CN102672368A - Novel wear-resisting nickel-base overlaying alloy powder - Google Patents
Novel wear-resisting nickel-base overlaying alloy powder Download PDFInfo
- Publication number
- CN102672368A CN102672368A CN2012101679896A CN201210167989A CN102672368A CN 102672368 A CN102672368 A CN 102672368A CN 2012101679896 A CN2012101679896 A CN 2012101679896A CN 201210167989 A CN201210167989 A CN 201210167989A CN 102672368 A CN102672368 A CN 102672368A
- Authority
- CN
- China
- Prior art keywords
- alloy powder
- resisting
- base
- cobalt
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention provides novel wear-resisting nickel-base overlaying alloy powder which contains the following components by weight percentage: 25%-28% of Cr, 4%-6.5% of Mo, 8%-20% of Fe, no larger than 2.5% of Si, not exceeding 2% of B, 0.65%-0.8% of C and the balance Ni. The novel wear-resisting nickel-base overlaying alloy powder has the advantages of being low in cost, good in comprehensive performance, high-temperature-resisting and wear-resisting, being near to No. 6 cobalt base but superior to No. 6 cobalt base due to large high temperature resisting performance, high shock resisting performance and impact resisting performance and being good in manufacturability, and smoothness and brightness of the surface of the welding layer performed with plasma arc surfacing are better than those of cobalt-base alloy.
Description
Technical field
What the present invention relates to is the coating metal alloyed powder of surfacecti proteon, is specially adapted to the nickel-base alloy powder that the built-up welding of automobile exhaust valve sealing surface is used.
Technical background
At present in the prior art; To automobile, locomotive exhausting valve sealing surface weld deposit commonly used be Stellitel6 Co-based alloy powder No. 6, cobalt-based (be called for short Ste6 number or); The automobile exhaust valve sealing surface requires high temperature resistant, anti-wear performance; And Co-based alloy powder belongs to high temperature resistant, high-abrasive material, internationally recognized Stellitel6 Co-based alloy powder has high temperature resistant, wear-resisting preferably combination property.But China costs an arm and a leg because cobalt raw material lacks, and has limited it and has used, and what a kind of inexpensive high-quality was extremely thirsted for occurring by industrial and mining enterprises has heat resistant and wear resistant and a high material substitution Co-based alloy powder of thermal shock resistance.
The content of invention
Based on the market demand, provide a kind of novel Co-based alloy powder to substitute Co-based alloy powder, have Stellitel6 Co-based alloy powder heat resistant and wear resistant and decrease performance, and have excellent thermal-shock resistance.Technical scheme of the present invention is:
The Ni-based hardfacing alloy powder of a kind of novel wear resistant; Said alloy powder comprises and is the Mo of the Cr of 25%-28%, 4%-6.5%, the Fe of 8%-20%, the highest 2.5% Si, the highest 2% B, the C of 0.65%-0.8% of being no more than of being no more than by weight percentage; Surplus is Ni, and wherein the weight ratio of Cr and Mo is 4.3; Wherein in this alloy powder, by weight, the C amount accounts for Cr and adds 0.022 of both total amounts of Mo; Preferably the Fe amount is 10%-15%.
Above-mentioned alloy powder preferably comprises and is the Mo of the Cr of 25%-27%, 5.5%-6.5%, the Fe of 10%-15%, the Si of 1.5%-2.5%, the B of 1.5%-2%, the C of 0.65%-0.75% by weight percentage, and surplus is Ni.
Above-mentioned employed Cr, Mo, C, Fe, Si, C, Ni are commercially available technical grade product.
Alloy powder of the present invention is to be matrix with nickel, and it is indispensable adding elements such as Cr, Mo, Fe.The adding of chromium, molybdenum mainly is to reach the solution strengthening effect, strengthens its oxidation-resistance property and heat resistance.Excessive chrome molybdenum can generate carbide with C again, and the disperse of hard phase is distributed in the matrix of solution strengthening, improves hardness, and the carbide dispersion solution strengthening effect that strengthens mar proof, particularly Mo is remarkable.Because molybdenum has the effect that suppresses the carbide polymerization, can reach the miniaturization homogenising and distribute, make alloy structure stable, the proportionality action of high temperature hardness, so the addition of Cr, Mo, C is very big to the alloy performance impact.Cr established in test by nickel-base alloy of the present invention and Mo optimal proportion, Cr+Mo and C optimal proportion are to guarantee nickel-base alloy heat resistant and wear resistant of the present invention damage property optimum efficiency, has brought into play the beneficial effect of optimal addn between Cr, Mo, the C.
