Characterization of Grain-boundary Precipitates after Hot-ductility Tests of Microalloyed Steels
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چکیده
منابع مشابه
Influence of Boron on Initial Austenite Grain Size and Hot Deformation Behavior of Boron Microalloyed Steels
The initial austenite grain size of boron microalloyed steel with three different amounts of boron (20, 40, and 60 ppm) was investigated under different heating temperatures (1150, 1100, and 1050 °C), and hot compression tests of samples in a wide range of temperature (900–1100 °C) and strain rate (0.1–10 s−1) were conducted. It was found that the initial austenite grain size increases with inc...
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Different techniques have been investigated to seek the best procedure to reveal the prior-austenite grain boundaries in three medium-carbon microalloyed steels. This study has been carried out over a wide range of temperatures (950–1250 C) and it has been found that thermal etching (TE) is the best technique to reveal the prior-austenite grain boundaries in these steels. D 2001 Elsevier Scienc...
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متن کاملthe washback effect of discretepoint vs. integrative tests on the retention of content in knowledge tests
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ژورنال
عنوان ژورنال: ISIJ International
سال: 2009
ISSN: 0915-1559,1347-5460
DOI: 10.2355/isijinternational.49.446