共被期刊论文引用了3次
您的检索式：您选中1篇文献正在查看引证文献汇总
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Structure evolution of Y_2O_3 nanoparticle/Fe composite during mechanical milling and annealing显示文摘Fe-25 wt% Y2O3composite powders have been fabricated by mechanical milling(MM) Fe powders of 100 μm in diameter and Y2O3nanoparticles in an argon atmosphere for the milling periods of4,8,12,24,36,and 48 h,respectively.The features of these powders were characterized by using X-ray diffraction(XRD),scanning electron microscopy(SEM),electron probe micro analyzer(EPMA) and transmission electron microscopy(TEM).The experimental results showed that the mean particle size and crystalline size of MM powders decreased with the milling time increasing.All the elements distributed homogenously inside the powders after 48 h of MM.The lattice constant of the matrix α-Fe kept constant with the milling time,and no solid solution took place during MM process.After 8 h of MM,the α-Fe in each powder became nanocrystalline.After 48 h of MM,Y2O3changes from nanostructure into amorphous structure,and the crystalline size of α-Fe further decreased to 10 nm.The Y2O3in the powders mechanically milled for 48 h kept the amorphous structure after being annealed at 400 1C,and starts to crystallize when the powders are annealed at 600 1C.The amorphous Y2O3contains a small amount of Fe,and crystalline FeYO3appears at 800 1C. | Tong Liu Hailong Shen Chenxi Wang Wusheng Chou | 2013 | Progress in Natural Science:Materials International2013，23，4： | 2 |
| 2 | 9Cr氧化物弥散强化钢在超临界水中的耐蚀性显示文摘研究了氧化物弥散强化钢9Cr-ODS(K3)在500℃/25MPa条件下的腐蚀行为,对比分析了K3、两种非ODS钢K1(12Cr)和K2(9Cr)在超临界水(SCW)中的抗腐蚀性能。通过扫描电镜-电子能谱(SEM-EDX)、X射线衍射(XRD)、腐蚀增重等分析了氧化膜的显微形貌、结构、相组成及腐蚀动力学规律。结果表明,K1和K2钢在超临界水中腐蚀后,氧化膜中存在许多小孔,而K3钢中小孔数量很少。K3钢在超临界水中生成的氧化膜分为三层结构,分别为外层氧化膜、内层氧化膜和内氧化区。外层氧化膜为Fe3O4,内层氧化膜为FeCr2O4和Fe3O4相,内氧化区是合金元素和氧由氧化膜向基体逐渐过渡的区域。在超临界水中,K1、K2和K3钢的腐蚀动力学均遵循抛物线规律,K3抗腐蚀性能优于9Cr的K2钢,甚至优于12Cr的K1。 | 尹开锯 张强 邱绍宇 唐睿 | 2014 | 腐蚀与防护2014，35，6： | 1 |
| 3 | 电弧超声激励频率对MGH956合金TIG焊接头的影响显示文摘为减少MGH956合金熔焊焊缝内的气孔量,利用高频调制TIG电弧激发超声电弧作用于MGH956合金的焊接,通过对比不同激励频率对焊缝气孔及性能的影响,分析了电弧超声激励频率对焊缝气孔及性能的作用机制及影响规律.运用理论计算的方法对焊缝中气孔的运动进行数学分析,理论计算结果与试验结果相一致.控制激励电流在15 A的条件下,激励频率为30 kHz时,焊缝的气孔量最少,且焊接接头强度达到最高,为521 MPa,达到母材的72%.实现了焊接接头断裂方式由脆性断裂转化为韧-脆混合断裂方式. | 罗雅 雷玉成 黄巍 梁申勇 | 2014 | 材料科学与工艺2014，22，5： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员