稀土元素<strong>Ce</strong>对<strong>T15</strong>高速钢铸态组织与力学性能的影响

稀土元素Ce对T15高速钢铸态组织与力学性能的影响

屠后田, 胡小强, 杨仁贤, 王谦, 李殿中

Influence of Cerium on Microstructure and Mechanical Properties of Cast T15 High Speed Steel

TU Houtian, HU Xiaoqiang, YANG Renxian, WANG Qian, LI Dianzhong

表4 两类一次碳化物和稀土夹杂物的晶体学参数

Table 4 Crystallographic parameters of two primary carbides and RE-containing inclusions

Phase	Lattice structure	Space group	Lattice parameter
M₂C	Hexagonal	P63/mmc	a = 2.955, c = 4.650
MC	Cubic	Fm $\bar{3}$ m	a = 4.180
Ce₂O₂S	Hexagonal	P $\bar{3}$ m1	a = 3.976, c = 6.882
Ce₂O₃	Hexagonal	P $\bar{3}$ m1	a = 3.891, c = 6.059