HUANG Zheng Institute of Physics
,
Academia Sinica
,
Beijing
,
ChinaYAO Mei Harbin Institute of Technology
,
Harbin
,
China Institute of Physics
,
Academia Sinica
,
Beijing 100080
,
China
金属学报(英文版)
On the basis of analysis of low carbon steel fracture macro-features and micro-processes at low temperature,the definition was given of the characteristic transition temperature of brittleness,T_(pm),and its physical meaning was expounded.Discussion was carried out of phys- ical characteristic of variation at T_(pm) in respect of the fracture toughness and property of crack arrest.In addition,research was made on the application of T_(pm),which can give infor- mation about the transition of the fracture toughness,the property of crack arrest and critical crack size,to estimation the brittleness of low carbon steel at low temperatures.
关键词:
low carbon steel
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