Standard Test Method for X-Ray Fluorescence Spectrometric Analysis of 6Al-4V Titanium Alloy

SIGNIFICANCE AND USE
This method is suitable for providing data on the chemical composition of 6Al-4V titanium alloys for the scope elements. It is intended to be used for routine production control and for determination of chemical composition for the purpose of certifying material specification compliance. Additionally, the analytical performance data included with this method may be used as a benchmark to determine if similar X-ray spectrometers provide equivalent precision and accuracy.
SCOPE
1.1 This test method covers the X-ray fluorescence analysis of 6Al-4V titanium alloy for the following elements in the ranges indicated:
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 10.

General Information

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Historical
Publication Date
31-May-2007
Current Stage
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ASTM E539-07 - Standard Test Method for X-Ray Fluorescence Spectrometric Analysis of 6Al-4V Titanium Alloy
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:E539–07
Standard Test Method for
X-Ray Fluorescence Spectrometric Analysis of 6Al-4V
1
Titanium Alloy
This standard is issued under the fixed designation E539; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope E1361 Guide for Correction of Interelement Effects in
2 X-Ray Spectrometric Analysis
1.1 Thistestmethod coverstheX-rayfluorescenceanalysis
E1621 Guide for X-Ray Emission Spectrometric Analysis
of 6Al-4V titanium alloy for the following elements in the
ranges indicated:
3. Terminology
Element Concentration Range, %
3.1 Definitions:
Aluminum 4.6 to 7.2
Chromium 0.023 to 0.071
3.1.1 For definitions of terms used in this test method, refer
Copper 0.015 to 0.066
to Terminology E135.
Iron 0.1 to 0.3
Manganese 0.009 to 0.068
4. Summary of Test Method
Molybdenum 0.018 to 0.072
Nickel 0.026 to 0.073
4.1 The specimen is finished to a clean, uniform surface and
Silicon 0.03 to 0.06
then irradiated by high energy X-ray photons. Secondary X-
Tin 0.016 to 0.076
Vanadium 2.6 to 5.4
rays are produced and emitted from the sample. This radiation
Zirconium 0.009 to 0.064
is diffracted by means of analyzing crystals and focused on a
1.2 This standard does not purport to address all of the detector which measures the count rates at specified wave-
safety concerns, if any, associated with its use. It is the lengths. The outputs of the detectors in voltage pulses are
responsibility of the user of this standard to establish appro- integrated or counted. Radiation measurements are made based
priate safety and health practices and determine the applica- on the time required to reach a fixed number of counts, or on
bility of regulatory limitations prior to use. Specific precau- the total counts obtained for a fixed time (generally expressed
tionary statements are given in Section 10. in counts per unit time). Concentrations of the elements are
determined by relating the measured radiation of unknown
2. Referenced Documents
samples to calibration curves prepared using reference materi-
3
2.1 ASTM Standards: als of known compositions.
E135 Terminology Relating to Analytical Chemistry for
5. Significance and Use
Metals, Ores, and Related Materials
5.1 This method is suitable for providing data on the
E1172 Practice for Describing and Specifying a
chemical composition of 6Al-4V titanium alloys for the scope
Wavelength-Dispersive X-Ray Spectrometer
elements. It is intended to be used for routine production
E1329 PracticeforVerificationandUseofControlChartsin
control and for determination of chemical composition for the
Spectrochemical Analysis
purpose of certifying material specification compliance. Addi-
tionally, the analytical performance data included with this
method may be used as a benchmark to determine if similar
1
This test method is under the jurisdiction of ASTM Committee E01 on
X-ray spectrometers provide equivalent precision and accu-
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct
racy.
responsibility of Subcommittee E01.06 on Ti, Zr, W, Mo, Ta, Nb, Hf, Re.
Current edition approved June 1, 2007. Published June 2007. Originally
approved in 1975. Last previous edition approved in 2006 as E539 – 06. DOI: 6. Interferences
10.1520/E0539-07.
2 6.1 Line overlaps, interelement effects and matrix effects
Supporting data for this test method as determined by cooperative testing have
may exist for some of the scope elements. A list of potential
been filed at ASTM International Headquarters and may be obtained by requesting
Research Report RR:E2-1010 and Research Report RR:E01-1061.
line overlaps is provided in section 6.2. Modern X-ray spec-
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
trometers provide software for generation of mathematical
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
corrections to model the effects of line overlaps, interelement
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. and matrix interferences. The user of this method may choose
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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E539–07
to use these mathematical corrections for analysis. Guide as well as state and local regulations relating to radiation
E1621 provide a more extensive overview of mathematical hygiene must be followed. Additionally, the safety guidelines
interference correction methods. established by the instrument manufacturer should be fol-
6.2 Potential lin
...

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