NEX DE Series—Ni:Fe Metallurgy

Scope

The measurement of the major binary alloy elements nickel and iron, and the critical tramp elements phosphorus, sulfur and arsenic, is demonstrated.

Background

In the metallurgical production of metals and alloys, it is important to ensure proper balance of the major alloy metals, and it is critical to ensure certain harmful tramp elements are at sufficiently low concentration or not present. Applied Rigaku Technologies EDXRF systems offer a simple and non-destructive means of quickly testing ingots and sample slugs to ensure these properties are optimized.Model: NEX DE

Calibration

10 assayed calibration standards were provided by a major metallurgy company producing nickel alloys.

Ni calibration

Correlation plot Ni

Fe calibration

Correlation plot Fe

Tramp elements

Precision results

To demonstrate typical precision (repeatability) standard 9905 was measured 10x in static position.

Conclusion

The NEX DE offers the lab analyst or at-line QC technician a simple and fast tool for measuring the Ni and Fe content, as well as the critical tramp elements P, S, and, As. Measurements are demonstrated here in vacuum environment; however, comparable results are also achieved using helium purge and the multi-position automatic sample changer.