Sound power spectra modelling of the vehicle in motion equipped with rotary-screw propulsion unit

Molev, Yuri; Mokerov, Dmitriy; Іванов, Сергій Вікторович; Saushkina, M.; Palutin, Y.

doi:10.1088/1742-6596/1177/1/012034

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Fig 3 -The External Appearance Of Steel 45 After Laser Allo1

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2019

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“…Some part of the grains has a polyhedrous shape. [10] It's obvious that these crystals are formed as a result of phase recrystallization of θ-phase in α-phase. θ-phase evolves in the form of very small particles both along the gain borders and in grains themselves (Fig.…”

Section: Fig 3 -The External Appearance Of Steel 45 After Laser Allomentioning

confidence: 99%

The Research of Carbon Construction Steel at Laser Alloying

Smirnova¹,

Rudenko²,

Vaganova³

et al. 2019

IJITEE

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Relevance: The theme of machine components case-hardening when heated by a laser ray has been and remains currently relevant. Laser case-hardening is characterized by a number of exclusive advantages: hardening of hard-to-reach surfaces, ensuring local hardening, including “spot” one when a continuous layer of fragile material vulnerable to cracking and destruction doesn’t form; the lack of deformations and warping of processed parts as well as finishing operations; getting desired properties both mechanical and chemical ones by introducing different elements in the uppermost layer of a product at its melting by a laser ray, i.e. at implementing laser alloying.

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Section: Fig 3 -The External Appearance Of Steel 45 After Laser Allomentioning

confidence: 99%