2015
DOI: 10.1007/s11015-015-0036-2
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Fatigue Strength of Microalloyed Hot-Deformed Powder Steels

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Cited by 5 publications
(3 citation statements)
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“…At the same time, it has been established that the achieved density is not the only criterion that determines the formation of the structure and properties of the metal. Depending on the stress-strain state during deformation, for the same final density of the powder metal the microstructure, plastic properties and, especially, impact strength also change significantly [17][18][19][20].…”
Section: Introductionmentioning
confidence: 99%
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“…At the same time, it has been established that the achieved density is not the only criterion that determines the formation of the structure and properties of the metal. Depending on the stress-strain state during deformation, for the same final density of the powder metal the microstructure, plastic properties and, especially, impact strength also change significantly [17][18][19][20].…”
Section: Introductionmentioning
confidence: 99%
“…In [21] as a result of the analysis of fractograms of hot-forged samples after deformation it was shown that during hot forging with a scheme of all-round uniform compression, accumulations of oxide films are formed at the grain boundaries, which prevent the formation of a durable metal contact. Meanwhile, the use of forging schemes with the developed degree of shear deformations allows to obtain materials with a more dispersed structure, increased strength and ductility due to, in particular, a significant increase in the number of rupture zones of oxide films in contact zones between particles [19,20].…”
Section: Introductionmentioning
confidence: 99%
“…В настоящее время порошковые железографитовые материалы используются для изготовления широкой номенклатуры конструкционных деталей для различных отраслей машиностроения [1]. Необходимое при этом сочетание требуемых свойств может успешно контролироваться процессами структурообразования, например за счет использования различных типов углеродных порошков [2], а также более эффективных методов консолидации, таких как горячее прессование и искровое плазменное спекание, которые обеспечивают высокие значения плотности, дисперсности структуры и уровня физико-механических свойств [3]. Типичные значения прочностных свойств низко-и среднелегированных порошковых сталей составляют 600-900 МПа, микротвердость 800-1500 МПа, относительный износ 10 -10 [4].…”
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