کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9796260 | 1514943 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of austenite reversion during overageing on the mechanical properties of 18 Ni (350) maraging steel
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of austenite reversion during overageing on the mechanical properties of 18 Ni (350) maraging steel Effects of austenite reversion during overageing on the mechanical properties of 18 Ni (350) maraging steel](/preview/png/9796260.png)
چکیده انگلیسی
The sequence of austenite reversion during overageing in 18 Ni (350) maraging steel was examined and its effects on the mechanical properties were evaluated. Austenite with different morphological features were identified at different stages of overageing. The reverted austenite caused decrease in the yield strength (YS) and ultimate tensile strength (UTS) and increase in the tensile ductility. Though the presence of austenite appeared to be beneficial to impact toughness in the initial stages of overageing, severe embrittlement was noticed in samples subjected to prolonged ageing. The observed deterioration in toughness with continued overageing was associated with the coarsening of intermetallic precipitates formed during the early stages of ageing. Electron probe micro analysis (EPMA) carried out on fracture surface identified the embrittling species as precipitates rich in titanium and nickel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 398, Issues 1â2, 25 May 2005, Pages 367-372
Journal: Materials Science and Engineering: A - Volume 398, Issues 1â2, 25 May 2005, Pages 367-372
نویسندگان
U.K. Viswanathan, G.K. Dey, V. Sethumadhavan,