کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1575339 | 1514745 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Strain-induced ε-martensite transformation during nanoindentation of high-nitrogen steel
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Strain-induced ε-martensite transformation during nanoindentation of high-nitrogen steel Strain-induced ε-martensite transformation during nanoindentation of high-nitrogen steel](/preview/png/1575339.png)
چکیده انگلیسی
The strain-induced austenite-to-ε-martensite transformation during nanoindentation of metastable austenite in a high-nitrogen stainless steel was investigated by observation of the microstructural changes underneath the indent. In the nanoindentation load-displacement curve, several small pop-ins were detected at the beginning stage of plastic deformation. The presence of ε-martensite bands underneath the indent and their orientation relationship with the parent austenite strongly suggest that the pop-ins in the load-displacement curve correspond to the transformation from austenite to ε-martensite. A quantitative analysis on the massive movement of Shockley partial dislocations during the transformation was performed to obtain the contraction strain under compressive stress conditions during nanoindentation. It was confirmed that the calculated contraction strain along the indenting direction matches well with the measured length of the pop-ins.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 598, 26 March 2014, Pages 56-61
Journal: Materials Science and Engineering: A - Volume 598, 26 March 2014, Pages 56-61
نویسندگان
Tae-Hong Ahn, Sung Bo Lee, Kyung-Tae Park, Kyu Hwan Oh, Heung Nam Han,