ASTM B577-16
(Test Method)Standard Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper
Standard Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper
SIGNIFICANCE AND USE
5.1 These test methods determine whether copper products will be resistant to embrittlement when exposed to elevated temperatures in a reducing atmosphere.
5.1.1 It is assumed that all who use these test methods will be trained personnel capable of performing these procedures skillfully and safely. It is expected that work will be performed in a properly equipped facility.
SCOPE
1.1 These test methods describe procedures for determining the presence of cuprous oxide (Cu2O) in products made from deoxidized and oxygen-free copper.
1.2 The test methods appear in the following order:
Sections
Microscopical Examination without Thermal Treatment
9 – 11
Microscopical Examination after Thermal Treatment
13 – 15
Closed Bend Test after Thermal Treatment
17 – 19
Reverse Bend Test after Thermal Treatment
21 – 23
1.3 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 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.
General Information
Relations
Buy Standard
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B577 − 16
Standard Test Methods for
Detection of Cuprous Oxide (Hydrogen Embrittlement
1
Susceptibility) in Copper
This standard is issued under the fixed designation B577; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* deoxidizers, as determined by metallographic examination at
75× under polarized light. Oxygen may be present as residual
1.1 These test methods describe procedures for determining
deoxidation products.
the presence of cuprous oxide (Cu O) in products made from
2
3.1.2 oxygen-free copper—electrolytic copper produced
deoxidized and oxygen-free copper.
substantially free of cuprous oxide without the use of metallic
1.2 The test methods appear in the following order:
or metalloidal deoxidizers as determined by metallographic
Sections
examination at 75× under polarized light. Oxygen may be
present up to a maximum of 5 ppm in Copper UNS No.
Microscopical Examination without Thermal Treatment 9–11
Microscopical Examination after Thermal Treatment 13–15
C10100 and 10 ppm in Copper UNS No. C10200.
Closed Bend Test after Thermal Treatment 17–19
Reverse Bend Test after Thermal Treatment 21–23
4. Summary of Test Methods
1.3 Units—The values stated in inch-pound units are to be
4.1 The presence of cuprous oxide is determined either by
regarded as standard. The values given in parentheses are
microscopicalexaminationunderpolarizedlightorbymethods
mathematical conversions to SI units that are provided for
that involve heating the test specimens in a hydrogen-rich
information only and are not considered standard.
atmosphere and rapidly cooling the specimens without undue
1.4 This standard does not purport to address all of the
exposure to air followed by a microscopical examination or a
safety concerns, if any, associated with its use. It is the
suitable bend test.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
5. Significance and Use
bility of regulatory limitations prior to use.
5.1 These test methods determine whether copper products
will be resistant to embrittlement when exposed to elevated
2. Referenced Documents
temperatures in a reducing atmosphere.
2
2.1 ASTM Standards:
5.1.1 It is assumed that all who use these test methods will
E3Guide for Preparation of Metallographic Specimens
be trained personnel capable of performing these procedures
E883Guide for Reflected–Light Photomicrography
skillfullyandsafely.Itisexpectedthatworkwillbeperformed
in a properly equipped facility.
3. Terminology
6. Apparatus
3.1 Definitions of Terms Specific to This Standard:
3.1.1 deoxidized copper—material produced substantially
6.1 Test Method A—Metallographic equipment of the type
free of cuprous oxide, by the use of metallic or metalloidal
described in Guide E3 and Guide E883 suitably equipped with
a polarized light illuminating device.
6.2 Test Methods B, C, and D:
1
These test methods are under the jurisdiction of ASTM Committee B05 on
6.2.1 Metallographic equipment of the type described in
Copper and CopperAlloys and is the direct responsibility of Subcommittee B05.06
Guide E3 and Guide E883 provided with normal illumination.
on Methods of Test.
6.2.2 A furnace of sufficient capacity, capable of maintain-
Current edition approved April 1, 2016. Published April 2016. Originally
ing the required reducing atmosphere while the specimens are
approved in 1973. Last previous edition approved in 2010 as B577–10. DOI:
10.1520/B0577-16.
being heated. A rapid cooling device using either water or a
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
reducing atmosphere is required.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.2.3 A machinist vise with replaceable matching pairs of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. jaw mandrels of various radii contours.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
B577 − 16
7. Sampling 10.1.1 Photomicrographs, when taken, are prepared in ac-
cordance with Guide E883.
7.1 Sampling shall be in accordance with the requirements
of the specification under which the material was ordered. 10.2 The polished, but unetched, surface of the specimens
are examined under reflected polarized light at a minimum
8.
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B577 − 10 B577 − 16
Standard Test Methods for
Detection of Cuprous Oxide (Hydrogen Embrittlement
1
Susceptibility) in Copper
This standard is issued under the fixed designation B577; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 These test methods describe procedures for determining the presence of cuprous oxide (Cu O) in products made from
2
deoxidized and oxygen-free copper.
1.2 The test methods appear in the following order:
Sections
Microscopical Examination without Thermal Treatment 9 – 11
Microscopical Examination after Thermal Treatment 13 – 15
Closed Bend Test after Thermal Treatment 17 – 19
Reverse Bend Test after Thermal Treatment 21 – 23
1.3 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are
mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 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.
2. Referenced Documents
2
2.1 ASTM Standards:
E3 Guide for Preparation of Metallographic Specimens
E883 Guide for Reflected–Light Photomicrography
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 deoxidized copper—material produced substantially free of cuprous oxide, by the use of metallic or metalloidal
deoxidizers, as determined by metallographic examination at 75× under polarized light. Oxygen may be present as residual
deoxidation products.
3.1.2 oxygen-free copper—electrolytic copper produced substantially free of cuprous oxide without the use of metallic or
metalloidal deoxidizers as determined by metallographic examination at 75× under polarized light. Oxygen may be present up to
a maximum of 5 ppm in Copper UNS No. C10100 and 10 ppm in Copper UNS No. C10200.
4. Summary of Test Methods
4.1 The presence of cuprous oxide is determined either by microscopical examination under polarized light or by methods that
involve heating the test specimens in a hydrogen-rich atmosphere and rapidly cooling the specimens without undue exposure to
air followed by a microscopical examination or a suitable bend test.
1
These test methods are under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.06 on Methods
of Test.
Current edition approved Oct. 1, 2010April 1, 2016. Published November 2010April 2016. Originally approved in 1973. Last previous edition approved in 20042010 as
B577 – 93B577 – 10. (2004). DOI: 10.1520/B0577-10.10.1520/B0577-16.
2
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 the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
B577 − 16
5. Significance and Use
5.1 These test methods determine whether copper products will be resistant to embrittlement when exposed to elevated
temperatures in a reducing atmosphere.
5.1.1 It is assumed that all who use these test methods will be trained personnel capable of performing these procedures
skillfully and safely. It is expected that work will be performed in a properly equipped facility.
6. Apparatus
6.1 Test Method A—Metallographic equipment of the type described in PracticeGuide E3 and Guide E883 suitably equipped
with a polarized light illuminating device.
6.2 Test Methods B, C, and D:
6.2.1 Metallographic equipment of the type described in PracticeGuide E3 and Guide E883 provided with normal illumination.
6.2.2 A furnace of sufficient capacity, capable of maintaining the required reducing atmosphere while the specimens are being
heated. A rapid cooling device using either water or a reducing atmosphere is required.
6.2.3 A machinist vise with repl
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.