Published January 1975 | Version v1
Report Restricted

Role of electron concentration in softening and hardening of ternary molybdenum alloys

Creators

Description

Effects of various combinations of hafnium, tantalum, rhenium, osmium, iridium, and platinum in ternary molybdenum alloys on alloy softening and hardening were determined. Hardness tests were conducted at four test temperatures over the temperature range 77 to 4110K. Results showed that hardness data for ternary molybdenum alloys could be correlated with anticipated results from binary data based upon expressions involving the number of s and d electrons contributed by the solute elements. The correlation indicated that electron concentration plays a dominant role in controlling the hardness of ternary molybdenum alloys. (STAR)

Availability note (English)

MF available from INIS under the Report Number.

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Additional details

Additional titles

Augmented title (English)
Hf, Ta, Re, Os, Ir, or Pt

Publishing Information

Imprint Pagination
23 p.
Report number
N--75-14888

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
7227852
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CHEMICAL COMPOSITION; DISTRIBUTION; ELECTRONS; HAFNIUM ALLOYS; HARDNESS; HIGH TEMPERATURE; IRIDIUM; LOW TEMPERATURE; MECHANICAL PROPERTIES; MEDIUM TEMPERATURE; MOLYBDENUM BASE ALLOYS; OSMIUM; PLATINUM; RHENIUM ALLOYS; TANTALUM ALLOYS; TERNARY ALLOY SYSTEMS
Descriptors DEC
ALLOY SYSTEMS; ALLOYS; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; LEPTONS; METALS; MOLYBDENUM ALLOYS; PLATINUM METALS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS

Optional Information

Secondary number(s)
NASA-TN-D--7893; E--8101.