TC16钛合金冷镦变形的特征
发布时间：2018-08-26 17:18
【摘要】：通过快速顶锻实验研究退火态TC16钛合金冷镦变形行为,利用显微硬度计、透射电镜及XRD技术分析TC16钛合金冷镦变形后的组织和性能变化。结果表明,退火态TC16钛合金具有良好的塑性变形能力,能实现无裂纹1/8锻压比冷镦变形。冷镦样品不均匀变形明显,形成一字双叉剪切带,硬度值在剪切带区域最大。锻压比小于1/4时以位错强化为主,大于1/4时以细晶强化为主。锻压比为1/4时冷镦样品硬度梯度最大,力学性能不稳定,锻压比大于1/4后,力学性能逐渐趋于稳定。
[Abstract]:The cold heading deformation behavior of annealed TC16 titanium alloy was studied by rapid upsetting test. The microstructure and properties of TC16 titanium alloy after cold heading deformation were analyzed by microhardness tester, transmission electron microscope and XRD technique. The results show that the annealed TC16 titanium alloy has good plastic deformation ability and can realize 1 / 8 forging ratio cold heading deformation without crack. The inhomogeneous deformation of the cold heading sample is obvious, forming a double cross shear band, and the hardness is the largest in the shear band region. When the forging ratio is less than 1 / 4, the dislocation strengthening is dominant, and the fine grain strengthening is more than 1 / 4. When the forging ratio is 1 / 4, the hardness gradient is the largest and the mechanical properties are unstable. When the forging ratio is more than 1 / 4, the mechanical properties tend to be stable.
【作者单位】： 大连理工大学;萍乡学院;大连盛辉钛业有限公司;
【基金】：中国博士后科学基金(2014M551074) 江西省教育厅科学技术研究项目(GJJ13787)
【分类号】：TG319
[Abstract]:The cold heading deformation behavior of annealed TC16 titanium alloy was studied by rapid upsetting test. The microstructure and properties of TC16 titanium alloy after cold heading deformation were analyzed by microhardness tester, transmission electron microscope and XRD technique. The results show that the annealed TC16 titanium alloy has good plastic deformation ability and can realize 1 / 8 forging ratio cold heading deformation without crack. The inhomogeneous deformation of the cold heading sample is obvious, forming a double cross shear band, and the hardness is the largest in the shear band region. When the forging ratio is less than 1 / 4, the dislocation strengthening is dominant, and the fine grain strengthening is more than 1 / 4. When the forging ratio is 1 / 4, the hardness gradient is the largest and the mechanical properties are unstable. When the forging ratio is more than 1 / 4, the mechanical properties tend to be stable.
【作者单位】： 大连理工大学;萍乡学院;大连盛辉钛业有限公司;
【基金】：中国博士后科学基金(2014M551074) 江西省教育厅科学技术研究项目(GJJ13787)
【分类号】：TG319
【参考文献】
相关期刊论文 前6条
1 王富强;沙春鹏;孙小岚;;TC16钛合金的冷镦组织与性能[J];材料与冶金学报;2013年03期
2 姚宗勇;刘庆;A.Godfrey;刘伟;;大应变量冷轧AA1050铝合金微观组织与织构的演变[J];金属学报;2009年06期
3 汪冰峰;杨扬;;钛合金TC16中绝热剪切带的微观结构演化[J];中国有色金属学报;2007年11期
4 吴崇周;李兴无;;TC16钛合金室温变形特性研究[J];钛工业进展;2006年06期
5 沙爱学;王庆如;李兴无;;BT16钛合金紧固件加工工艺分析[J];稀有金属材料与工程;2006年03期
6 李凤珍,刘兆晶,金铨,俞泽民;铝及铝铁合金的加工软化机理[J];中国有色金属学报;1997年01期
【相似文献】
相关期刊论文 前10条
1 孙富;冷镦工艺的实践及其经济效益分析[J];现代零部件;2004年08期
2 赵自义,雍治文,吴从善;冷镦钢盘条冷镦开裂原因分析[J];金属制品;2005年05期
3 宋强;倪达;;中碳冷镦钢冷镦爆裂原因分析[J];冶金标准化与质量;2007年03期
4 高永彬;张力;亓奉友;孙理;陈亮;;冷镦钢盘条冷镦不合格原因分析[J];金属制品;2008年03期
5 郑雨e，
本文编号：2205612
本文链接：https://www.wllwen.com/kejilunwen/jiagonggongyi/2205612.html
