Origin of Memory Effect in Cu-Al-Ni Alloy

スポンサーリンク

概要

• 論文の詳細を見る

• The origin of the memory effect in Cu-14.2Al-4.3Ni (W/O) alloy has been investigated using the techniques of optical microscopy and electron microscopy. As a result the following have been established. The plastic deformation is caused by the growth or creation, and the contraction or disappearance of twins inside martensites, and the growth or contraction of martensites in the β_1 phase region. Upon heating martensites transform back into the β_1 phase and twins are annihilated, whether or not the martensite and twins have been introduced by deformation. These facts explain the origin of the memory effect. Based on these observations, the requirements for the memory effect have been proposed as follows: i) The martensite transformation is thermoelastic. ii) The lattice invariant strains are not dislocations but twins. The correlation between these requirements and the structural properties, and the reason why twins are annihilated upon the reverse transformation is also discussed.

• 社団法人応用物理学会の論文
• 1971-05-05

著者

• Otsuka Kazuhiro

  Institute Of Materials Science University Of Tsukuba

• Otsuka Kazuhiro

  Institute Of Scientific And Industrial Research Osaka University

• OTSUKA Kazuhiro

  Institute of Material Science, University of Tsukuba

関連論文

• The Nature of Reversible Change in M_S Temperatures of Ti-Ni Alloys with Alternating Aging
• Phase Transformation and Crystal Structures of Ti_2Ni_3 precipitates in Ti-Ni Alloys
• Structural Study of R-Phase in Ti-50.23 at. %Ni and Ti-47.75 at. %Ni-1.50 at. %Fe Alloys
• Phonon Softening in Au-49.5 at%Cd Alloy
• Measurement of Static and Dynamic Elastic Moduli of Shape Memory Alloys
• Fracture of Shape Memory Alloys
• Electronic structure changes associated with a martensitic transformation in a Ti_Ni_Fe_2 alloy studied by electron energy-loss spectroscopy
• Martensite Aging Effect in Ti-Pd and Ti-Pd-Ni High Temperature Shape Memory Alloys
• Morphology artd Crystallography of Thermoelastic γ' Cu-Al-Ni Martensite
• Origin of Memory Effect in Cu-Al-Ni Alloy
• Phonon Softening and Time Dependence of Elastic Peak Appearing Prior to the Martensitic Transformation in Au-47.5 at % Cd
• {1012} Transformation Twins in Hexagonal Martensite
• Development of shape memory alloys.
• Morphological changes associated with the R-phase and martensitic transformations in Ti-Ni single crystals.

もっと見る 閉じる

スポンサーリンク