Elasticity Analysis of Texture for Titanium and Niobium Plate

Hongsun, Chen; Shiwu, You; Ma, Lin; Lubin, Han; Shuqian, Wang

doi:10.2320/matertrans1989.32.315

Cited by 1 publication

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“…In ref. [34,52], the elastic modulus of aluminum material in the <100> orientation at room temperature is 62.73 GPa, and the result of molecular dynamics calculation in this study is 61.19 GPa, and the deviation between them is %2.5%. This proves the correctness of the calculation method of this article.…”

Section: The Changes Of Elastic Modulus and Shear Modulus With Tempermentioning

confidence: 61%

“…When testing the elastic properties of other crystal orientations by using experimental methods, the main problem is that it is difficult to prepare samples with other crystal orientations and accurately measure the data of other crystal orientations. [ 34 ] The molecular dynamics method can solve the problems of difficulty in preparing specimens with other crystal orientations and the deviation between the loading direction and the given crystal orientation.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Temperature and Pressure on Elastic Properties of Single Crystal Aluminum in Different Crystal Orientations

Yang

2020

Physica Status Solidi (b)

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Molecular dynamics simulations are carried out to study the mechanical and elastic properties of single crystal aluminum with various crystal orientations at different temperatures and under different pressure. Transformations of lattice structures under high pressure, tensile and shearing loads are investigated, respectively. When the pressure increases to 1011 Pa, the face centered cubic (FCC) structure is completely transformed into body centered cubic (BCC) and other structures. The transformation from FCC to hexagonal close packed (HCP) and other structures takes place during tensile and shearing processes. Elastic compliance constants are calculated at different temperatures. Elastic modulus and shear modulus of different crystal orientations at different temperatures are calculated by the formula method, and compared with the results of molecular dynamics method. The decrease extent of elastic modulus in <111> crystal orientation is the smallest with the increase of temperature. The effects of high pressure on elastic modulus and shear modulus in different crystal orientations are also investigated. When the pressure exceeds 109 Pa, the elastic modulus and shear modulus in all crystal orientations begin to increase. Poisson's ratio in different crystal orientations at different temperatures and under high pressure are also calculated.

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Section: The Changes Of Elastic Modulus and Shear Modulus With Tempermentioning

confidence: 61%

Section: Introductionmentioning

confidence: 99%