FIELD: metallurgy.
SUBSTANCE: invention relates to wear-resistant iron-based alloys for hardening the surface of steel products that can be used for drilling in oil and gas production, mining, cement production, etc. Wear-resistant alloy based on iron for surface hardening of a steel substrate includes, wt.%: boron 1.6-2.4, carbon 1.7-3.0, molybdenum 16.0-19.5, nickel 3.5-6, 5, manganese less than 0.8, silicon 0.2-3.0, vanadium 10.8-13.2, the rest is iron. The invention also relates to an article including a substrate portion and a surface hardening coating associated with the substrate portion, the surface hardening coating being formed by a hardfacing process using a wear resistant iron-based alloy.
EFFECT: invention is aimed at reducing the tendency of coatings to form pores and cracks and increasing the resistance to abrasive and impact wear.
16 cl, 1 ex, 10 tbl, 8 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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| METHOD OF HARDENING NICKEL-CHROME-BORON-SILICON COATING ON METAL PARTS | 2018 |
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SU1731550A1 |
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RU2682738C2 |
| WEAR-RESISTANT ALLOY | 2015 |
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RU2702517C2 |
| COMPOSITION WELDING WIRE | 2012 |
|
RU2613006C2 |
