کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9709087 | 1466795 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The influence of niobium and aging treatment in the 18% Ni maraging steel
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The influence of niobium and aging treatment in the 18% Ni maraging steel The influence of niobium and aging treatment in the 18% Ni maraging steel](/preview/png/9709087.png)
چکیده انگلیسی
Effects of Nb (niobium) contents and aging conditions on the strength and fatigue life of 18% Ni maraging steel commonly using in aircraft, space field, nuclear energy, and vehicle, etc. were investigated. Hardness value decreased about 3% for annealed specimens and increased about 60% for 1 h aged specimens. But the values of the other specimens aged 2 h or more showed almost the same. The yield strength was the highest about 1800 MPa in 0.06% Nb specimen having twice as much as the base metal specimen. Also, the elongation was the highest in 0.03% Nb specimen showing the same as base metal specimen. The higher aging temperature and the longer aging time, the fatigue life increased. On the other hand, the 0.03% Nb specimen showed the highest fatigue life which increased about 12% more than base metal specimen. 0.06% Nb specimen aged at 482 °C for 8 h simultaneously satisfied the 250 grade strength and 200 grade elongation having the most superior mechanical properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volumes 162â163, 15 May 2005, Pages 342-349
Journal: Journal of Materials Processing Technology - Volumes 162â163, 15 May 2005, Pages 342-349
نویسندگان
D.G. Lee, K.C. Jang, J.M. Kuk, I.S. Kim,