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were studied by electron back scattering diffraction pattern(EBSD) analysis. A fine-grained structure with (sub)grain size of about 2 ?m is obtained after 6 ECAP passes, and the fraction of high-angle... stresses and the grain growth, while the elongation increases slightly. Key words: Al-Mg-Mn alloy; equal channel angular pressing; annealing; EBSD ......
EBSD测定钛合金中氢化物的取向关系 刘庆1,余煌1,顾家琳1 (1.清华大学材料科学与工程系材料研究中心先进材料教育部重点实验室,北京,100084) 摘要:提出了一种新的基于扫描电镜背散射电子衍射花样的测定析出相取向关系的分析方法,这种方法的精度约为2.5°.实验中还使用该方法对钛合金中氢化物与基体的取向关系进行了分析,其结果与用选区衍射分析得到的结果一致. 关键词:背散射电子衍射花样; 取向关系; 钛合金; 氢化物; [全文内容正在添加中] ......
Trans. Nonferrous Met. Soc. China 31(2021) 2250-2263 EBSD characterization of Al7075/graphene nanoplates/carbon nanotubes composites processed through post-deformation annealing Siavash IMANIAN... at 450 °C for 4 h. Microstructural evolution was examined by SEM, EDS, and EBSD techniques. EBSD data showed that the addition of 0.87 vol.% (GNPs + CNTs) significantly inhibited the occurrence......
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基于EBSD技术的P91钢蠕变过程中小角度晶界演化行为表征郭苗苗,刘新宝,朱麟,张琦,刘剑秋西北大学化工学院摘 要:在620℃,145 MPa条件下对给定的P91钢进行高温蠕变持久与间断试验,采用电子背散射衍射(EBSD)技术研究其在蠕变过程中小角度晶界的演化行为.通过引入EBSD图像中的取向差分布来表征小角度晶界处(0.5~5°)的边界位错密度,分析了边界位错密度在蠕变过程中与小角度边界的数量,塑性应变以及内部微观组织演化之间的关系.此外,通过改变EBSD像素点与像素点之间的计算步长,探讨了步长选择对边界位错密度计算结果的影响.结果表明,小角度晶界处的位错密度在蠕变过程中先迅速上升,在最小蠕变率处达到极值后缓慢下降,直到最后基本保持不变;同时,EBSD的计算步长越小,得到的位错密度值越准确......
A Method to Distinguish Twinning Variants and Second Twins by EBSD MeasurementsXinli Wang1,Wenbin Dai2,Rui Wang3,Xinzhong Tian3,Xiang Zhao21. Research Institute,Northeastern University2. School... twins from twinning variants by electron back scattered diffraction(EBSD).To clarify the orientation relationship between the neighboring crystals,the misorientation calculation by MATLAB software......
Experimental Determination of Deformation Induced Lattice Rotation by EBSD Technique for Slip System AnalysisXuehao Zheng1,Hongwang Zhang1,21. Shenyang National Laboratory for Materials Science...:A method was proposed to experimentally determine the deformation induced lattice rotation by electron backscatter diffraction(EBSD) technique,based on which......
基于EBSD技术的超低碳IF钢中铁素体晶粒尺寸表征崔桂彬,鞠新华,尹立新,孟杨,温娟首钢集团有限公司技术研究院摘 要:借助电子背散射衍射(EBSD)技术对超低碳IF钢铁素体晶粒尺寸的表征方法进行了研究与探讨.结果显示,对于具有较强织构的IF钢来讲,铁素体晶粒显示以5°为晶内最大取向差进行晶粒尺寸的测量与统计更为准确,与金相法显示的晶界轮廓基本吻合.利用该表征方法测量晶粒尺寸,不仅可以给出晶粒尺寸的平均值,最大值和最小值,还可以给出晶粒尺寸分布图.关键词:超低碳;IF钢;铁素体;晶粒尺寸;电子背散射衍射;......
Characterization by EBSD of Antimony-calcium Rich Phases Formed during Purification of Aluminum ScrapOROZCO Pilar44. Faculty of Engineering, Autonomous University of Zacatecas摘 要:EBSD) were used to characterize the materials. The experimental results provided the basis for us to establish that antimony removal from Al occurs mainly through the reaction (Sb)Al + 2Ca......
IF钢再结晶晶粒尺寸,显微织构和晶界特征分布的EBSD研究 陈家光1,曹圣泉2,吴建生2,张津徐2 (1.上海宝钢股份有限公司宝钢研究院测试中心,上海,201900;2.上海交通大学材料科学与工程学院,高温材料及高温测试教育部重点实验室,上海,200030) 摘要:对IF钢板的罩式退火工艺和连续退火工艺进行了模拟,并运用电子背散射衍射(EBSD)技术研究了两种退火工艺处理的IF钢板的再结晶晶粒尺寸,显微织构和晶界特征分布及其与二次加工脆性间的关系.试验结果表明,两种退火工艺的IF钢板在再结晶晶粒尺寸,显微织构和晶界特征分布上存在很大的差异,这种差异导致了两种退火工艺的实验钢板在深冲性能和韧脆转变温度上的差异. 关键词:IF钢; 显微织构; 晶界特征分布; 电子背散射衍射; [全文内容正在添加中] ......
