Effect of purity, prestrain, and cooling rate on hydrogen strengthening in niobium single crystals
Conference
·
OSTI ID:5349049
Hydrogen strengthening of niobium at approximately 77/sup 0/K depends on purity, prestrain at 295/sup 0/K and cooling rate from 295/sup 0/K. Increasing purity, prestrain and decreasing cooling rate reduce hydrogen strengthening. High purity alloys exhibit hydride softening, a decrease in flow stress with increasing hydrogen content.
- Research Organization:
- Case Western Reserve Univ., Cleveland, Ohio (USA). Dept. of Metallurgy and Materials Science
- OSTI ID:
- 5349049
- Report Number(s):
- COO-1676-45; CONF-770613-5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
CHEMICAL REACTIONS
ELEMENTS
FLOW STRESS
HARDENING
HEAT TREATMENTS
HYDRIDATION
LOW TEMPERATURE
MEDIUM TEMPERATURE
METALS
NIOBIUM
REFRACTORY METALS
STRESSES
TRANSITION ELEMENTS
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
CHEMICAL REACTIONS
ELEMENTS
FLOW STRESS
HARDENING
HEAT TREATMENTS
HYDRIDATION
LOW TEMPERATURE
MEDIUM TEMPERATURE
METALS
NIOBIUM
REFRACTORY METALS
STRESSES
TRANSITION ELEMENTS