The adding of Fe it is generally acknowledged and be prone to make alloy embrittlement, reduces high temperature hardness, reduces corrosion resistance, and is normally confined in nickel cobalt (alloy), generally all limits to be no more than 5% for well.The present invention is based on the valve work characteristics and improve the heat shock resistance fatigue behaviour of valve; Courageously quoted the adding of Fe; Test in the 5%--20% scope; Find that Fe adds that 10%--15% is to the elevated temperature heat epistasis by weight percentage, the high temperature hardness value is influence not, and counterweight re-heat impact has excellent resistance.The Fe addition is less than 10% DeGrain, and the Fe addition obviously reduces high temperature hardness greater than 15%.The present invention confirms that the Fe addition is that 10%--15% is one of distinguishing feature of the present invention, is the maximum bright spot of technological break-through.
Nickel-base alloy of the present invention is inquired into the effect of W and Mo in test in addition.W and Mo are the strong element of heat, and W is lower than Mo price, but the carbide of W is thick, and skewness be prone to cause coating hardness uneven, and the carbide of Mo is fine and disperse distributes, and the coating hardness value very evenly.Therefore the present invention uses Mo, and to confirm to quote Mo content be optimised quantity for 5.5%--6.5% by weight percentage, and this is another bright spot of technological break-through of the present invention.
The adding of B, Si element be improve alloy of the present invention from dissolubility and wetability, guarantee defectives such as the fine and close pore-free slag inclusion of Co-based alloy powder layer of the present invention.Composition control through Cr, Mo, Fe, B, Si, C makes Co-based alloy powder of the present invention have suitable layer hardness number and high-temperature working performance, greatly reduces cost simultaneously.
The present invention adopts high pure nitrogen aerosolization method to be prepared from, and obtained alloy powder shows as silver gray, is spheric granules more than 90%, and powder flowbility (S/50g) is 13.5 seconds, and apparent density is 4.7g/cm
3
The present invention also can be used for preparing welding wire, welding rod usefulness except being used for motor locomotive exhausting valve sealing surface weld deposit usefulness.
Therefore, the invention has the beneficial effects as follows in sum:
(1) cost is low.Co-based alloy powder price of the present invention is equivalent to the price 1/3 of Co-based alloy powder.
(2) comprehensive technical performance is good: high temperature resistant, mar proof, approach cobalt-based No. 6, and high temperature resistance anti-knock shock resistance property big, be superior to cobalt-based No. 6.Co-based alloy powder of the present invention is compared for No. 6 with cobalt-based, adopts the layer VOLUME LOSS (mm in wear test after the same plasma arc surfacing processes
3) identical, do repeatedly that cobalt-based micro-crack occurs No. 6 in the hot Alternating Test, and that Co-based alloy powder of the present invention is not found heat fatigue cracking (in equal time) and normal temperature hardness high temperature hardness value is all approaching basically.
(3) good manufacturability: surperficial planarization, the light property of layer all was better than cobalt-base alloys after No. 6 alloys of nickel-base alloy of the present invention and cobalt-based adopted plasma arc surfacing.
The specific embodiment
Embodiment 1
The Ni-based hardfacing alloy powder of a kind of novel wear resistant, this alloy powder by weight percentage, it is Ni that following component: Cr 24%, Mo5.5%, Fe10%, Si 1.5%B 1% C0.65%, surplus are arranged; Adopt high pure nitrogen aerosolization method to be prepared from, obtained alloy powder shows as silver gray, is spheric granules more than 90%, and powder flowbility (S/50g) is 13.5 seconds, and apparent density is 4.7g/cm
3In the use, its normal temperature hardness number is 41.5HRC.
