Abstract
Features of the structure of R6M5 steel based coatings obtained by multiscan electron-beam fusion of a hardening composition in vacuum have been studied. It is established that the carbide subsystem of the hardened layer is characterized by a multimodal distribution of carbide particles with d1 = 3.8 μm, d2 = 0.65 μm, and d3 < 0.25 μm. The volume fraction of M6C secondary carbide and retained matrix austenite can be controlled within broad limits by varying thermal parameters of the electron-beam fusion. An increase in the retained austenite fraction in the coating leads to improved wear resistance due to the γ → α′ marten-site transformation during friction and the presence of dispersed secondary carbides inside the matrix grains.
| Original language | English |
|---|---|
| Pages (from-to) | 745-748 |
| Number of pages | 4 |
| Journal | Technical Physics Letters |
| Volume | 36 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2010 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
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Structure and wear resistance of R6M5 steel based coatings. / Gnyusov, S. F.; Ignatov, A. A.; Durakov, V. G.
In: Technical Physics Letters, Vol. 36, No. 8, 2010, p. 745-748.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Structure and wear resistance of R6M5 steel based coatings
AU - Gnyusov, S. F.
AU - Ignatov, A. A.
AU - Durakov, V. G.
PY - 2010
Y1 - 2010
N2 - Features of the structure of R6M5 steel based coatings obtained by multiscan electron-beam fusion of a hardening composition in vacuum have been studied. It is established that the carbide subsystem of the hardened layer is characterized by a multimodal distribution of carbide particles with d1 = 3.8 μm, d2 = 0.65 μm, and d3 < 0.25 μm. The volume fraction of M6C secondary carbide and retained matrix austenite can be controlled within broad limits by varying thermal parameters of the electron-beam fusion. An increase in the retained austenite fraction in the coating leads to improved wear resistance due to the γ → α′ marten-site transformation during friction and the presence of dispersed secondary carbides inside the matrix grains.
AB - Features of the structure of R6M5 steel based coatings obtained by multiscan electron-beam fusion of a hardening composition in vacuum have been studied. It is established that the carbide subsystem of the hardened layer is characterized by a multimodal distribution of carbide particles with d1 = 3.8 μm, d2 = 0.65 μm, and d3 < 0.25 μm. The volume fraction of M6C secondary carbide and retained matrix austenite can be controlled within broad limits by varying thermal parameters of the electron-beam fusion. An increase in the retained austenite fraction in the coating leads to improved wear resistance due to the γ → α′ marten-site transformation during friction and the presence of dispersed secondary carbides inside the matrix grains.
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U2 - 10.1134/S1063785010080201
DO - 10.1134/S1063785010080201
M3 - Article
VL - 36
SP - 745
EP - 748
JO - Technical Physics Letters
JF - Technical Physics Letters
SN - 1063-7850
IS - 8
ER -