US3390984A - High-temperature ductile alloys - Google Patents

High-temperature ductile alloys Download PDF

Info

Publication number
US3390984A
US3390984A US443692A US44369265A US3390984A US 3390984 A US3390984 A US 3390984A US 443692 A US443692 A US 443692A US 44369265 A US44369265 A US 44369265A US 3390984 A US3390984 A US 3390984A
Authority
US
United States
Prior art keywords
tungsten
alloys
thorium
temperatures
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US443692A
Other languages
English (en)
Inventor
Clayton D Dickinson
Friedman Sam
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Verizon Laboratories Inc
GTE LLC
Original Assignee
General Telephone and Electronics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US443692A priority Critical patent/US3390984A/en
Application filed by General Telephone and Electronics Corp filed Critical General Telephone and Electronics Corp
Priority to DE19661533345 priority patent/DE1533345B1/de
Priority to CH431566A priority patent/CH452904A/fr
Priority to FR55094A priority patent/FR1472637A/fr
Priority to ES0324653A priority patent/ES324653A1/es
Priority to DK155966AA priority patent/DK111922B/da
Priority to NL6603948A priority patent/NL6603948A/xx
Priority to BE678440D priority patent/BE678440A/xx
Priority to AT292166A priority patent/AT265676B/de
Application granted granted Critical
Publication of US3390984A publication Critical patent/US3390984A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • C22C27/04—Alloys based on tungsten or molybdenum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/045—Alloys based on refractory metals

Definitions

  • the 'billet was This invention relates to tungsten-base alloys characternext Sintered at a temperature of about 2350 f ized b high strength at l t d temperatures d ⁇ Q approximately 4hours to mutually diffuse the different intungsten-base alloys which combine high elevated tempergradients thereby forming a solid solution Of ihOl'llJlTl and ature strength with a low ductile-to-brittle transition teml'h'inium in tungsten, the C bon probably being partit tioned between tungsten carbide and a solid solution of The tungsten-base alloys of the present invention concarbon in tungsten.
  • the billet was then fabricated by tain rhenium, carbon and thorium.
  • tungsten-base alloys are pro- Measurements of ultimate tensile strength, recrystallizavided hi h o tain up t 70% heniu 0.002% to tion temperature and ductile-to-brittle transition tempera- 0.03% carbon and between 0.03% to 0.4% thorium. ture were carried out for a number of alloys.
  • alloys crystallization temperature was established by determinhave been produced which contain only tungsten, carbon ing at what temperature the alloy must be heated for and thorium, these alloys having high elevated temperaone hour "before the fibrous structure completely disture strength although they lack ductility at low temperappears and recrystallization is essentially complete.
  • the atures By varying the constituents within the specified transition from ductile-to-brit-tle behavor, which occurs ranges the best combination of mechanical properties and over a range of temperatures, was measured by attemptease of fabricability may be obtained for a given applica- 4 ing to bend specimens 1 inch long by /8 inch wide by tion.
  • the present alloys are generally stronger at 1650" and determining the minimum temperature at which the C., have higher recrsytallization temperatures and, when sample cracked after a small but perceptible amount of rhenium is incorporated, are ductile at lower temperatur s. bending (nil ductility temperature) and the minimum
  • a number of the alloys in the system are temperature at which the sample bent 105 without crackcompletely ductile at room temperature or below. For ing (ductility temperature). example, the alloys exhibit ultimate tensile strength at Characteristics of the alloys at different compositions 1650 C.
  • thorium 0.01% carbon and 1.0% rhenium, the balance tuztinsisting of tungsten.
  • a tungsten-base alloy characterized by high strength at elevated temperatures consisting essentially of 0.03% to 0.13% thorium and 0.004% to 0.3% carbon, the balance consisting of tungsten.
  • An alloy consisting essentially of 0.03% thorium, 0.003% to 0.03% carbon, and up rhenium, the balance consisting of tungsten.
  • An alloy consisting essentially of 0.03% to 0.04% thorium. 0.003% to 0.03% carbon and up to 7% rhenium, the balance consisting of tungsten, said alloy containing uniformly dispersed particles of thorium carbide having particle sizes predominantly in the range E00 to 2000 angstroms.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
US443692A 1965-03-29 1965-03-29 High-temperature ductile alloys Expired - Lifetime US3390984A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US443692A US3390984A (en) 1965-03-29 1965-03-29 High-temperature ductile alloys
CH431566A CH452904A (fr) 1965-03-29 1966-03-25 Alliage réfractaire à base de tungstène
FR55094A FR1472637A (fr) 1965-03-29 1966-03-25 Alliages réfractaires ductiles à base de tungstène
ES0324653A ES324653A1 (es) 1965-03-29 1966-03-25 Procedimiento para preparar unas aleaciones refractarias ductiles a base de tungsteno.
DE19661533345 DE1533345B1 (de) 1965-03-29 1966-03-25 Legierungen auf Wolframbasis
DK155966AA DK111922B (da) 1965-03-29 1966-03-25 Wolframlegering med stor styrke ved høje temperaturer.
NL6603948A NL6603948A (xx) 1965-03-29 1966-03-25
BE678440D BE678440A (xx) 1965-03-29 1966-03-25
AT292166A AT265676B (de) 1965-03-29 1966-03-28 Legierungen auf Wolframbasis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US443692A US3390984A (en) 1965-03-29 1965-03-29 High-temperature ductile alloys

