age hardening meaning in Hindi

Examples

1. The strength is achieved by age hardening.
2. Typically a slow process, depending on temperature, this is often referred to as " age hardening ".
3. Tempered wire is most useful where the properties of beryllium copper are desired, but age hardening of finished parts is not practical.
4. They are however, essential when investigating molecular or atomic effects, such as age hardening in aluminium alloys, or the microstructure of polymers.
5. GP-zones are associated with the phenomenon of age hardening, whereby room-temperature reactions continue to occur within a material through time, resulting in changing physical properties.
6. In age hardening or precipitation strengthening varieties, alloying additions of aluminum and titanium combine with nickel to form the intermetallic compound Ni3 ( Ti, Al ) or gamma prime ( ? ).
7. However aluminium, while being light and strong, is not able to withstand temperatures much over 127 �C; above 127 �C the aluminium gradually loses its properties that were brought about by age hardening.
8. The precipitates contributing to age hardening are fine and their amount increases as Gd content increases, and this result in increased peak hardness, tensile strength and 0.2 % proof stress but decreased elongation.
9. All investigated alloys exhibit remarkable age hardening by precipitation of ? phase with DO19 crystal structure and ? phase with BCO crystal structure, even at aging temperatures higher than 200 �C . Both precipitates are observed in peak-aged specimens.
10. "' Precipitation hardening "', also called "'age hardening "', is a heat treatment technique used to increase the yield strength of malleable materials, including most structural alloys of aluminium, magnesium, nickel, titanium, and some steels and stainless steels.