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  • 2005-2009  (2)
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Material
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Investigation of Ageing Phenomena in CuAlNi Based Shape Memory Alloys (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 537-538 (Feb. 2007), p. 129-136 
    Details
    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: The ageing phenomena and its effect on the thermoelastic martensitictransformation was investigated in three Cu-base SMAs. The transformation temperaturesshifted to higher temperatures due to aging in the beta-phase.To increase the alloy’s ductility, a definite amount of Mn (4 wt%) and Fe (2 wt%) were addedto the ternary alloy. The thermoelastic martensitic transformation was found in the not-agedsamples of the CuAlNiMn and CuAlNiMnFe alloys. This transformation was destroyed dueto ageing heat treatments by a fairly unknown exothermic process. The thermoelasticmartensitic transformation appeared again in the aged CuAlNiMn and CuAlNiMnFe samplesafter keeping them on room temperature for a few months.This phenomena was investigated by DSC, SEM, TEM, and XRD
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.537-538.129.pdf
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Investigation of Thermomechanical Treated Austenitic Stainless Steel (2005)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 473-474 (Jan. 2005), p. 237-242 
    Details
    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: During thermomechanical treatment of austenitic stainless steel a’ martensite and emartensite form in the austenite matrix. The martensitic transformation and deforming existing together result a high elongation at the investigated steel belonging to the TRIP grades. The amount of a’and e martensite depends on the strain level as well as on the deforming temperature in this steel. In the course of thermomechanical treatments we measured the amount and texture of the existing phases at different temperature and strain. It has been stated that the martensites are dominant in low temperature range, they have a considerable amount, and the transformation from emartensite to a’ martensite also takes place. The amount of a’ martensite increases by increasing the strain while the amount of e martensite shows a maximum. By investigating the relationship between the quantity of existing phases and the effect of texture, it has been stated that the transformation takes place in certain given plates in the textured matrix
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/09/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.473-474.237.pdf
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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