Strain Rate Sensitivity of Stress-strain Curves in a Ti-Fe-O Alloy

Strain glass transition in a multifunctional β-type Ti alloy

Recently, a class of multifunctional Ti alloys called GUM metals attracts tremendous attentions for their superior mechanical behaviors (high strength, high ductility and superelasticity) and novel physical properties (Invar effect, Elinvar effect and low modulus). The Invar and Elinvar effects are known to originate from structural or magnetic transitions, but none of these transitions were fo...

THE EFFECT OF QUENCHING RATE ON THE TEMPERATURE AND STRAIN-RATE SENSITIVITY OF URANIUM 2w/o MOLYBDENUM ALLOY

The mechanical properties of a U2w/oMo alloy in the Y-quenched, fastgas-cooled and as-extruded states a r e compared at tensile strain rates from 10-4 to ~ 2 0 0 0 / s . Significantly higher s t ress levels a r e observed in the Y-quenched specimens at all strain ra tes and failure processes a r e studied by optical and scanning electron microscopy.

A New Technique based on Strain Energy for Correction of Stress-strain Curve

Tensile stress-strain curve is of high importance in mechanics of materials particularly in numerical simulations of material deformations. The curve is usually obtained by experiment but is limited by necking phenomenon. Engineering stress-strain curve is converted to true stress-strain curve through simple formulas. The conversion, however, is correct up the point of necking. From this point ...

Effect of grain size on strain rate sensitivity of cryomilled Al– Mg alloy

Al–Mg alloy powder was cryomilled to achieve a nanocrystalline (NC) structure having an average grain size of 50 nm with high thermal stability, and then consolidated by quasi-isostatic forging. The consolidation resulted in a bulk material with ultrafine grains of about 250 nm, and the material exhibited enhanced strength compared to conventionally processed Al–Mg alloy. The hardness of as-cry...

Strain-rate sensitivity of hardness of nanocrystalline Ni75at.%Al25at.% alloy film