交叉轧制周期对高纯<strong>Ta</strong>板变形及再结晶梯度的影响

交叉轧制周期对高纯Ta板变形及再结晶梯度的影响

祝佳林,刘施峰,曹宇,柳亚辉,邓超,刘庆

Effect of Cross Rolling Cycle on the Deformed and Recrystallized Gradient in High-Purity Tantalum Plate

Jialin ZHU,Shifeng LIU,Yu CAO,Yahui LIU,Chao DENG,Qing LIU

表1 周向轧制的具体参数

Table 1 Rolling scheme of 1 and 2 cycle samples, respectively

Rolling cycle	Rolling pass	Entrance thickness	Exit thickness mm	Rolling gap geometry	Strain per pass	Total rolling reduction
		Entrance thickness	Exit thickness mm	Rolling gap geometry	Strain per pass	Total rolling reduction
		mm		h^-1	%	%
First cycle	1	20.0	17.2	2.01	14.00	14.0
	2	17.2	14.7	2.22	14.53	26.5
	3	14.7	12.6	2.37	14.28	37.0
	4	12.6	10.8	2.56	14.28	46.0
	5	10.8	9.3	2.72	13.89	53.5
	6	9.3	8.0	2.95	13.98	60.0
	7	8.0	6.9	3.15	13.75	65.5
	8	6.9	6.0	3.29	13.04	70.0
Second cycle	9	6.0	5.3	3.31	11.67	73.5
	10	5.3	4.7	3.46	11.32	76.5
	11	4.7	4.2	3.55	10.64	79.0
	12	4.2	3.8	3.54	9.52	81.0
	13	3.8	3.5	3.36	7.89	82.5
	14	3.5	3.2	3.66	8.57	84.0
	15	3.2	3.0	3.23	6.25	85.0
	16	3.0	2.8	3.45	6.67	87.0