Acoustic-pseudoelastic effect and internal friction during stress-induced martensitic transformation in Cu-Al-Ni single crystals
Journal Article
·
· Scripta Materialia
- Russian Academy of Sciences, St. Petersburg (Russian Federation). A.F. Ioffe Physico-Technical Inst.
Internal friction (IF) during temperature-induced thermoelastic martensitic transformation (TMT) has been studied extensively, whereas IF behavior during stress-induced TMT has not attracted much attention so far. It is known that quasistatic flow stress may decrease under superimposition of an oscillatory stress in the case of dislocation plasticity (acoustoplastic or Blaha effect). Strain originating from the reversible TMT (so-called transformation pseudoelasticity), in contrast to the dislocation plastic strain, may be completely reversible, however, accompanied by macroscopic hysteresis. The existence of the pseudoelastic hysteresis is usually attributed to the presence of obstacles impeding the mobility of interfaces during stress-induced transformation. A number of theories also consider the mobility of interfaces as the main source of IF during TMT. As a consequence, one should expect certain interconnection between the ADIF during stress-induced TMT and the macroscopically observed hysteresis. Thus the purpose of present paper is to study in a wide oscillatory strain amplitude range the ADIF during stress-induced TMT and the effect of ultrasound on this mode of deformation.
- OSTI ID:
- 247972
- Journal Information:
- Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 10 Vol. 34; ISSN 1359-6462; ISSN XZ503X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Strain dependence of pseudoelastic hysteresis of NiTi
Microstructural influence of Mn additions on thermoelastic and pseudoelastic properties of Cu-Al-Ni alloys
Internal friction due to thermoelastic martensitic transformation. [Cu-13wt%Zn-9wt%Al]
Journal Article
·
Sat May 01 00:00:00 EDT 1999
· Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
·
OSTI ID:363986
Microstructural influence of Mn additions on thermoelastic and pseudoelastic properties of Cu-Al-Ni alloys
Journal Article
·
Sun May 01 00:00:00 EDT 1994
· Acta Metallurgica et Materialia; (United States)
·
OSTI ID:5158165
Internal friction due to thermoelastic martensitic transformation. [Cu-13wt%Zn-9wt%Al]
Journal Article
·
Sat May 01 00:00:00 EDT 1993
· Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States)
·
OSTI ID:6207962