摘要
选用经过电子束熔炼后的高纯钽锭进行开坯轧制,研究该钽板织构随压下量与退火温度的变化,研究结果表明:在850℃退火的板材,延续轧制板材的织构特征,存在由{100}<110>组分和γ织构及其强弱变化所构成的织构梯度。在1 000℃退火的板材,织构组分({100}<110>组分和γ织构)没有明显变化,仅仅强度提高。在1 150℃退火的板材,表面{100}<110>织构衍生出新的{112}<110>组分。在1 300℃退火的板材,γ纤维织构出现{111}<112>取向的择优生长。
A high-purity tantalum ingot after electron beam melting was used for breakdown rolling for studying the texture of the tantalum plate as a function of reduction and annealing temperature. The results show that the sheet material annealed at 850 ℃ will still have the texture characteristics of the rolled sheet, with a texture gradient composed of {100} <110> components and γ texture and their strength variations. The sheet annealed at 1 000 ℃ hasn′t any obvious change in the texture components({100} <110> components and γ texture), just has improved its strength. For the sheet annealed at 1 150 ℃, a new {112} <110> component has been derived on the surface {100} <110> texture. And after the sheet is annealed at 1 300 ℃, the γ-fiber texture shows {111}<112>-oriented preferential growth.
作者
谢盼平
袁思成
胡立坤
蒋任翔
张林
彭智
郑峰
XIE Pan⁃ping;YUAN Si⁃cheng;HU Li⁃kun;JIANG Ren⁃xiang;ZHANG Lin;PENG Zhi;ZHENG Feng(School of Materials Science and Engineering,Central South University,Changsha 410083,Hunan,China;Changsha Southern Tantalum Niobium Co Ltd,Changsha 410083,Hunan,China)
出处
《矿冶工程》
CAS
CSCD
北大核心
2019年第6期129-132,137,共5页
Mining and Metallurgical Engineering
关键词
高纯钽
轧制
织构梯度
退火织构
择优生长
high-purity tantalum
rolling
texture gradient
annealing texture
preferential growth orientation
