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| 工艺参数组合对TA7钛合金拉伸性能的影响 | |
| 引用本文： | 姚泽坤,孙红兰,张东亚,郭鸿镇,魏寿庸,车安达. 工艺参数组合对TA7钛合金拉伸性能的影响[J]. 重型机械, 2012, 0(3): 74-77 |
| 作者姓名： | 姚泽坤 孙红兰 张东亚 郭鸿镇 魏寿庸 车安达 |
| 作者单位： | 1. 西北工业大学材料学院,陕西西安,710072 2. 宝鸡有色金属加工厂,陕西宝鸡,721014 3. 江西景航航空锻铸有限公司,江西景德镇,333437 |
| 摘 要： | 通过对TA7钛合金拟水平正交实验和对室温拉伸性能检测结果的方差分析,获得了具有较好性能匹配的变形工艺参数组合:即坯料加热温度1040℃,应变速率0.05s-1,变形量50％.金相观察及断口形貌的研究表明,TA7钛合金在高于相变点温度始锻易获得尺寸稍大的初生α和尺寸小的再结晶α混合的双套组织,这种组织在拉伸过程中α颗粒易在原子密排面被拉脱. |
| 关 键 词： | TA7钛合金 拟水平正交实验 拉伸性能 |
Effect of process parameters on tensile property of TA7 titanium alloy |
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| YAO Ze-kun , SUN Hong-lan , ZHANG Dong-ya , GUO Hong-zhen , WEI Shou-yong , CHE An-da. Effect of process parameters on tensile property of TA7 titanium alloy[J]. Heavy Machinery, 2012, 0(3): 74-77 | |
| Authors: | YAO Ze-kun SUN Hong-lan ZHANG Dong-ya GUO Hong-zhen WEI Shou-yong CHE An-da |
| Affiliation: | 1.School of Material Science and Engineering,Northwestern Polytechnical University,Xi’an 710072,China;2.Baoji Nonferrous Metals Processing Factory,Baoji 721014,China;3.Jiangxi Jinghang Aviation Forging & Casting Co.,Ltd.,Jingdezhen 333437,China) |
| Abstract: | The combination of deformation process parameters matched with good tensile property was achieved after TA7 titanium alloy imitating-level orthogoml experiment and variance analysis of tensile property test result at room temperature.The combination of deformation process parameters is billet heating temperature 1040℃,strain rate 0.05 s-1,deformation 50%.The metallography and rupture scanning results show that the TA7 titanium alloy is easy to gain the two-suit structure with large size primary α and small size recrystallization α phase grains at the initial period of phase transformation point temperature.The α grains are easily disengaged on atom dense face in sample with this microstructure at tensile test. |
| Keywords: | TA7 titanium alloy imitating level orthogonal experiment tensile properties |
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