Publications (1)

Publication Number Publication Date
US3390984A true US3390984A (en) 1968-07-02

Family

ID=23761825

Family Applications (1)

Application Number Title Priority Date Filing Date
US443692A Expired - Lifetime US3390984A (en) 1965-03-29 1965-03-29 High-temperature ductile alloys

Country Status (8)

Country Link
US (1) US3390984A (xx)
AT (1) AT265676B (xx)
BE (1) BE678440A (xx)
CH (1) CH452904A (xx)
DE (1) DE1533345B1 (xx)
DK (1) DK111922B (xx)
ES (1) ES324653A1 (xx)
NL (1) NL6603948A (xx)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580171A (en) * 1945-03-10 1951-12-25 Kanthal Ab Heat-resistant ferritic alloy
US3116145A (en) * 1962-04-30 1963-12-31 American Metal Climax Inc Tungsten-hafnium alloy casting
US3236699A (en) * 1963-05-09 1966-02-22 Gen Electric Tungsten-rhenium alloys
US3243291A (en) * 1963-10-29 1966-03-29 Gen Telephone & Elect High-temperature alloy

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE960930C (de) * 1951-03-30 1957-03-28 Climax Molybdenum Company Verfahren zur Herstellung von Gussstuecken aus Molybdaen- und bzw. oder Wolframlegierungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580171A (en) * 1945-03-10 1951-12-25 Kanthal Ab Heat-resistant ferritic alloy
US3116145A (en) * 1962-04-30 1963-12-31 American Metal Climax Inc Tungsten-hafnium alloy casting
US3236699A (en) * 1963-05-09 1966-02-22 Gen Electric Tungsten-rhenium alloys
US3243291A (en) * 1963-10-29 1966-03-29 Gen Telephone & Elect High-temperature alloy

Also Published As

Publication number Publication date
BE678440A (xx) 1966-09-01
NL6603948A (xx) 1966-09-30
CH452904A (fr) 1968-03-15
AT265676B (de) 1968-10-25
DE1533345B1 (de) 1970-08-20
ES324653A1 (es) 1967-05-01
DK111922B (da) 1968-10-21

Similar Documents

Publication Publication Date Title
EP0140621B1 (en) Shape memory alloy
JPH06507209A (ja) 珪素と化合物微量添加物とを含有するタンタル合金またはニオブ合金の塑性加工品
JPH0673479A (ja) 高強度高靱性Ａｌ合金
US2491866A (en) Alloy of high density
JPH08939B2 (ja) タングステン―ニッケル―鉄合金の機械的特性値のばらつきを低減する方法
US4128420A (en) High-strength iron-molybdenum-nickel-phosphorus containing sintered alloy
US3982972A (en) Semihard magnetic alloy and a process for the production thereof
US3362799A (en) Ductile ruthenium alloy and process for producing the same
US3243291A (en) High-temperature alloy
US4090875A (en) Ductile tungsten-nickel-alloy and method for manufacturing same
EP0104738A1 (en) Controlled expansion alloy
US3720551A (en) Method for making a dispersion strengthened alloy article
US3161503A (en) Corrosion resistant alloy
US2469718A (en) Alloys
US3395013A (en) High-temperature ductile alloys
US3390984A (en) High-temperature ductile alloys
JPS581051A (ja) モリブデン合金
US2960403A (en) Molybdenum-base alloys
US3141235A (en) Powdered tantalum articles
US3617261A (en) Wrought nickel base superalloys
US2384450A (en) Alloy for permanent magnets
JPS63134642A (ja) ニツケル系粉末冶金合金物体
US3639180A (en) Niobium-base alloys
US3753702A (en) Particulate zinc alloys
US2947624A (en) High temperature alloy