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| Fe-14Co-10Ni合金的高温塑性变形及热加工图 | |
| 引用本文： | 厉勇,王春旭,刘宪民,田志凌,傅万堂.Fe-14Co-10Ni合金的高温塑性变形及热加工图[J].材料热处理学报,2009,30(6). |
| 作者姓名： | 厉勇 王春旭 刘宪民 田志凌 傅万堂 |
| 作者单位： | 1. 钢铁研究总院结构材料研究所,北京,100081;中国钢研科技集团有限公司,北京,100081 2. 钢铁研究总院结构材料研究所,北京,100081 3. 中国钢研科技集团有限公司,北京,100081 4. 燕山大学亚稳材料制备技术与科学国家重点实验室,河北,秦皇岛066004 |
| 摘 要： | 利用Gleeble-3500热力模拟试验机,在温度为850～1150℃,应变速率为0.1～10s~(-1)的条件下,对具有高强韧性的Fe-14Co-10Ni基合金(16CoNi)在高温塑性变形过程中的动态再结晶行为及其热加工图进行了研究.试验结果表明,16CoNi合金的具有较高的动态再结晶温度,完全动态再结晶晶粒的平均尺寸随着Zener-Hollomon参数的增加而减小,并得到了动态再结晶晶粒尺寸与Z参数之间的定量关系.基于动态材料模型建立了16CoNi合金的热加工图(Processing Maps),当以0.1s~(-1)的应变速率,在1050℃变形时,合金的能量消耗效率达到最大值34%. |
| 关 键 词： | 16CoNi合金 高温塑性变形 动态再结晶 加工图 |
Hot plastic deformation and processing maps of 14Co-10Ni-Fe alloy |
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| LI Yong,WANG Chun-xun,LIU Xian-min,TIAN Zhi-ling,FU Wan-tang.Hot plastic deformation and processing maps of 14Co-10Ni-Fe alloy[J].Transactions of Materials and Heat Treatment,2009,30(6). | |
| Authors: | LI Yong WANG Chun-xun LIU Xian-min TIAN Zhi-ling FU Wan-tang |
| Abstract: | Using a Gleeble-3500 simulator the dynamic reerystallization behavior and processing map of 16CoNi alloy with high strength and toughness were investigated at 850～1150℃ with the strain rate of 0.1 ～ 10s~(-1) . The results show that 16CoNi alloy has a higher dynamic recrystallization temperature. The size of fully dynamic recrystallization grains decreases with increasing Zener-Hollomon parameter. The relationship formula between the size of dynamic recrystallization grains and Zener-Hollomon parameter is obtained. The processing map for 16CoNi alloy is established and analyzed loased on the dynamic materials model. At 1050℃ and stain rate 0. 1s~(-1) the efficiency of energy dissipation for the alloy reaches the peak value of 34%. |
| Keywords: | 16CoNi alloy hot plastic deformation dynamic recrystallization processing map |
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