ASTM E539-06

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:E539–06
Standard Test Method for
X-Ray Emission Spectrometric Analysis of 6Al-4V Titanium
1
Alloy
This standard is issued under the fixed designation E 539; 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 (e) indicates an editorial change since the last revision or reapproval.
4
1. Scope Wavelength-Dispersive X-Ray Spectrometry
2
1.1 This test method covers the X-ray emission analysis of
3. Terminology
6Al-4V titanium alloy for the following elements in the ranges
3.1 Definitions:
indicated:
3.1.1 For definitions of terms used in this test method, refer
Element Concentration Range, %
to Terminology E 135.
Aluminum 4.6 to 7.2
Chromium 0.023 to 0.071
Copper 0.015 to 0.066 4. Summary of Test Method
Iron 0.1 to 0.3
4.1 The specimen is finished to a clean, uniform surface and
Manganese 0.009 to 0.068
Molybdenum 0.018 to 0.072
then irradiated by high energy X-ray photons. Secondary X-
Nickel 0.026 to 0.073
rays are produced and emitted from the sample. This radiation
Tin 0.016 to 0.076
is diffracted by means of analyzing crystals and focused on a
Vanadium 2.6 to 5.4
Zirconium 0.009 to 0.064
detector which measures the count rates at specified wave-
lengths. The outputs of the detectors in voltage pulses are
1.2 This standard does not purport to address all of the
integrated or counted. Radiation measurements are made based
safety concerns, if any, associated with its use. It is the
on the time required to reach a fixed number of counts, or on
responsibility of the user of this standard to establish appro-
the total counts obtained for a fixed time (generally expressed
priate safety and health practices and determine the applica-
in counts per unit time). Concentrations of the elements are
bility of regulatory limitations prior to use. Specific precau-
determined by relating the measured radiation of unknown
tionary statements are given in Section 10.
samples to calibration curves prepared using reference materi-
2. Referenced Documents
als of known compositions.
3
2.1 ASTM Standards:
5. Significance and Use
E 135 Terminology Relating to Analytical Chemistry for
5.1 This method is suitable for providing data on the
Metals, Ores, and Related Materials
chemical composition of 6Al-4V titanium alloys for the scope
E 1172 Practice for Describing and Specifying a
elements. It is intended to be used for routine production
Wavelength-Dispersive X-Ray Spectrometer
control and for determination of chemical composition for the
E 1329 Practice for Verification and Use of Control Charts
purpose of certifying material specification compliance. Addi-
in Spectrochemical Analysis
tionally, the analytical performance data included with this
E 1361 Guide for Correction of Interelement Effects in
method may be used as a benchmark to determine if similar
X-Ray Spectrometric Analysis
X-ray spectrometers provide equivalent precision and accu-
E 1621 Guide for X-Ray Emission Spectrometric Analysis
racy.
E 1622 Practice for Correction of Spectral Line Overlap in
6. Interferences
1 6.1 Line overlaps, interelement effects and matrix effects
This test method is under the jurisdiction of ASTM Committee E01 on
may exist for some of the scope elements. A list of potential
Analytical Chemistry for Metals, Ores and Related Materials and is the direct
responsibility of Subcommittee E01.06 on Ti, Zr, W, Mo, Ta, Nb, Hf, Re.
line overlaps is provided in section 6.2. Modern X-ray spec-
Current edition approved Dec. 1, 2006. Published December 2006. Originally
trometers provide software for generation of mathematical
approved in 1975. Last previous edition approved in 2002 as E 539 – 02.
2
corrections to model the effects of line overlaps, interelement
Supporting data for this test method as determined by cooperative testing has
been filed at ASTM International Headquarters as two separate research reports and matrix interferences. The user of this method may choose
RR:E2-1010 and RR: RR: E01-1061.
to use these mathematical corrections for analysis. Guides
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
4
the ASTM website. Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
E539–06
E 1621 and E 1622 provide a more extensive overview of hygiene must be followed. Additionally, the safety guidelines
mathematical interference correction methods. established by the instrument manufacturer should be fol-
6.2 P
...