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5 碳化物和稀土夹杂物的最小错配度

Table 5 Calculation of minimum disregistry between rare earth inclusions and carbides

	[uvw]_s	[uvw]_n	d_[uvw]s	d_[uvw]n	θ / (°)	δ / %
(1010)Ce₂O₃//(0110)M₂C	$[\bar{1} 2 \bar{1} 0]$	$[0001]$	3.891	4.650	0	7.82
	$[\bar{1} 2 \bar{1} 1]$	$[\bar{1} 2 \bar{1} 2]$	7.201	7.520	5.273
	$[0001]$	$[\bar{1} 2 \bar{1} 0]$	6.059	5.910	0
(1010)Ce₂O₂S//(0110)M₂C	$[\bar{1} 2 \bar{1} 0]$	$[0001]$	3.976	4.650	0	11.84
	$[\bar{1} 2 \bar{1} 1]$	$[\bar{1} 2 \bar{1} 2]$	7.947	7.520	8.178
	$[0001]$	$[\bar{1} 2 \bar{1} 0]$	6.882	5.910	0
(1010)Ce₂O₃//(110)MC	$[\bar{1} 2 \bar{1} 0]$	$[010]$	3.891	4.180	0	3.35
	$[0001]$	$[110]$	6.059	5.911	0
	$[\bar{2} 110]$	$[111]$	7.201	7.240	2.340
(0001)Ce₂O₂S//(110)MC	$[\bar{1} 2 \bar{1} 0]$	$[010]$	3.976	4.180	0	10.25
	$[\bar{1} 010]$	$[001]$	6.886	5.911	0
	$[\bar{2} 110]$	$[012]$	7.952	7.240	5.266