Plastic anisotropy of γ-TiAl revealed by axisymmetric indentation

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Studying the Effect of Productive Factors on Synthesis of Anostructure Tial (Γ) Alloy By Mechanical Alloying

In this research, the Planetary mill was used for mechanical alloying (MA) of Ti and Alpowder mixture with equal at% (Ti50Al50). The effect of various factors, such as process control agent(PCA), speed of rotation of vial and ball-to-powder weight ratio, on process were studied and the bestcondition to synthesis the alloy was determined. Study on X-ray diffraction (XRD) patterns showedthat at p...

متن کامل

Synthesis of Nano - Crystalline Γ - Tial Materials

One of the principal problems with nano-crystalline materials is producing them in quantities and sizes large enough for valid mechanical property evaluation. The purpose of this study was to explore an innovative method for producing nano-crystalline γ-TiAl bulk materials using high energy ball milling and brief secondary processes. Nano-crystalline powder feedstock was produced using a Fritsc...

متن کامل

Spherical indentation of elastic-plastic solids

The finite-element method is used to perform an accurate numerical study of the normal indentation of an elastic-plastic half-space by a rigid sphere. The effects of elasticity and strain-hardening rate of the half-space are explored, and the role of friction is assessed by analysing the limiting cases of frictionless contact and sticking friction. Indentation maps are constructed with axes of ...

متن کامل

Microscopic Anisotropy Revealed by Double-PFG NMR

Section on Tissue Biophysics and Biomimetics, NICHD, NIH. Discussion The multiple scattering generalizations [1] of the pulsed field gradient (PFG) experiments have been predicted to be sensitive to restricted diffusion even at long wavelengths [2], i.e., when γδGa«1. Here, γ is the gyromagnetic ratio of the spins, G and δ are, respectively, the strength and duration of the applied magnetic fie...

متن کامل

A finite element analysis and remeshing algorithm for an axisymmetric elasto-plastic contact problem related to indentation measurements

Non-linear quasi-static axisymmetric indentation problem is studied for comparitive computational analysis between elasto-plastic parameters and mechanical behaviour of homogeneous engineering metal materials. Mathematical model, based on deformation theory version of J2 theory, leads to quasi-static elasto-plastic contact problem with unknown contact domain, depending on the value of a indenta...

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

ژورنال

عنوان ژورنال: Acta Materialia

سال: 2010

ISSN: 1359-6454

DOI: 10.1016/j.actamat.2010.02.025