Author: Paul F. Sikora
Publisher:
ISBN:
Category : Molybdenum alloys
Languages : en
Pages : 24
Book Description
High-temperature Tensile and Stress-rupture Properties of Some Alloys in the Tungsten-molybdenum System
Author: Paul F. Sikora
Publisher:
ISBN:
Category : Molybdenum alloys
Languages : en
Pages : 24
Book Description
Publisher:
ISBN:
Category : Molybdenum alloys
Languages : en
Pages : 24
Book Description
High-temperature Tensile and Stress-rupture Properties of Some Alloys in the Tungsten-molybdenum System
Author: Paul F. Sikora
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
Book Description
Three alloys consisting of 10, 25, and 50 wt-% Mo in W were evaluated at 2500 to 4400 F to determine their tensile properties. Results showed the 10 and 25 wt-% alloys have higher tensile strength than unalloyed W at 2500 and 3000 F and equivalent strength to about 3500 F. The 50 wt-% alloy has strength equivalent to unalloyed W from 2500 to 3200 F. Unalloyed W has higher strength than the alloys above 3500 F. The results of stress-rupture tests for the 50 wt-% alloy are presented for the temperature range oof 2500 to 3500 F in the as-worked and fully annealed conditions. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
Book Description
Three alloys consisting of 10, 25, and 50 wt-% Mo in W were evaluated at 2500 to 4400 F to determine their tensile properties. Results showed the 10 and 25 wt-% alloys have higher tensile strength than unalloyed W at 2500 and 3000 F and equivalent strength to about 3500 F. The 50 wt-% alloy has strength equivalent to unalloyed W from 2500 to 3200 F. Unalloyed W has higher strength than the alloys above 3500 F. The results of stress-rupture tests for the 50 wt-% alloy are presented for the temperature range oof 2500 to 3500 F in the as-worked and fully annealed conditions. (Author).
The Engineering Properties of Tungsten and Tungsten Alloys
Author: F. F. Schmidt
Publisher:
ISBN:
Category : Tungsten
Languages : en
Pages : 164
Book Description
The results of a state-of-the-art survey covering tungsten and ten of its alloys are presented. 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.
Publisher:
ISBN:
Category : Tungsten
Languages : en
Pages : 164
Book Description
The results of a state-of-the-art survey covering tungsten and ten of its alloys are presented. 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.
NASA Technical Note
Development and Evaluation of High-temperature Tungsten Alloys
Author: Armour Research Foundation (U.S.)
Publisher:
ISBN:
Category : Tungsten alloys
Languages : en
Pages : 34
Book Description
Publisher:
ISBN:
Category : Tungsten alloys
Languages : en
Pages : 34
Book Description
Development of Workable Molybdenum- and Tungsten-base Alloys
Author: M. Semchyshen
Publisher:
ISBN:
Category : Materials at high pressures
Languages : en
Pages : 86
Book Description
A number of complex molybdenum-, molybdenumtungsten-, and tungsten-base alloys were consolidated by the vacuum-arc-casting technique. Successful extrusions were realized from all of the vacuum-arc-cast ingots. Extrusion constants well above those of earlier experiments were measured, indicative of the good elevated-temperature strength and concomitant high resistance to extrusion of the materials studied. Rolled bars were studied from the standpoint of recrystallization behavior, transition temperature, tensile properties as a function of temperature and, to a limited extent, creep-rupture properties. A carbon synergism was studied in the alloys Mo + 3% Ti + 0.5% Zr and Mo + 25% W + 1.25% Ti + 0.1% Zr from the standpoint of elevated temperature strength. In the case of both alloys, the carbon contents yielding the highest elevated temperature strengths also resulted in the highest transition temperatures as measured by the tensile test. An alloy based on Mo-50% W, and containing 0.8% Ti and 0.3% Zr, displayed exceptionally high strengths at elevated temperatures. The tensile transition temperature of this material was, however, above room temperature. (Author).
Publisher:
ISBN:
Category : Materials at high pressures
Languages : en
Pages : 86
Book Description
A number of complex molybdenum-, molybdenumtungsten-, and tungsten-base alloys were consolidated by the vacuum-arc-casting technique. Successful extrusions were realized from all of the vacuum-arc-cast ingots. Extrusion constants well above those of earlier experiments were measured, indicative of the good elevated-temperature strength and concomitant high resistance to extrusion of the materials studied. Rolled bars were studied from the standpoint of recrystallization behavior, transition temperature, tensile properties as a function of temperature and, to a limited extent, creep-rupture properties. A carbon synergism was studied in the alloys Mo + 3% Ti + 0.5% Zr and Mo + 25% W + 1.25% Ti + 0.1% Zr from the standpoint of elevated temperature strength. In the case of both alloys, the carbon contents yielding the highest elevated temperature strengths also resulted in the highest transition temperatures as measured by the tensile test. An alloy based on Mo-50% W, and containing 0.8% Ti and 0.3% Zr, displayed exceptionally high strengths at elevated temperatures. The tensile transition temperature of this material was, however, above room temperature. (Author).
Observations of Properties of Sintered Wrought Tungsten Sheet at Very High Temperatures
Author: Earl C. Sutherland
Publisher:
ISBN:
Category : Materials at high temperatures
Languages : en
Pages : 48
Book Description
Publisher:
ISBN:
Category : Materials at high temperatures
Languages : en
Pages : 48
Book Description
NASA Technical Note
Some Properties of High-purity Sintered Wrought Molybdenum Metal at Temperatures Up to 2400° F
Author: R. A. Long
Publisher:
ISBN:
Category : Metals
Languages : en
Pages : 84
Book Description
Outstanding mechanical properties reported are: tensile strengths from 1800 to 2400 degrees F of 33,670 and 27,500 pounds per square inch; 100-hour strength at 1800 degrees F of 19,300 plus or minus 300 pounds per square inch. The properties of materials evaluated varied with degree of "effective" cold working, recrystallization, temperature, and manufacturing source.
Publisher:
ISBN:
Category : Metals
Languages : en
Pages : 84
Book Description
Outstanding mechanical properties reported are: tensile strengths from 1800 to 2400 degrees F of 33,670 and 27,500 pounds per square inch; 100-hour strength at 1800 degrees F of 19,300 plus or minus 300 pounds per square inch. The properties of materials evaluated varied with degree of "effective" cold working, recrystallization, temperature, and manufacturing source.
Technical Publications Announcements with Indexes
Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1318
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1318
Book Description