysed by spark discharges with the help of both SEM-EDX and single spark spectrometry.