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Showing papers by "Semyon Vaynman published in 2016"

Journal Article•DOI•
Effects of increased alloying element content on NiAl-type precipitate formation, loading rate sensitivity, and ductility of Cu- and NiAl-precipitation-strengthened ferritic steels

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Monica Kapoor1, Dieter Isheim1, Semyon Vaynman1, Morris E. Fine1, Yip-Wah Chung1 •
Northwestern University1
01 Feb 2016-Acta Materialia
TL;DR: In this article, the volume fraction and number density of NiAl-type precipitates in the heavier alloyed steel (designated as CF-9 ) is ∼60-70 times greater than those in the lighter alloyed steels (designed as CF -2).

53 citations

Patent•
High temperature steel for steam turbine and other applications

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Cameron T. Gross1, Yao Du1, Xu Zhang1, Dieter Isheim1, Semyon Vaynman1, Yip-Wah Chung1, Zilin Jiang1, Allan V. Mathai1 •
Northwestern University1
18 Oct 2016
TL;DR: A steel composition may include iron, from 0.015 to 0.06 wt. % carbon, from 9 to 12 wt % chromium; from 0,75 to 1.5 wt., molybdenum, vanadium, and optionally an amount of an additional precipitate forming alloying element.
Abstract: Steel compositions are provided. A steel composition may include iron; from 0.015 to 0.06 wt. % carbon; from 9 to 12 wt. % chromium; from 0.75 to 1.5 wt. % manganese; from 0.08 to 0.18 wt. % molybdenum; from 0.10 to 0.30 wt. % silicon; from 0.2 to 1.0 wt. % vanadium; from 0.05 to 1.2 wt. % niobium; and optionally, an amount of an additional precipitate forming alloying element. Methods of making the steel compositions are also provided.

2 citations