Fall K 21

Rose, Gerd

doi:10.1007/978-3-322-83599-4_21

Cited by 1 publication

(2 citation statements)

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“…Extreme warpage was reported in small gears manufactured from AISI 80B20 steel, owing to high hardenability. This can be prevented by reducing the carbon content, or remedied by lowering the quenching temperatures in molten salts with subsequent stress relieving . Boron has been reported to increase the sensitivity of steel to overheating .…”

Section: Manufacturing Of Boron‐alloyed Steelsmentioning

confidence: 99%

“…Difficulties in obtaining sufficient case hardenability in boron‐carburizing steels compared with boron‐free‐carburizing steels have been reported, which is assumed to be due to deboronization, whereby boron has some hardenability improving effect on the inner region and almost no effect on the outer region of the carburized zone . Hence, deboronization is a concern only for the surface layer of the sample, rather than the bulk .…”

Section: Influence Of Boron On Hardenabilitymentioning

confidence: 99%

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Boron in Heat‐Treatable Steels: A Review

Sharma

Ortlepp

Bleck

2019

steel research int.

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The science and technology of boron addition to heat‐treatable steels are explained. The aim is to address the following: How to add boron to steel (i.e., the manufacturing aspects of boron addition to steel)? What precautions are necessary when alloying boron to steel, in terms of composition (mainly nitrogen, aluminum, and titanium contents), processing and heat treatment (i.e., material and process robustness and reproducibility for a consistent steel quality)? Where does boron go in steel (i.e., the state of boron, interstitial or substitutional solute, precipitate or a complex with other alloying elements; as well as the location of boron, i.e., dissolved as a solute in the grain or segregated at the grain boundary)? Which characterization methods are suitable for the detection of the very small amounts of boron (<30 wt ppm) in heat‐treatable steels? What does boron do in steel (i.e., its effect on hardenability and mechanical properties, specifically impact toughness)? How does it do and what it does (i.e., the physical mechanism by which it influences the properties)? How much boron is really required to achieve the desired properties in heat‐treatable steels (i.e., recommendations for the optimum boron content)?

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Section: Manufacturing Of Boron‐alloyed Steelsmentioning

confidence: 99%

Section: Influence Of Boron On Hardenabilitymentioning

confidence: 99%