A Study on Crystal Grain Projection Method by SR and Application to Al Alloy

SR晶粒投影法及其在铝合金中的应用研究

• 批准号: 09650799
• 负责人: KAWASAKI Koichi
• 金额: $ 1.86万
• 依托单位: Niihama National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09650799/
• 关键词: X-ray diffraction; synchrotron radiation; crystal grain projection method; Imaging Plate; pole figure; recrystallization; aluminum; aluminum alloy; SR

1. ExperimentsThe experimental proposal to KEK was approved until 1998.10. Measurements were made at the beamline BL-3A at the Photon Factory, KEK under crystal grain projection method setup. Hot-rolled aluminum alloy sheets with O-10% Mg were reheated and cold- rolled to 0.5 mm in thickness. Cold-rolled specimens were made by cutting and the high temperature measurement of grain growth process was carried out. After heating cold-rolled specimens in laboratory, room temperature measurement was made to reveal the effect of Mg on primary recrystallization.2. Data Analysis method(1) A personal computer (Gateway, G6-266), a data processing software (Rigaku, CONTROLWIN) and an image analysis software (Media Cybernetics, Image-Pro Plus) were equipped and BMP type image data transfer from the data processing software to the image analysis software has become feasible.(2) The number of grains was counted correctly and the size of grains were estimated semi quantitatively by using 15 mu m standard powder specimen.3. Analysis of the effect of addition of Mg and grain growth process(1) In the case of additioning of 6-7% Mg, ND-rotated cube was the main orientation. But at-9% Mg, projected patterns related cube orientation were observed.(2) At high temperature grain growth process of pure Al were observed. Isochronally some grains disappeared or had become very small, otherwise many grains hold their size. At high temperatures, change of X-ray integrated intensity, corresponding to crystal grain size, were observed dynamically.4. Successively, strain of grains and pole figures composed by grains with different grain size will be studied.

1.向科索沃能源公司提出的实验建议获得批准，直到1998年。在KEK光子工厂的BL-3A光束线上，根据晶粒投影法装置进行测量。将具有0 - 10%Mg的热轧铝合金板再加热并冷轧至0.5mm厚。采用切削法制备了冷轧试样，进行了晶粒长大过程的高温测量。在实验室对冷轧试样进行加热后，进行室温测量，研究Mg对一次再结晶的影响.数据分析方法（1）配备个人计算机（Gateway，G6-266）、数据处理软件（Rigaku，CONTROLWIN）和图像分析软件（Media Cybernetics，Image-Pro Plus），从数据处理软件到图像分析软件的BMP型图像数据传输已经变得可行。(2)采用15 μ m标准粉末粒度仪，准确计数了颗粒数，并半定量估计了颗粒大小. Mg的加入对晶粒长大过程的影响分析（1）Mg的加入量为6-7%时，以ND旋转立方晶为主。但在-9%Mg时，观察到与立方体取向相关的投影图案。(2)观察了纯铝在高温下的晶粒长大过程。等时的一些颗粒消失或变得非常小，否则许多颗粒保持其大小。在高温下，动态观察到X射线积分强度随晶粒尺寸的变化.研究了晶粒的连续性、应变以及不同晶粒尺寸的晶粒组成的极图。

项目成果

K.Kawasaki, M.Koizumi and H.Inagaki: "Rapid Projection of Crystal Grain Orientation Distribution in Aluminum Alloy Sheets by Synchrotron X-ray Diffraction" J.Synchrotron Radiation. 5. 1139-1140 (1998)

K.Kawasaki、M.Koizumi 和 H.Inagaki：“通过同步加速器 X 射线衍射快速投影铝合金板中的晶粒取向分布”J.Synchrotron Radiation。

K.Kawasaki, M.Koizumi and H.Inagaki: "Rapid Projection of Crystal Grain Orientation Distribution in Aluminum Alloy Sheets by Synchrotron X-ray Diffraction" Journal of Synchrotron Radiation. 5. 1139-1140 (1998)

K.Kawasaki、M.Koizumi 和 H.Inagaki：“通过同步辐射 X 射线衍射快速投影铝合金板中的晶粒取向分布”同步辐射杂志。

K.Kawasaki,M.Koizumi and H.Inagaki: "Rapid Projection of Crystal Grain Orientation Distribution in Aluminum Alloy Sheets by Synchrotron X-ray Diffraction" Journal of Synchrotron Radiation.

K.Kawasaki、M.Koizumi 和 H.Inagaki：“通过同步辐射 X 射线衍射快速投影铝合金板中的晶粒取向分布”同步辐射杂志。