Embodiment 2
The Ni-based hardfacing alloy powder of a kind of novel wear resistant, this alloy powder by weight percentage, it is Ni that following component: Cr 26.5%, Mo 6.0%, Fe 13.0%, Si 2.0%, B 1.5%, C 0.7%, surplus are arranged; The present invention adopts high pure nitrogen aerosolization method to be prepared from, and obtained alloy powder shows as silver gray, is spheric granules more than 90%, and powder flowbility (S/50g) is 13.5 seconds, and apparent density is 4.7g/cm
3In the use, its normal temperature hardness number is 42.5HRC.
Embodiment 3
The Ni-based hardfacing alloy powder of a kind of novel wear resistant, this alloy powder by weight percentage, it is Ni that following component: Cr 28.0% Mo 6.5% Fe 15.0% Si 2.5%, B 2%, C 0.76%, surplus are arranged; The present invention adopts high pure nitrogen aerosolization method to be prepared from, and obtained alloy powder shows as silver gray, is spheric granules more than 90%, and powder flowbility (S/50g) is 13.5 seconds, and apparent density is 4.7g/cm
3In the use, its normal temperature hardness number 44HRC.
With cobalt-based Stellitel6 performance comparison
Following performance test contrast is done in the embodiment of the invention and cobalt-based Stellitel6 number No. 6, cobalt-based (be called for short Ste6 number or); Can see that comprehensive technical performance of the present invention is good: high temperature resistant, mar proof; Approach cobalt-based Stellitel6 number; And high temperature resistance anti-knock shock resistance property is superior to cobalt-based greatly No. 6; Simultaneously micro-crack appears in the Ste6 alloy powder in doing repeatedly hot Alternating Test, and Co-based alloy powder of the present invention does not find that heat fatigue cracking (in equal time) and normal temperature hardness high temperature hardness value are all approaching basically; Surperficial planarization, the light property of layer all was better than cobalt-base alloys after No. 6 alloys of nickel-base alloy of the present invention and cobalt-based adopted plasma arc surfacing.Below be respectively the contrast of high temperature hardness value, the contrast of normal temperature hardness number, rate of corrosion comparison, wear-resistant comparison sheet.
1, high temperature hardness value contrast (HRC), sample all adopts plasma arc welding (PAW)
| 400 ° of C of temperature | 500 ° of C of temperature | 650 ° of C of temperature | |
| Ste6 number (hardness HRC) | 35 | 30 | 29 |
| Embodiment 1 (hardness HRC) | 35 | 29 | 28 |
| Embodiment 2 (hardness HRC) | 34 | 30 | 28 |
| Embodiment 3 (hardness HRC) | 36 | 31 | 30 |
2, normal temperature hardness number contrast (HRC), sample all adopts plasma arc welding (PAW)
| Contrast | Normal temperature hardness number (HRC) |
| Ste6 number | 39--42 |
| Embodiment 1 | 38-41 |
| Embodiment 2 | 40-42 |
| Embodiment 3 | 43-44 |
3, rate of corrosion compares (close/year)
| 10% acetic acid (HB) | 5％H2So4 | 60％HNO3 | |
| Ste6 number | <1 | <1 | <1 |
| Embodiment 1 | <1 | <0.8 | <1.2 |
| Embodiment 2 | <1 | <1 | <1.1 |
| Embodiment 3 | <0.8 | <0.8 | <1 |
4, wear-resistant comparison (VOLUME LOSS)
---be on 60 rev/mins the intermetallic adhesive wear testing machine at revolution, after rotation 2000 is changeed, measured data:
| Contrast | Ste6 number | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Volume wearing and tearing (mm 3） | ?35 | ?28 | ?28 | ?28 |
Claims (4)
1. Ni-based hardfacing alloy powder of novel wear resistant; It is characterized in that said alloy powder comprises is the Mo of the Cr of 25%-28%, 4%-6.5%, the Fe of 8%-20%, the highest 2.5% Si, the highest 2% B, the C of 0.65%-0.8% of being no more than of being no more than by weight percentage; Surplus is Ni, and wherein the weight ratio of Cr and Mo is 4.3.
2. alloy powder according to claim 1, wherein by weight, the C amount accounts for Cr and adds 0.022 of both total amounts of Mo.
3. like claim 1 or 2 each said alloy powders, wherein comprise the Fe amount by weight percentage and be 10%-15%.
