Aug 12 2003 Ga accompanied by a Poisson 39s ratio of 0 75 to produce a large inplane auxetic behavior Keywords Galfenol magnetostrictive iron gallium mechanical properties negative Poisson 39s ratio auxetic 1 INTRODUCTION Alloys of iron substituted with nonmagnetic gallium exhibit coupling between their

Fracture in compression has been investigated in Fe65Mo14C15B6 Fe 65 Mo 14 C 15 B 6 bulk amorphous steel doped with lanthanides to provide systematic variations of the elastic moduli An onset of plasticity is observed as Poisson 39s ratio approaches 0 32 from below Combining with previous analysis reported by

Mar 9 2012 The full set of stressstrain curves for the four steel grades of table 1 is pictured in figure 11 From the initial elastic slope assuming Poisson 39s ratio 0 3 E 95 GPa is found at 600°C whereas literature gives values in the range 150 170 MPa for similar grades It must be noticed that quasiidentical low

Berkelium N A Iron 0 29 Rubidium N A Beryllium 0 032 Krypton N A Ruthenium 0 3 Bismuth 0 33 Lanthanum 0 28 Rutherfordium N A Bohrium N A Lawrencium N A Samarium 0 27 Boron N A Lead 0 44 Scandium 0 28 Bromine N A Lithium N A Seaborgium N A Cadmium 0 3 Livermorium N A Selenium

exist preferred values are recommended This compilation covers besides pure iron and pure nickel the entire binary composition range both b c c and f c c phases Elastic constants included are Young 39s modulus shear modulus bulk modulus reciprocal compressibility Poisson 39s ratio and single crystal elastic

Subegory Ferrous Metal Iron Base Metal Stainless Steel Superalloy Allegheny Ludlum Altemp A286 alloy is an ironbase superalloy useful for appliions requiring high strength and corrosion resistance up to 704 degrees Celsius and for lower stress appliions at high temperatures Poisson 39s Ratio 0 3 0 3

Jun 17 2010 All additions considered here decrease the bulk modulus B and Poisson 39s ratio ν of bcc Fe The complex composition dependence of the C 44 singlecrystal elastic constant is reflected in the polycrystalline shear modulus G Young 39s modulus E and Debye temperature Θ The polycrystalline

This compilation covers besides pure iron and pure nickel the entire binary composition range both b c c and f c c phases Elastic constants included are Young 39s modulus shear modulus bulk modulus reciprocal compressibility Poisson 39s ratio and single crystal elastic stiffnesses both second order and higher order

Endurance Limit 90 175 MPa 13 0534 25 3816 ksi Fracture Toughness 120 150 MPa m1 2 109 206 136 507 ksi1 2 Hardness 650 1100 MPa 94 2746 159 542 ksi Loss Coefficient 0 0006 0 002 0 0006 0 002 NULL Modulus of Rupture 110 220 MPa 15 9542 31 9083 ksi Poisson 39s Ratio 0 29 0 3 0 29

Endurance Limit 180 330 MPa 26 1068 47 8624 ksi Fracture Toughness 22 54 MPa m1 2 20 021 49 1425 ksi1 2 Hardness 1150 3200 MPa 166 793 464 121 ksi Loss Coefficient 0 0006 0 0022 0 0006 0 0022 NULL Modulus of Rupture 215 790 MPa 31 1831 114 58 ksi Poisson 39s Ratio 0 27 0 28 0 27

An early report suggested that a negative Poisson 39s ratio nu 1 7 occurred in single crystal iron pyrites 23 however recent study contradicts that claim 24 A negative Poisson 39s ratio as small as 0 4 in certain directions was calculated 25 from published data on single crystal cadmium Arsenic antimony and bismuth

Copper based alloys Cu 3 and Cu 4 1 2 x 104 kgf mm2 Poisson 39s ratio Cast and forged steel 0 29 Cast iron 0 26 All copperbased alloys 0 33 Coefficient of linear expansion Cast and forged steel and cast iron 12 0 x 106 mm mm°C All copperbased alloys 17 5 x 106 mm mm°C IACS Req 1980 Corr 2 1998 K3

Compressive Crushing Strength 570 to 1290 MPa 83 to 190 x 103 psi Elastic Young 39s Tensile Modulus 180 GPa 26 x 106 psi Elongation at Break 0 52 Fatigue Strength 69 to 170 MPa 10 to 25 x 103 psi Poisson 39s Ratio 0 29 Shear Modulus 69 GPa 10 x 106 psi Shear Strength 180 to 610 MPa 26 to 88 x 103 psi

Poisson 39s ratio is the ratio of the relative contraction strain transverse lateral or radial strain normal to the applied load to the relative extension strain or axial strain in the Steel cast 0 265 Steel Coldrolled 0 287 Steel high carbon 0 295 Steel mild 0 303 Titanium 99 0 Ti 0 32 Wrought iron 0 278 Znickel 0 36

Berkelium N A Iron 0 29 Rubidium N A Beryllium 0 032 Krypton N A Ruthenium 0 3 Bismuth 0 33 Lanthanum 0 28 Rutherfordium N A Bohrium N A Lawrencium N A Samarium 0 27 Boron N A Lead 0 44 Scandium 0 28 Bromine N A Lithium N A Seaborgium N A Cadmium 0 3 Livermorium N A Selenium

Poisson 39s ratio denoted by the Greek letter 39nu ν displaystyle nu nu and named after Siméon Poisson is the negative of the ratio of signed transverse strain to signed axial strain For small values of these changes ν displaystyle nu nu is the amount of transversal expansion divided by the amount of axial

These are compared with FE data and the apparent modulus is found to be within about 8 for the whole range of aspect ratios 10−2–103 and thus degrees of constraint for the cylinders The apparent moduli Keywords Simple compression Constrained compression Poisson 39s ratio Coulomb friction Inverse methods

Material condition Polycrystalline Bulk modulus GPa 169 8 Hardness Mohs 4 05 0 Izod toughness J m1 816 Poisson 39s ratio 0 293 Tensile modulus GPa 211 4 Tensile strength MPa 180210 Yield strength MPa 120150

Mechanical properties of iron ores are measured under the compression test The results obtained are as follows 1 Young 39s modulus of iron ores is proportional to the apparent specific gravity respectively And the Young 39s modulus of the hematite shows considerably higher than that of the magnetite 2 Young 39s modulus

Poisson 39s Ratio Values for Cast Iron Material Poisson 39s ratio Gray Irons Grade G1800 0 26 Grade G3000 0 26 Grade G4000 0 26 Ductile Irons Grade 604018 0 29 Grade 805506 0 31 Grade 1209002 0 28 Reference Callister W D JR 2007 Materials Science and Engineering An Introduction 7th edition

Nov 14 2017 The representation surfaces for which the length of the radius vector in the hkl direction equals to E hkl or υ hkl are constructed for seven BCC transition metals Cr Fe Mo Nb Ta V and W Neglecting W which is isotropic both representation surfaces of Young 39s modulus and Poisson 39s ratio are

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