Development and initial characterization of amorphous metals rich in W and/or RE

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Studies of refractory metal alloys concentrated on two families of such alloys: ternary tungsten alloys and binary T/sub 5/-T/sub 9/ alloys. The former were selected because of the possibility of finding desirable glasses consisting of low-cost components; the latter were chosen because they could be quenched into metallic glasses with high thermal stability and good toughness. Alloys selected for study were prepared by arc-melting and were subsequently rapidly quenched in an arc furnace quenching unit. Considerable difficulties were encountered in preparing metal--metalloid alloys, such as W--B, as well as alloys combining high melting and low melting transition metals, such as ... continued below

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Pages: 58

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Giessen, B.C. & Polk, D.E. January 1, 1978.

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Description

Studies of refractory metal alloys concentrated on two families of such alloys: ternary tungsten alloys and binary T/sub 5/-T/sub 9/ alloys. The former were selected because of the possibility of finding desirable glasses consisting of low-cost components; the latter were chosen because they could be quenched into metallic glasses with high thermal stability and good toughness. Alloys selected for study were prepared by arc-melting and were subsequently rapidly quenched in an arc furnace quenching unit. Considerable difficulties were encountered in preparing metal--metalloid alloys, such as W--B, as well as alloys combining high melting and low melting transition metals, such as W and Ni. Brittleness of ductility as revealed by a bend test was noted. Measurements were made up to 1000 K and resistivity measurements up to 1300 K. The probe for electrical resistivity measurements at high temperatures has been constructed and tested. To determine the elastic (Young's) moduli of new metallic glasses prepared in this program, equipment utilizing the pulse--echo method was set up.

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Pages: 58

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Dep. NTIS, PC A04/MF A01.

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  • Other Information: Portions of this document are illegible

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  • Report No.: UCRL-13989
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/6299368 | External Link
  • Office of Scientific & Technical Information Report Number: 6299368
  • Archival Resource Key: ark:/67531/metadc1111950

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • January 1, 1978

Added to The UNT Digital Library

  • Feb. 22, 2018, 7:45 p.m.

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  • March 22, 2018, 7:42 p.m.

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Giessen, B.C. & Polk, D.E. Development and initial characterization of amorphous metals rich in W and/or RE, report, January 1, 1978; United States. (digital.library.unt.edu/ark:/67531/metadc1111950/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.