【Mechanical Equipment Technology Exchange Edition】Mechanical Equipment 【Daily Question】20190727
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This post was last edited by wawa*n*ntaozi on 2019-7-28 22:14. Question: What is the cold brittleness of metallic materials? There are no answers provided for this series of posts; fellow netizens are free to share their own opinions – just reply with what you understand. Replies earn rewards ranging from 5 to 15 points; all forum members are welcome to participate actively and support the development of the forum! ! ! Chemical Equipment and Machinery
Cold brittleness refers to the phenomenon in which, as the temperature decreases, the strength of metal materials increases while their toughness decreases.
As the temperature decreases, the strength of most steels increases, while their toughness decreases. The brittleness exhibited by metal materials at low temperatures is known as cold brittleness. The upper temperature at which a material transitions from ductile failure to brittle failure is known as the ductile-brittle transition temperature. To prevent low-temperature brittle failure, the minimum allowable operating temperature of steel should be higher than the upper limit of the ductile-brittle transition temperature
Cold brittleness refers to the phenomenon in which, as the temperature decreases, the strength of metal materials increases while their toughness decreases.
The phenomenon in which the impact value of metal materials decreases significantly at low temperatures is known as cold brittleness.
Cold brittleness refers to the phenomenon in which, as the temperature decreases, the strength of metal materials increases while their toughness decreases.
When the temperature drops to a certain range, the impact toughness of steel decreases significantly, and the fracture pattern changes from one characterized by ductile fracture to one characterized by brittle fracture.
As the temperature decreases, the strength of most steels increases, while their toughness decreases. The brittleness exhibited by metal materials at low temperatures is known as cold brittleness.
As the temperature decreases, the strength of most steels increases, while their toughness decreases. The brittleness exhibited by metal materials at low temperatures is known as cold brittleness. The upper temperature at which a material transitions from ductile failure to brittle failure is known as the ductile-brittle transition temperature. To prevent low-temperature brittle failure, the minimum allowable operating temperature of steel should be higher than the upper limit of the ductile-brittle transition temperature.
At low temperatures, the impact resistance of the material decreases significantly
The phenomenon whereby metals become very brittle under certain temperature conditions