| 000 | 03503nlm1a2200481 4500 | ||
|---|---|---|---|
| 001 | 655134 | ||
| 005 | 20231030041331.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\20952 | ||
| 035 | _aRU\TPU\network\10824 | ||
| 090 | _a655134 | ||
| 100 | _a20170704a2017 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aEffect of Hydrogen Exposure on Mechanical and Tribological Behavior of CrxN Coatings Deposited at Different Pressures on IN718 _fA. Obrosov [et al.] |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: 50 tit.] | ||
| 330 | _aIn the current study, the properties of the CrxN coatings deposited on the Inconel 718 superalloy using direct current reactive magnetron sputtering are investigated. The influence of working pressure on the microstructure, mechanical, and tribological properties of the CrxN coatings before and after high-temperature hydrogen exposure is studied. The cross-sectional scanning electron micrographs indicate the columnar structure of the coatings, which changes from dense and compact columns to large columns with increasing working pressure. The Cr/N ratio increases from 1.4 to 1.9 with increasing working pressure from 300 to 900 mPa, respectively. X-ray diffraction analysis reveals a change from mixed hcp-Cr2N and fcc-CrN structure to approximately stoichiometric Cr2N phase. After gas-phase hydrogenation, the coating deposited at 300 mPa exhibits the lowest hydrogen absorption at 600 °C of all investigated coatings. The results indicate that the dense mixed cubic and hexagonal structure is preferential for hydrogen permeation resistance due to the presence of cubic phase with higher packing density in comparison to the hexagonal structure. After hydrogenation, no changes in phase composition were observed; however, a small amount of hydrogen is accumulated in the coatings. An increase of coating hardness and elastic modulus was observed after hydrogen exposure. Tribological tests reveal that hydrogenation leads to a decrease of the friction coefficient up to 20%-30%. The best value of 0.25 was reached for hydrogen exposed CrxN coating deposited at 300 mPa. | ||
| 461 | _tMaterials | ||
| 463 |
_tVol. 10, iss. 5 _v[563, 11 p.] _d2017 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _aгидрирование | |
| 610 | 1 | _aтрибология | |
| 610 | 1 | _aмеханические свойства | |
| 610 | 1 | _aCrxN coatings | |
| 610 | 1 | _aPVD | |
| 610 | 1 | _ahydrogenation | |
| 610 | 1 | _atribology | |
| 610 | 1 | _aproperties | |
| 610 | 1 | _aGDOES | |
| 701 | 1 |
_aObrosov _bA. _gAleksey |
|
| 701 | 1 |
_aSutygina _bA. N. _cPhysicist _cTechnician of Tomsk Polytechnic University _f1993- _gAlina Nikolaevna _2stltpush _3(RuTPU)RU\TPU\pers\37677 |
|
| 701 | 1 |
_aVolinsky _bA. _gAlex |
|
| 701 | 1 |
_aManakhov _bA. _gAnton |
|
| 701 | 1 |
_aWeifs _bS. _gSabine |
|
| 701 | 1 |
_aKashkarov _bE. B. _cPhysicist _cEngineer of Tomsk Polytechnic University _f1991- _gEgor Borisovich _2stltpush _3(RuTPU)RU\TPU\pers\34949 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _bФизико-технический институт (ФТИ) _bКафедра общей физики (ОФ) _h136 _2stltpush _3(RuTPU)RU\TPU\col\18734 |
| 801 | 2 |
_aRU _b63413507 _c20170704 _gRCR |
|
| 856 | 4 | _uhttp://dx.doi.org/10.3390/ma10050563 | |
| 942 | _cCF | ||