کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1605839 | 1516217 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Solidification of laser deposition shaping for TC4 alloy based on cellular automation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Solidification of laser deposition shaping for TC4 alloy based on cellular automation Solidification of laser deposition shaping for TC4 alloy based on cellular automation](/preview/png/1605839.png)
چکیده انگلیسی
Solidification process of molten pool during laser deposition shaping (LDS) were investigated to simulate the temperature transient and microstructural evolution for TC4 alloy with grain nucleation and growth model based on cellular automation method. The experiments conducted on the corresponding process parameters were compared with the simulation results and the microstructures were analyzed. The results showed that microstructure in the molten pool preferred to form coarse β columnar grains and acicular αⲠmartensite among the intracrystalline. The direction of grain growth was found to be opposite to the temperature transient, and the columnar grain trends to transform equiaxed microstructure. In the solidification process of molten pool, the preferred orientation of grain growth was ã110ã direction. Finally, it is verified that the simulation results agree well with the experimental results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 676, 15 August 2016, Pages 542-550
Journal: Journal of Alloys and Compounds - Volume 676, 15 August 2016, Pages 542-550
نویسندگان
Fengjie Tian, Zhenguo Li, Jianxin Song,