ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Over the last 40 years there have been many papers published showing superplasticproperties of metallic materials. However there has been no standardized test available to assess andcompare material, and researchers and companies in the field have devised a number of differentmethods to show superplastic properties. The value of these properties can vary dependent on the testmethod used.ASTM International (formerly The American Society for Testing and Materials ) has developed astandardized test method for superplastic properties. The standard is intended for all to use as acommon platform for testing, evaluating and publishing superplastic properties to a uniform format,useful for both academia and industry.The paper outlines the main points of the standard, including:-The coupon geometry and the method of clamping the coupon in the grips.The furnace and test machine requirements.The testing conditions and the method of pulling the coupon.The analysis of the load and extension data from the test, and the standard presentation of superplasticproperties.The basic superplastic properties of stress versus strain for any particular constant strain rate.The method to determine ‘m’, using a step method at a particular strain.Some data is presented showing how the properties of fine grain Ti-6Al-4V titanium alloy are derivedand presented using the standard
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.551-552.105.pdf
