Results 221 to 230 of about 43,335 (258)
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1996
In general, materials tend to increase in strength as their temperature is lowered. The deformation of metals occurs with the movement of crystal-lattice dislocations. As the temperature is raised, the thermal energy of the vibrating atoms assists this movement.
Frederick J. Edeskuty, Walter F. Stewart
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In general, materials tend to increase in strength as their temperature is lowered. The deformation of metals occurs with the movement of crystal-lattice dislocations. As the temperature is raised, the thermal energy of the vibrating atoms assists this movement.
Frederick J. Edeskuty, Walter F. Stewart
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Reversible Temper Embrittlement
Annual Review of Materials Science, 1977Recent work with emphasis on the direct measurement of segregation of impurities and alloying elements as they relate to temper embrittlement of low-alloy steels is reported. Low-alloy steels tempered between 320 to 525/sup 0/C are embrittled by the segregation of impurity and alloy elements to the grain boundaries. Segregation occurs during tempering.
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1968
Liquid metal embrittlement is a generic term which refers to at least three distinctly different phenomena. The type of embrittlement which has received most attention in recent years appears to arise from a process in which atoms of the liquid adsorb preferentially at sites of high stress concentration, leading to a reduction in cohesive energy, and ...
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Liquid metal embrittlement is a generic term which refers to at least three distinctly different phenomena. The type of embrittlement which has received most attention in recent years appears to arise from a process in which atoms of the liquid adsorb preferentially at sites of high stress concentration, leading to a reduction in cohesive energy, and ...
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Hydrogen Embrittlement Testing
1974Description Nineteen papers cover internal hydrogen embrittlement, testing for relative susceptibility, testing for hydrogen pickup during processing, mechanical delay-time test, hydrogen defection methods, hydrogen environment ...
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1968
The extensive literature relating to temper-embrittlement phenomena is reviewed critically, and various aspects are examined, particularly as related to the effects of progressive increments of molybdenum in a series of low-alloy steels. The experimental results show over-all agreement with the trends reported in general terms in the literature ...
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The extensive literature relating to temper-embrittlement phenomena is reviewed critically, and various aspects are examined, particularly as related to the effects of progressive increments of molybdenum in a series of low-alloy steels. The experimental results show over-all agreement with the trends reported in general terms in the literature ...
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Irradiation embrittlement mitigation
1995Neutron irradiation affects the material properties, and hence the structural integrity, of reactor pressure vessels in nuclear power plants. Mitigation of irradiation damage is one of the major issues within nuclear plant life management. An overview is given of proposed and utilized mitigation methods. Low-leakage loading schemes are commonly used in
Planman, Tapio +2 more
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