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microalloyed steels

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Published: 01 January 1990
Fig. 11 Yield strength of a microalloyed steel as a function of finishing temperature. Grain size: 5 μm (200 μin.). Source: Ref 16 More
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Published: 01 January 1990
Fig. 12 Controlled-rolling process for microalloyed steel bar. Source: Ref 17 More
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Published: 01 January 1990
Fig. 14 Grain structure of a microalloyed steel bar product of composition Fe-0.38C-1.18Mn-0.16V-0.018N. Source: Ref 21 More
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Published: 01 January 2005
Fig. 72 Flow behavior for a niobium-vanadium microalloyed steel deformed in 17 passes in a torsion machine. The specimen temperatures are represented by the upper bold line. Source: Ref 131 More
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Published: 01 January 2005
Fig. 74 Ferrite structure obtained in a niobium-vanadium microalloyed steel. (a) After 17 passes in the torsion machine. (b) After 17 passes in a production plate mill. Source: Ref 131 More
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Published: 01 January 2005
Fig. 12 φ 2 =45° sections of a niobium-vanadium microalloyed steel that was quenched after controlled rolling from soaking temperatures of (a) 1250 °C (2280 °F) and (b) 1050 °C (1920 °F) More
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Published: 01 January 1993
Fig. 6 CCT diagram for a titanium-boron microalloyed steel. T p , peak temperature. Source: Ref 9 More
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Published: 01 December 2004
Fig. 4 Microstructure of an as-rolled microalloyed steel plate showing equiaxed ferrite grains with bands. Note the fine ferrite grain size when compared with Fig. 2 . 4% picral + 2% nital etch. Original magnification 200× More
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Published: 01 December 2004
Fig. 54 Microstructure of as-rolled microalloyed steel showing ferrite grains and pearlite banding. Note that both the ferrite grains and pearlite bands are revealed. 4% picral + 2% nital. Original magnification 200× More
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001022
EISBN: 978-1-62708-161-0
... Abstract Two high-strength low-alloy (HSLA) families, acicular-ferrite steels and pearlite-reduced steels, contain microalloying additions of vanadium and niobium. Vanadium, niobium, and titanium combine preferentially with carbon and/or nitrogen to form a fine dispersion of precipitated...
Series: ASM Handbook
Volume: 4D
Publisher: ASM International
Published: 01 October 2014
DOI: 10.31399/asm.hb.v04d.a0005994
EISBN: 978-1-62708-168-9
... in these processes and their ability to produce high-quality components at low production cost from microalloyed steels. Further, the article describes the influence of carbon contents on toughness of microalloyed direct heat treated steels. It focuses on the DFQ and DHT steel technologies applied in continuous...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001032
EISBN: 978-1-62708-161-0
... and specialized tests. The article compares the processing of microalloyed plate and bar products. The article focuses on the use of torsion testing to evaluate the forgeability of carbon and alloy steels and presents information on measuring flow stress. The article discusses the metallurgy and thermomechanical...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001025
EISBN: 978-1-62708-161-0
... as microalloyed steels). The article places emphasis on HSLA steels, which are an attractive alternative in structural applications because of their competitive price per-yield strength ratios. HSLA steels are primarily hot-rolled into the usual wrought product forms and are furnished in the as-hot-rolled...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005884
EISBN: 978-1-62708-167-2
..., and copper alloys. aluminum alloys carbon steel copper alloys hot forging microalloyed steel stainless steel superalloys titanium alloys warm forming The warm and hot working of metals provides the ability to shape these important materials into component shapes that are useful...
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Published: 09 June 2014
Fig. 1 Typical time-temperature plots for (a) a low-alloy steel that is quenched and tempered compared to (b) a microalloyed steel More
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Published: 01 January 1990
Fig. 10 Comparison of impact transition properties for third-generation microalloy steel to standard quenched and tempered carbon (1040) and alloy (4140) steel grades. All materials tested at 40 HRC hardness. More
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Published: 01 January 1990
Fig. 1 Effect of vanadium on the tensile properties and FATT to a first-generation medium-carbon microalloy steel More
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Published: 01 October 2014
Fig. 1 Comparison of thermal processing cycles for traditional quench-and-temper direct heat treatment of microalloyed steels More
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Published: 01 January 2005
Fig. 2 Processing cycles for conventional (quenched and tempered; top) and microalloyed steels (bottom). Source: Ref 7 More
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Published: 01 October 2014
Fig. 22 Continuous cooling transformation diagram of 1200 MPa (174 ksi) class bainitic DHT microalloyed steel. Source: Ref 29 More