Mechanical Properties of Tantalum and Niobium Base Alloys

Mechanical Properties of Tantalum and Niobium Base Alloys PDF Author: Barry L. Mordike
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages : 48

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Book Description
The critical resolved shear stress of tantalum base alloys was measured from -196C to 300C and of niobium base alloys from -196C to 1800C. The behavior at low temperatures is complex. Certain features can, however, be recognized as significant: Both indirect and direct interactions contribute to the critical resolved shear stress. At high temperatures solid solution hardening is associated with an elastic interaction between solute atoms and dislocations. The modulus misfit parameter is more important than the size misfit parameter in describing the hardening.

Mechanical Properties of Tantalum and Niobium Base Alloys

Mechanical Properties of Tantalum and Niobium Base Alloys PDF Author: Barry L. Mordike
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages : 48

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Book Description
The critical resolved shear stress of tantalum base alloys was measured from -196C to 300C and of niobium base alloys from -196C to 1800C. The behavior at low temperatures is complex. Certain features can, however, be recognized as significant: Both indirect and direct interactions contribute to the critical resolved shear stress. At high temperatures solid solution hardening is associated with an elastic interaction between solute atoms and dislocations. The modulus misfit parameter is more important than the size misfit parameter in describing the hardening.

The Engineering Properties of Tantalum and Tantalum Alloys

The Engineering Properties of Tantalum and Tantalum Alloys PDF Author: F. F. Schmidt
Publisher:
ISBN:
Category : Tantalum
Languages : en
Pages : 134

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Book Description
This report presents the results of a state-of-the-art survey covering tantalum and seven of its alloys. All data are given in tabular and graphical form covering some of the more important physical, mechanical, and metallurgical properties for each material. References are given at the conclusion of each material section.

Tantalum and Tantalum Alloys

Tantalum and Tantalum Alloys PDF Author: F. F. Schmidt
Publisher:
ISBN:
Category : Tantalum
Languages : en
Pages : 344

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Physical and Mechanical Properties of Columbium and Columbium-base Alloys

Physical and Mechanical Properties of Columbium and Columbium-base Alloys PDF Author: E. S. Bartlett
Publisher:
ISBN:
Category : Niobium
Languages : en
Pages : 72

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Physical and Mechanical Properties of Tantalum

Physical and Mechanical Properties of Tantalum PDF Author: H. R. Ogden
Publisher:
ISBN:
Category : Tantalum
Languages : en
Pages : 22

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Fundamental and Applied Research and Development in Metallurgy

Fundamental and Applied Research and Development in Metallurgy PDF Author: E. J. Rapperport
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages : 80

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Niobium, Tantalum, Molybdenum and Tungsten

Niobium, Tantalum, Molybdenum and Tungsten PDF Author: University of Sheffield. Department of Metallurgy
Publisher:
ISBN:
Category : Molybdenum
Languages : en
Pages : 430

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The Science and Technology of Tungsten, Tantalum, Molybdenum, Niobium and Their Alloys

The Science and Technology of Tungsten, Tantalum, Molybdenum, Niobium and Their Alloys PDF Author: North Atlantic Treaty Organization. Advisory Group for Aeronautical Research and Development
Publisher:
ISBN:
Category : Confrences
Languages : en
Pages : 612

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Effect of Alloying on the Mechanical Properties of Cast Tantalum

Effect of Alloying on the Mechanical Properties of Cast Tantalum PDF Author: M. A. Tylkin
Publisher:
ISBN:
Category :
Languages : en
Pages : 18

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Book Description
The effect of alloying with Ti, Zr, V, Nb, Cr, Mo, W, Re, Co, or Ni on the mechanical properties of cast tantalum have been investigated. The hardness of unalloyed tantalum drops with increasing purity. Alloying, as a rule, increased hardness and strength, but reduced ductility. Cobalt and nickel produce the sharpest increase in hardness; titanium and niobium had practically no effect. The best combination of properties was achieved by alloying with tungsten, molybdenum, or rhenium, which raises the room temperature strength of the alloy while maintaining sufficient ductility. At 1500 and 1800C, the strength of tantalum-tungsten and tantalum-rhenium alloys is 2-3 times higher than that of unalloyed tantalum. The maximum strength of tantalum-niobium alloy is attained at a niobium content of 30-40 percent; in this case, however, the alloy elongation drops to 18-20 percent and the reduction of area to 38-47 percent. Tantalum-niobium alloy has good formability at room temperature regardless of the amount of components. (Author).

Niobium, Molybdenum, Tantalum and Tungsten

Niobium, Molybdenum, Tantalum and Tungsten PDF Author: R. Syre
Publisher:
ISBN:
Category : Heat resistant alloys
Languages : en
Pages : 210

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Book Description