ASTM E1450-03

Standard Test Method for Tension Testing of Structural Alloys in Liquid Helium

SCOPE
1.1 This test method describes procedures for the tension testing of structural alloys in liquid helium. The format is similar to that of other ASTM tension test standards, but the contents include modifications for cryogenic testing which requires special apparatus, smaller specimens, and concern for serrated yielding, adiabatic heating, and strain-rate effects.
1.2 To conduct a tension test by this standard, the specimen in a cryostat is fully submerged in normal liquid helium (He I) and tested using crosshead displacement control at a nominal strain rate of 10-3 s-1 or less. Tests using load control or high strain rates are not considered.
1.3 This standard specifies methods for the measurement of yield strength, tensile strength, elongation, and reduction of area. The determination of the elastic modulus is treated in Test Method E 111.
Note 1—The boiling point of normal liquid helium (He I) at sea level is 4.2 K (-452.1°F or 7.6°R). It decreases with geographic elevation and is 4.0 K (-452.5°F or 7.2°R) at the National Institute of Standards and Technology in Colorado, 1677 m (5500 ft) above sea level. In this standard the temperature is designated 4 K.
1.4 Values stated in SI units are treated as primary. Values stated in U.S. customary units are treated as secondary.
1.5 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. See Section 5.

General Information

• Status: Historical
• Publication Date: 09-Aug-2003
• ICS: 77.040.10 - Mechanical testing of metals
• Technical Committee: E28 - Mechanical Testing
• Drafting Committee: E28.04 - Uniaxial Testing

Relations

• Replaces: ASTM E1450-92(1998)e1 - Standard Test Method for Tension Testing of Structural Alloys in Liquid Helium
• Effective Date: 10-Aug-2003
• Replaced By: ASTM E1450-09 - Standard Test Method for Tension Testing of Structural Alloys in Liquid Helium
• Effective Date: 01-Jun-2009
• Referred By: ASTM F2924-14(2021) - Standard Specification for Additive Manufacturing Titanium-6 Aluminum-4 Vanadium with Powder Bed Fusion
• Effective Date: 10-Aug-2003
• Referred By: ASTM F3055-14a(2021) - Standard Specification for Additive Manufacturing Nickel Alloy (UNS N07718) with Powder Bed Fusion
• Effective Date: 10-Aug-2003
• Referred By: ASTM F3184-16 - Standard Specification for Additive Manufacturing Stainless Steel Alloy (UNS S31603) with Powder Bed Fusion
• Effective Date: 10-Aug-2003
• Referred By: ASTM F3056-14(2021) - Standard Specification for Additive Manufacturing Nickel Alloy (UNS N06625) with Powder Bed Fusion
• Effective Date: 10-Aug-2003
• Referred By: ASTM E1823-23 - Standard Terminology Relating to Fatigue and Fracture Testing
• Effective Date: 10-Aug-2003
• Referred By: ASTM F3122-14(2022) - Standard Guide for Evaluating Mechanical Properties of Metal Materials Made via Additive Manufacturing Processes
• Effective Date: 10-Aug-2003

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: E 1450 – 03
Standard Test Method for
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Tension Testing of Structural Alloys in Liquid Helium
This standard is issued under the fixed designation E1450; 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 (e) indicates an editorial change since the last revision or reapproval.
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1. Scope E8 TestMethodsforTensionTestingofMetallicMaterials
E8M Test Methods for Tension Testing of Metallic Mate-
1.1 This test method describes procedures for the tension
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rials [Metric]
testing of structural alloys in liquid helium. The format is
E29 Practice for Using Significant Digits in Test Data to
similar to that of other ASTM tension test standards, but the
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Determine Conformance with Specifications
contents include modifications for cryogenic testing which
E83 Practice for Verification and Classification of Exten-
requires special apparatus, smaller specimens, and concern for
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someter System
serrated yielding, adiabatic heating, and strain-rate effects.
E 111 TestMethodforYoung’sModulus,TangentModulus,
1.2 To conduct a tension test by this standard, the specimen
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and Chord Modulus
in a cryostat is fully submerged in normal liquid helium (He I)
E 1012 Practice for Verification of Specimen Alignment
and tested using crosshead displacement control at a nominal
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−3 −1
Under Tensile Loading
strain rate of 10 s or less. Tests using force control or high
strain rates are not considered.
3. Terminology
1.3 This standard specifies methods for the measurement of
3.1 Definitions:
yield strength, tensile strength, elongation, and reduction of
3.1.1 Thedefinitionsoftermsrelatingtotensiontestingthat
area.ThedeterminationoftheelasticmodulusistreatedinTest
appear in TerminologyE6 shall apply here. The definitions in
Method E 111.
this section also apply.
NOTE 1—The boiling point of normal liquid helium (He I) at sea level
3.1.2 adiabatic heating—the internal heating of a specimen
is 4.2 K (−269°C or −452.1°F or 7.6°R). It decreases with geographic
resulting from tension testing under conditions such that the
elevation and is 4.0 K (−269.2°C or −452.5°F or 7.2°R) at the National
heat generated by plastic work cannot be quickly dissipated to
Institute of Standards and Technology in Colorado, 1677 m (5500 ft)
the surrounding cryogen.
above sea level. In this standard the temperature is designated 4 K.
3.1.3 adjusted length of the reduced section—the length of
1.4 Values stated in SI units are treated as primary. Values
the reduced section plus an amount calculated to compensate
stated in U.S. customary units are treated as secondary.
for strain in the fillet region.
1.5 This standard does not purport to address all of the
3.1.4 axial strain—the average of the longitudinal strains
safety concerns, if any, associated with its use. It is the
measuredatoppositeorequallyspacedsurfacelocationsonthe
responsibility of the user of this standard to establish appro-
sidesofthelongitudinalaxisofsymmetryofthespecimen.The
priate safety and health practices and determine the applica-
longitudinal strains are measured using two or more strain-
bility of regulatory limitations prior to use. See Section 5.
sensing devices located at the mid-length of the reduced
section.
2. Referenced Documents
3.1.5 bending strain—the difference between the strain at
2.1 ASTM Standards:
the surface of the specimen and the axial strain (the bending
A370 TestMethodsandDefinitionsforMechanicalTesting
strain varies around the circumference and along the reduced
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of Steel Products
section of the specimen).
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E4 Practices for Force Verification of Testing Machines
3.1.6 Dewar—a vacuum-insulated container for cryogenic
E6 Terminology Relating to Methods of Mechanical Test-
fluids.
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ing
3.1.7 discontinuous yielding stress, s—the peak stress at
i
the initiation of the first measurable serration on the curve of
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This test method is under the jurisdiction of ASTM Committee E28 on
stress-versus-strain.
Mechanical Testing and is the direct responsibility of Subcommittee E28.04 on
3.1.7.1 Discussion—The parameter s is a function of test
i
Uniaxial Testing.
variables and is not a material constant.
Current edition approved Nov. 15, 2005. Published September 2003. Originally
approved in 1992. Last previous edition approved in 1998 as E1459–92 (1998).
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Annual Book of ASTM Standards, Vol 01.03.
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Annual Book of ASTM Standards, Vol 03.01. Annual Book of ASTM Standards, Vol 14.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E1450–03
strain with internal specimen heating. Examples of serrated
stress-strain curves for a typica
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