In-situ observation of solidification process of weld by using synchrotron radiation towards construction of simulation model of weld solidification

同步辐射原位观测焊缝凝固过程构建焊缝凝固模拟模型

• 批准号: 22760559
• 负责人: TERASAKI Hidenori
• 金额: $ 1.91万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22760559/
• 关键词: 接合・溶接; 溶接凝固; 溶接金属; ストレイ結晶; その場観察

The solidification process in stainless steel welds was analyzed using a time-resolved X-ray diffraction technique. By using an undulator beam and a novel X-ray detector, not only the phase evolution during the solidification process but also the liquid reduction during the solidification process were analyzed in the reciprocal lattice space. Furthermore, to estimate the temperature that stimulates stray grain formation, the temperature profile at the centerline of a weld bead was measured by using a radiation thermometer with immersion-type optical fiber. It was shown that the acquired physical quantity concerning to solidification weld was useful toward construction of the phase-field model of weld solidification.

采用时间分辨X射线衍射技术分析了不锈钢焊缝的凝固过程。利用波荡器光束和新型X射线探测器，在倒易晶格空间中分析了凝固过程中的相演化和液相还原。此外，估计温度，刺激杂散晶粒的形成，在焊缝中心线的温度分布进行了测量，通过使用辐射温度计与浸入式光纤。结果表明，所获得的与凝固焊缝有关的物理量对建立焊缝凝固的相场模型是有用的。

项目成果

Time-resolved X-ray diffraction studies of phase evolution including liquid phase and grain structure during solidification process in stainless steel welds

不锈钢焊缝凝固过程中相演化（包括液相和晶粒结构）的时间分辨 X 射线衍射研究

• 发表时间: 2012
• 期刊: Materials Letters
• 影响因子: 3
• 作者: H. Terasaki and Y. Komizo

In-situ observation method to assess the results of phase field simulation of weld

现场观察法评估焊缝相场模拟结果

• 发表时间: 2010
• 作者: 寺崎秀紀;小溝裕一;寺崎秀紀
• 通讯作者: 寺崎秀紀

時分割X線回折測定によるステンレス鋼溶接金属の凝固形態の解析

时间分辨X射线衍射测量不锈钢焊缝金属凝固形貌分析

• 发表时间: 2012
• 作者: 寺崎秀紀;小溝裕一
• 通讯作者: 小溝裕一

紀要. H. Terasaki, K. Moriguchi, Y. Komizo, On the application of multi-phase field modeling to the micro-stractural change in welding process, Transactions of JWRI,(2010), 43-46.

H. Terasaki、K. Moriguchi、Y. Komizo，关于多相场建模在焊接过程中微观结构变化中的应用，JWRI Transactions，（2010），43-46。

Time-resolved X-ray difeaction studies of phase evolution including liquid phase and grain structure during solidification process in stainless steel welds

不锈钢焊缝凝固过程中相演化（包括液相和晶粒结构）的时间分辨 X 射线衍射研究

• DOI: 10.1016/j.matlet.2012.01.104
• 发表时间: 2012
• 期刊: Materials Letters
• 影响因子: 3
• 作者: Hidenori Terasaki;Yu-ichi Komizo
• 通讯作者: Yu-ichi Komizo