4. like claim 1 or 2 each said alloy powders; Wherein preferably comprise and be the Mo of the Cr of 25%-27%, 5.5%-6.5%, the Fe of 10%-15%, the Si of 1.5%-2.5%, the B of 1.5%-2%, the C of 0.65%-0.75% by weight percentage, surplus is Ni.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101679896A CN102672368A (en) | 2012-05-25 | 2012-05-25 | Novel wear-resisting nickel-base overlaying alloy powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101679896A CN102672368A (en) | 2012-05-25 | 2012-05-25 | Novel wear-resisting nickel-base overlaying alloy powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102672368A true CN102672368A (en) | 2012-09-19 |
Family
ID=46805277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101679896A Pending CN102672368A (en) | 2012-05-25 | 2012-05-25 | Novel wear-resisting nickel-base overlaying alloy powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102672368A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851544A (en) * | 2012-10-09 | 2013-01-02 | 天津市铸金表面工程材料科技开发有限公司 | Corrosion-resistant nickel-base alloy overlay welding powder |
| CN103737196A (en) * | 2012-10-17 | 2014-04-23 | 沈阳工业大学 | Hardfacing alloy containing silicon and chromium composite ceramic phases and manufacturing process thereof |
| CN103785976A (en) * | 2013-12-13 | 2014-05-14 | 天津大学 | Hot roll surfacing submerged arc flux-cored welding wire and preparation method for same |
| CN104227214A (en) * | 2014-08-20 | 2014-12-24 | 镇江市华阳机电制造有限公司 | High-sealing gas-protecting welding process used for corrugated pipe stop valve for nuclear power |
| CN104511702A (en) * | 2013-09-30 | 2015-04-15 | 利宝地工程有限公司 | Welding material for welding of superalloys |
| CN104842088A (en) * | 2015-06-03 | 2015-08-19 | 浙江科技学院 | Nickel-based welding flux for braze welding on tube plate connectors and method for manufacturing nickel-based welding flux |
| WO2016131702A1 (en) * | 2015-02-17 | 2016-08-25 | Höganäs Ab (Publ) | Nickel based alloy with high melting range suitable for brazing super austenitic steel |
| CN106181115A (en) * | 2015-04-29 | 2016-12-07 | 海宁瑞奥金属科技有限公司 | Low spatter 9Ni steel nickel-based welding electrode |
| CN114152430A (en) * | 2021-12-24 | 2022-03-08 | 东方电气集团东方汽轮机有限公司 | Comprehensive performance evaluation method for surfacing layer of sealing surface of valve seat |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035530A (en) * | 1987-05-19 | 1989-09-13 | 机械工业委员会哈尔滨焊接研究所 | Novel CoNi-base antiwear buid-up welding alloy |
| US5395584A (en) * | 1992-06-17 | 1995-03-07 | Avco Corporation | Nickel-base superalloy compositions |
| CN1974106A (en) * | 2006-12-18 | 2007-06-06 | 北京矿冶研究总院 | Multicomponent nickel-based wear-resistant heat-resistant surfacing welding electrode and preparation method thereof |
| CN101342646A (en) * | 2008-08-18 | 2009-01-14 | 天津市铸金表面工程材料科技开发有限公司 | Nickel base alloy powder for intaking and exhausting valve sealing surface weld deposit of automobile |
| CN101342648A (en) * | 2008-08-18 | 2009-01-14 | 天津市铸金表面工程材料科技开发有限公司 | Iron-base alloy powder for high-pressure valve sealing surface weld deposit |
| CN102380716A (en) * | 2011-09-08 | 2012-03-21 | 北京工业大学 | Flux-cored wire for medium chromium boron-containing iron-based hardfacing and method for preparing surfacing alloys |
-
2012
- 2012-05-25 CN CN2012101679896A patent/CN102672368A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035530A (en) * | 1987-05-19 | 1989-09-13 | 机械工业委员会哈尔滨焊接研究所 | Novel CoNi-base antiwear buid-up welding alloy |
| US5395584A (en) * | 1992-06-17 | 1995-03-07 | Avco Corporation | Nickel-base superalloy compositions |
| CN1974106A (en) * | 2006-12-18 | 2007-06-06 | 北京矿冶研究总院 | Multicomponent nickel-based wear-resistant heat-resistant surfacing welding electrode and preparation method thereof |
