Submonolayer adsorbate reference material based on a low alloy steel fracture sample for Auger electron spectroscopy Part 2 Interlaboratory tests
作者:
SeahM. P.,
HuntC. P.,
YounesC. M.,
AllenG. C.,
ViefhausH.,
LeeB. J.,
WildR. K.,
BishopH. E.,
EnglishT.,
期刊:
Materials Science and Technology
(Taylor Available online 1992)
卷期:
Volume 8,
issue 11
页码: 1036-1042
ISSN:0267-0836
年代: 1992
DOI:10.1179/mst.1992.8.11.1036
出版商: Taylor&Francis
数据来源: Taylor
摘要:
AbstractA batch of low alloy reference material for the study of grain boundary segregations of P and Sn has been studied using eight Auger electron spectrometers in six laboratories. The instruments include both cylindrical mirror and concentric hemispherical analysers. Measurements in the differential mode using 5 eV Savitzky and Golay differentiation show that peaks close in energy, such as the ratio of the Sn 430 eV and Fe 651 e V peak-to-peak heights, can be compared directly to demonstrate a reproducibility of 8%. For peaks more widely separated, the scatter of intensity may exceed a factor of 2. However, using reference spectra from the material, all the spectrometers can be calibrated for their intensity/energy response function. After this calibration, the P and Sn peak-to-peak height ratios, with respect to Fe, show scatter of only 15%. In addition to this reduction in scatter, the mean values for the ratios can be corrected by up to a factor of 2. This work shows that the reference materials and methodology are suitable for relating the segregation spectra for P and Sn in low alloy steels from laboratory to laboratory on an absolute and traceable basis.MST/1684b
点击下载:
PDF (1052KB)
返 回