کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1630609 | 1516675 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nature of large (Ti, Nb)(C, N) particles precipitated during the solidification of Ti, Nb HSLA steel
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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: Nature of large (Ti, Nb)(C, N) particles precipitated during the solidification of Ti, Nb HSLA steel Nature of large (Ti, Nb)(C, N) particles precipitated during the solidification of Ti, Nb HSLA steel](/preview/png/1630609.png)
چکیده انگلیسی
To investigate the microsegregation phenomena and complex (Ti, Nb)(C, N) precipitation behavior during continuous casting, a unidirectional solidification unit was employed to simulate the solidification process. The samples of Ti, Nb-addition steels after unidirectional solidification were examined using field emission scanning electron microscope (FE-SEM) and electron probe X-ray microanalyzer (EPMA). In such specimens, dendrite structure and mushy zone can be detected along the solidification direction. It shows that the addition of titanium, niobium to high-strength low-alloyed (HSLA) steel results in undesirable (Ti, Nb)(C, N) precipitation because of microsegregation. The effect of cooling rate on (Ti, Nb)(C, N) precipitation was investigated. The composition of large precipitates was determined using FE-SEM with EDS. Large (Ti, Nb)(C, N) precipitates could be divided into three kinds according to the composition and morphology. With the cooling rate increasing, Ti-rich (Ti, Nb)(C, N) precipitates are transformed to Nb-rich (Ti, Nb)(C, N) precipitates.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material - Volume 14, Issue 2, April 2007, Pages 112-117
Journal: Journal of University of Science and Technology Beijing, Mineral, Metallurgy, Material - Volume 14, Issue 2, April 2007, Pages 112-117
نویسندگان
Xiaojun Zhuo, Xinhua Wang, Wanjun Wang, Hae-Geon Lee,