基于<strong>Ce</strong>变质处理的<strong>TWIP</strong>钢凝固组织细化

基于Ce变质处理的TWIP钢凝固组织细化

李根, 兰鹏, 张家泉

Solidification Structure Refinement in TWIP Steel by Ce Inoculation

LI Gen, LAN Peng, ZHANG Jiaquan

表2 Ce变质处理产物与TWIP钢凝固相间错配度^{[24,25,26,27]}

Table 2 Planar disregistry between Ce inoculation products and the solidification phase of TWIP steel^{[24,25,26,27]}

Phase	Crystal system	a / nm	c / nm	α / (10^-6 ℃^-1)	Case	δ / %
γ-Fe	fcc	0.3620	-	25	-	-
Ce₂O₃	hex	0.3891	0.6063	10	(0001) $_{C e_{2} O_{3}}$ //(100) $_{γ - F e_{}}$	6.2
					(0001) $_{C e_{2} O_{3}}$ //(100) $_{γ - F e_{}}$	21.0
					(0001) $_{C e_{2} O_{3}}$ //(100) $_{γ - F e_{}}$	21.0
					(0001) $_{C e_{2} O_{3}}$ //(100) $_{γ - F e_{}}$	19.5
Ce₂O₂S	hex	0.4001	0.6830	10	(0001) $_{C e_{2} O_{2} S}$ //(100) $_{γ - F e_{}}$	5.2
					(0001) $_{C e_{2} O_{2} S}$ //(100) $_{γ - F e_{}}$	24.7
					(0001) $_{C e_{2} O_{2} S}$ //(100) $_{γ - F e_{}}$	21.1