کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7973650 | 1514628 | 2018 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of heat treatment on microstructure, mechanical and corrosion properties of austenitic stainless steel 316L using arc additive manufacturing
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The mechanical and corrosion properties of gas metal arc additive manufacturing (GMA-AM) 316L could be optimized by modifying the volume fractions of sigma (Ï) and delta-ferrite (δ) phases through heat treatment. Results show that the heat treatment at 1000 °C to 1200 °C for one hour will not obvious influence the morphology of grains in steel but largely influence the contents of Ï and δ phases. The heat treatment at 1000 °C effectively increases the amount of Ï phase in steel, causing both increase of UTS and YS but decrease of El and RA. The heat treatment at 1100 °C to 1200 °C completely eliminates Ï phase, leading to the decrease of UTS and YS but increase of El and RA. The Ï phase has better strengthening effect than δ phase, but which may degrade ductility and increase the possibility for cracks generation in steel. Meanwhile, limiting the number of both Ï and δ phases through heat treatment can improve the corrosion resistance of steel. And Ï phase appears more detrimental impact on degradation the corrosion resistance of steel than δ phase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 715, 7 February 2018, Pages 307-314
Journal: Materials Science and Engineering: A - Volume 715, 7 February 2018, Pages 307-314
نویسندگان
Xiaohui Chen, Jia Li, Xu Cheng, Huaming Wang, Zheng Huang,