田航,周军,公维佳,张海龙.Nb含量对Zr-xNb合金显微组织及再结晶过程的影响[J].稀有金属材料与工程,2017,46(12):3994~3999.[Tian hang,Zhou Jun,Gong Weijia,Zhang Hailong.Influence of Nb content on microstructure and recrystallization process of Zr-xNb alloys[J].Rare Metal Materials and Engineering,2017,46(12):3994~3999.]
Nb含量对Zr-xNb合金显微组织及再结晶过程的影响
投稿时间:2015-11-02  修订日期:2016-08-23
中文关键词:  锆合金,再结晶,显微组织,第二相
基金项目:国家863项目基金资助(2012AA03A507)
中文摘要:
      作为第三代锆合金的主要合金元素,Nb元素的作用引起了广泛关注。本文通过透射电子显微镜、光学显微镜、显微硬度计等手段研究了Nb含量对Zr-xNb(x=0, 0.3, 0.7, 1.0)合金显微组织及再结晶过程的影响。结果显示,随着Nb含量的增加,Zr-xNb合金中第二相的数量迅速增多,平均尺寸逐渐减小,其再结晶过程逐渐减慢;尤其在Zr-1Nb合金中,第二相对再结晶过程的阻碍作用明显加强。Zr-0.3Nb合金中的第二相主要为Zr(Nb,Fe,Cr)2,Zr-1Nb中第二相主要为β-Nb。
Influence of Nb content on microstructure and recrystallization process of Zr-xNb alloys
英文关键词:Zirconium  alloy, recrystallization, microstructure,Precipitate
英文摘要:
      Niobium acts as a main alloying element in the third generation zirconium alloys. The role of Nb element in the alloys is greatly concerned. The influences of Nb content on the microstructure and recrystallization process of Zr-xNb (x=0, 0.3, 0.7, 1.0) alloys were studied by means of transmission electron microscopy (TEM), optical microscopy (OM) and Vickers micro-hardness testing. The results show that with increasing Nb content the quantity of the precipitates increases and the mean size of the precipitate particles decreases. Meanwhile, the recrystallization process is slowed down by the precipitates, especially in the case of Zr-1Nb alloy. The main precipitates were found to be Zr(Nb,Fe,Cr)2 and β-Nb in Zr-0.3Nb and Zr-1Nb, respectively.
作者单位E-mail
田航 西部新锆核材料科技有限公司 tianhangdap@foxmail.com 
周军 西部新锆核材料科技有限公司  
公维佳 北京科技大学 新金属材料国家重点实验室  
张海龙 北京科技大学 新金属材料国家重点实验室 hlzhang@ustb.edu.cn 
摘要点击次数: 513
全文下载次数: 144
查看全文  查看/发表评论  下载PDF阅读器
关闭