Recrystallizaiton Behavior of Directionally Solidified DZ4 Superalloy

来源 :材料热处理学报 | 被引量 : 0次 | 上传用户:jizhe621
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
This article investigated effects of degrees of deformation, heat treatment temperatures and holding times on the recrystallization behavior of directionally solidified DZ4 superalloy. The results showed that, recrystallization of DZ4 superalloy could take place during solution heat treatment after certain degrees of cold work and depths of recrystallization increased with increasing degrees of deformation and heat treatment temperature. At the temperature below γ solvus,prolonged holding times did not play an important role in improving recrystallization depths. Moreover, prevention measures for recrystallization of directionally solidified blades were given.
其他文献
目的观察加味八珍汤对艾滋病抗反转录病毒治疗(ART)诱发高乳酸血症的作用。方法 70例艾滋病ART后出现高乳酸血症患者,采用抽签法随机分为两组,治疗组35例给予ART联合加味八珍
目的探讨长期吸入丙酸氟替卡松对哮喘儿童骨代谢的影响。方法 41例支气管哮喘患儿随机分成两组,观察组20例吸入丙酸氟替卡松(FP),对照组21例吸入二丙酸倍氯米松(BDP),疗程均
对岷江上游农林边界的影响域进行研究,以提高该区管理农田和林地的水平.共调查3种类型农林边界10条样带,采用移动窗口法对植物多样性的数据进行分析,结果表明,当窗口宽度达到
目的探讨重组杆状病毒作为哺乳动物基因转导载体的可行性及其转导特点.方法应用Bac-to-Bac杆状病毒表达系统制备重组杆状病毒Bac-GFP,以不同MO1的病毒和不同终浓度丁酸钠感染
目的 检测戊型肝炎病毒 (HEV)摩洛哥株非编码区 (UTR)序列 ,探讨HEV非编码区序列能否作为其基因型分型的依据。方法 使用基于RNA连接酶的cDNA末端快速扩增法 (RLM RACE)扩
本文研究砌体在剪-压复合受力下的破坏准则和砌体静力抗剪强度与抗震抗剪强度的计算方法.根据最小耗能原理和正交各向异性材料的破坏准则,确立了砌体在剪-压作用下的相关关系
利用透射电子显微镜观察(TEM)和X射线衍射技术(ODFs分析),研究了电场对Al-Mn-Mg合金的回复和再结晶组织演变、再结晶织构的形成和发展的影响.结果表明,电场对再结晶的影响其
In the article is presented the brittleness study of boron nitride coatings deposited on cutting edges made of cemented carbides by the pulse-plasma method (PPD
The effects of heat treatment on microstructure and hardness of laser surface-clad Ni21+20%WC+0.5%CeO2 on the heat-resistant cast iron were investigated by mean
Copper ions were implanted into a AISI420 martensitic stainless steel (SS) by metal vapor vacuum arc (MEVVA) with a dose range 0.2 ×1017 ~5.0×1017 cm-2 at the