AlBeCast 920® Composite

Nombres alternativos y comerciales
AlBeCast 920®
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Description

Materion's AlBeCast® product line is a family of investment cast aluminum-beryllium metal matrix composites that provides designers a net-shape product. Advantages over aluminium A356.0:

  • ~22% lower density
  • ~3 times stiffer (modulus of elasticity in tension)
  • Up to 10 times better in damping coefficient
  • ~40% lower in coefficient of thermal expansion (CTE)
  • ~50% higher specific heat
  • ~28% higher thermal conductivity

  • Advantages over beryllium:

  • ~3 times greater ductility than hot pressed beryllium with greater damage tolerance
  • Castable for complex and precise net shape configurations
  • Weldable for defect repair
  • Reduced machining and scrap generation
  • Reduced environmental processing concerns resulting from reduced waste
  • Does not require chemical etching
  • Reduced material usage
  • Reduced cost
  • Los datos sobre este material han sido proporcionados por Materion Brush GmbH.

    A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
    Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

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    Propiedades

    General

    PropertyTemperatureValue

    Densidad

    23.0 °C

    2.17 g/cm³

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    Mecánica

    PropertyTemperatureValueComment

    Coeficiente de Poisson

    23.0 °C

    0.2 [-]

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    Compressive yield strength

    23.0 °C

    226.1 MPa

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    Elongación

    23.0 °C

    3 %

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    Límite elástico Rp 0,2

    23.0 °C

    213.7 MPa

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    Módulo elástico

    23.0 °C

    193 GPa

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    Resistencia a la fatiga

    23.0 °C

    117.2 MPa

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    10⁷ cycles, R=-1, Kt=1

    Resistencia a la tracción

    23.0 °C

    289.6 MPa

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    Resistencia al cizallamiento

    23.0 °C

    247.5 MPa

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    Pin Double Shear Strength

    Aplicaciones térmicas

    PropertyTemperatureValue

    Calor específico

    23.0 °C

    1250 J/(kg·K)

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    Coeficiente de dilatación térmica

    23.0 °C

    1.42E-5 1/K

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    Conductividad térmica

    23.0 °C

    105.5 W/(m·K)

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    Eléctrico

    PropertyValue

    Specific Electrical conductivity

    40 % IACS

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    Chemical properties

    PropertyValueComment

    Aluminio

    Balance

    Berilio

    61.1 - 68.6 %

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    Cobalto

    0.65 - 1.35 %

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    Germanio

    0.55 - 0.95 %

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    Hierro

    0.45 %

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    max.

    Níquel

    0.2 %

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    max.

    Plata

    2.65 - 3.35 %

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    Silicona

    0.2 %

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    max.

    Technological properties

    Property