Martensite modulus dilemma in monoclinic NiTi-theory and experiments

نویسندگان

  • J. Wang
  • H. Sehitoglu
چکیده

Article history: Received 26 February 2014 Received in final revised form 30 April 2014 Available online 4 June 2014

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Detwinning in NiTi Alloys

This work focuses on the stress-induced transformation in solutionized and overaged single-crystal NiTi alloys. The potential role of detwinning on the recoverable strains was investigated both theoretically and also with temperature-cycling experiments. The detwinning is the growth of one variant within a martensite in expense of the other. It is shown that the experimental recoverable strains...

متن کامل

Mechanical Properties of Superelastic and Shape - Memory NiTi and NiTi - TiC Composites

The objective of this work was to study materials subjected to external loading where alternative deformation mechanisms are available to generate strains. In the case of shapememory and superelastic NiTi, these mechanisms are twinning and stress-induced phase transformation, respectively. Superelastic NiTi (51.0 at.% Ni) reinforced with 0, 10 and 20 vol.% TiC particles was fabricated by Hot Is...

متن کامل

Young’s modulus evolution and texture-based elastic–inelastic strain partitioning during large uniaxial deformations of monoclinic nickel–titanium

The authors draw upon recent first-principles calculations of monoclinic NiTi elastic constants to develop a combined numerical– empirical, texture-based approach for calculating the Young’s modulus of polycrystalline, monoclinic nickel–titanium specimens. These calculations are carried out for load direction inverse pole figures measured in situ via neutron diffraction during tension–compressi...

متن کامل

The Mechanics of Multifunctional Materials

Nano-structured NiTi instantaneously transforms from fcc austenite via an intermediate phase (the R-phase) into monoclinic B19’ martensite. At a grain size less than a critical limit of about 50nm no transformation can be observed even upon cooling down to cryogenic temperatures. In slightly larger grains the martensite appears as a laminate of alternating twinrelated Bain correspondence varian...

متن کامل

Texture, Strain, and Phase-Fraction Measurements during Mechanical Cycling in Superelastic NiTi

parameters in-situ during the transformation and to obtain SUPERELASTICITY is a deformation mechanism phase-specific information. However, neutrons penetrate observed in NiTi and other allotropic, ordered alloys where deeper than X-rays (several millimeters, compared to a few the high-temperature cubic phase (austenite), when subjected micrometers for X-rays from a conventional source). Thus, t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2014