Molybdenum and tungsten fibers as a strengthener of a heat-resistant composite

Journal Article · Mon Jan 01 04:00:00 EST 1973 · Izv. Vyssh. Ucheb. Zaved., Chern. Met., no. 4, pp. 153-155

OSTI ID:4324500

Koval, A D; Natapov, E B; Lezhenko, G G; Seyn, V I; Shegay, A A; Shmakov, A M

Work was conducted to study certain mechanical properties of wire, made at the Uzbek Refractory and Heat-Resistant Materials Combine (URHRMC), and alloy TZM, and to explore the possibilities of utilizing the strength of molybdenum wire in a composite. Materials for this study were molybdenum and tungsten wires grades MCh and MK, made at URHRMC, experimental wire ChZM, and tungsten wire grade VA. A matrix of alloy EI435 was used with filler wire 0.5 mm in diameter. Volume content of wire in the alloy was 24%. Results of determining tensile strength showed that wire MCh had the lowest mechanical properties at 800 to 1200 deg C. Experimental alloy ChZM surpasses the short-time strength of molybdenum alloys TZM, MCh, MK, and ChZM (not heat treated) after heat treatment. Tensile strength of EI435 + 30% MCh at 1100 deg C in the initial state and after annealing for 500 hours was l1 to 14 kg/mm/sup 2/. The composite EI435 + 24% ChZM has the best properties above 1100 deg C and shows the best prospects as a filler wire reinforcing material. (JPRS)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-29-021498
• OSTI ID: 4324500
• Journal Information: Izv. Vyssh. Ucheb. Zaved., Chern. Met., no. 4, pp. 153-155, Journal Name: Izv. Vyssh. Ucheb. Zaved., Chern. Met., no. 4, pp. 153-155; ISSN IVUMA
• Country of Publication: USSR
• Language: Russian

Related Subjects

*COMPOSITE MATERIALS-- MECHANICAL PROPERTIES
*FILAMENTS-- MECHANICAL PROPERTIES
*MOLYBDENUM-- WIRES
*TUNGSTEN-- WIRES
ALLOY-TZM
N50230* --Metals
Ceramics
& Other Materials--Metals & Alloys--Properties
Structure & Phase Studies
REINFORCED MATERIALS
USES