| 有序化对(Fe,Ni)3V合金环境氢脆的影响 |
| |
| 引用本文： | 朱再飞,陈业新,万晓景.有序化对(Fe,Ni)3V合金环境氢脆的影响[J].上海大学学报(自然科学版),2005,11(5):522-526,539. |
| |
| 作者姓名： | 朱再飞 陈业新 万晓景 |
| |
| 作者单位： | 朱再飞（上海大学,材料研究所,上海,200072）
陈业新（上海大学,材料研究所,上海,200072）
万晓景（上海大学,材料研究所,上海,200072） |
| |
| 基金项目： | 国家自然科学基金资助项目(50371050) |
| |
| 摘 要： | 研究了室温下不同有序度的(Fe,Ni)3V在真空、空气和氢气中的力学性能.结果表明不同有序度的(Fe,Ni)3V均不存在空气中水气诱发的环境氢脆;无序态(Fe,Ni)3V在氢气环境下存在轻微的脆性;而有序态在氢气中有强烈的脆化作用,其脆性随有序化程度提高而增加.扫描电镜观察表明无序态合金在不同气氛中断裂时全部为韧性断口;有序态合金在空气和真空中基本上也为穿晶韧性断口,但在氢气中的断口形貌大部分为脆性断口.
|
| 关 键 词： | (Fe Ni)3V 无序态 有序态 环境氢脆 |
| 文章编号： | 1007-2861（2005）05-0522-05 |
| 收稿时间： | 2004-07-16 |
| 修稿时间： | 2004年7月16日 |
Effect of Ordering on Environmental Embrittlement of (Fe, Ni)3V |
| |
| ZHU Zai-fei, CHEN Ye-xin, WAN Xiao-jing.Effect of Ordering on Environmental Embrittlement of (Fe, Ni)3V[J].Journal of Shanghai University(Natural Science),2005,11(5):522-526,539. |
| |
| Authors: | ZHU Zai-fei CHEN Ye-xin WAN Xiao-jing |
| |
| Abstract: | Mechanical properties of disordered and ordered (Fe,Ni)_3V in vacuum, air and hydrogen have been investigated at room temperature. The results show that there is no moisture-induced environmental embrittlement for the disordered and ordered (Fe,Ni)_3V when tested in air. The results also indicate that a small degree of H_2-induced environmental embrittlement was observable for the disordered (Fe,Ni)_3V when tested in gaseous hydrogen. However, the ordered (Fe,Ni)_3V is very sensitive to gaseous H_2-induced environmental embrittlemen, and the embrittlement becomes severer as the degree of order increases. The fracture surface observation shows that the fracture modes of disordered (Fe,Ni)_3V in the above three environments are ductile transgranularly. The fracture modes of ordered (Fe,Ni)_3V in vacuum and air are almost ductile. However, the fracture mode of ordered (Fe,Ni)_3V in H_2 is mostly brittle. |
| |
| Keywords: | (Fe Ni)_3V disordered ordered environmental embrittlement |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