| CN101342646A (en) * | 2008-08-18 | 2009-01-14 | 天津市铸金表面工程材料科技开发有限公司 | Nickel base alloy powder for intaking and exhausting valve sealing surface weld deposit of automobile |
| CN101342648A (en) * | 2008-08-18 | 2009-01-14 | 天津市铸金表面工程材料科技开发有限公司 | Iron-base alloy powder for high-pressure valve sealing surface weld deposit |
| CN102380716A (en) * | 2011-09-08 | 2012-03-21 | 北京工业大学 | Flux-cored wire for medium chromium boron-containing iron-based hardfacing and method for preparing surfacing alloys |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851544B (en) * | 2012-10-09 | 2015-04-01 | 天津市铸金表面工程材料科技开发有限公司 | Corrosion-resistant nickel-base alloy overlay welding powder |
| CN102851544A (en) * | 2012-10-09 | 2013-01-02 | 天津市铸金表面工程材料科技开发有限公司 | Corrosion-resistant nickel-base alloy overlay welding powder |
| CN103737196A (en) * | 2012-10-17 | 2014-04-23 | 沈阳工业大学 | Hardfacing alloy containing silicon and chromium composite ceramic phases and manufacturing process thereof |
| CN103737196B (en) * | 2012-10-17 | 2015-10-14 | 沈阳工业大学 | A kind of surfacing welding alloy containing Si, Cr composite ceramics phase and preparation technology thereof |
| CN104511702A (en) * | 2013-09-30 | 2015-04-15 | 利宝地工程有限公司 | Welding material for welding of superalloys |
| CN103785976A (en) * | 2013-12-13 | 2014-05-14 | 天津大学 | Hot roll surfacing submerged arc flux-cored welding wire and preparation method for same |
| CN104227214B (en) * | 2014-08-20 | 2016-01-20 | 镇江市华阳机电制造有限公司 | A kind of high sealing gas protection welding process for nuclear power bellows stop valve |
| CN104227214A (en) * | 2014-08-20 | 2014-12-24 | 镇江市华阳机电制造有限公司 | High-sealing gas-protecting welding process used for corrugated pipe stop valve for nuclear power |
| WO2016131702A1 (en) * | 2015-02-17 | 2016-08-25 | Höganäs Ab (Publ) | Nickel based alloy with high melting range suitable for brazing super austenitic steel |
| CN107223079A (en) * | 2015-02-17 | 2017-09-29 | 霍加纳斯股份有限公司 | The nickel-base alloy with high melting range suitable for soldering super austenitic steel |
| CN106181115A (en) * | 2015-04-29 | 2016-12-07 | 海宁瑞奥金属科技有限公司 | Low spatter 9Ni steel nickel-based welding electrode |
| CN104842088A (en) * | 2015-06-03 | 2015-08-19 | 浙江科技学院 | Nickel-based welding flux for braze welding on tube plate connectors and method for manufacturing nickel-based welding flux |
| CN114152430A (en) * | 2021-12-24 | 2022-03-08 | 东方电气集团东方汽轮机有限公司 | Comprehensive performance evaluation method for surfacing layer of sealing surface of valve seat |
| CN114152430B (en) * | 2021-12-24 | 2024-05-03 | 东方电气集团东方汽轮机有限公司 | Comprehensive performance evaluation method of surfacing layer of sealing surface of valve seat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102672368A (en) | Novel wear-resisting nickel-base overlaying alloy powder | |
| CN105269174B (en) | A kind of ocean engineering 460MPa grades of flux-cored wires and its application | |
| CN105945456B (en) | A kind of heat-resisting wear-resistant flux-cored wire | |
| EP2910663B1 (en) | Abrasion and corrosion resistant alloy and hardfacing/cladding applications | |
| CN102453910B (en) | Roller surface laser strengthened coating powder material of roller type crusher | |
| CN101391352B (en) | Flux-cored wire for repair cold-rolling support roll operational layer and preparation method thereof | |
| CN101462206A (en) | Carbide alloy welding wire or welding rod as well as manufacturing method and application thereof | |
| CN106271208B (en) | A kind of plasma surfacing nickel base self-fluxing hard-face overlaying welding flux-cored wire | |
| CN102677046B (en) | Alloy composite special for laser cladding of rolling mill housings | |
| CN112122821B (en) | Wear-resistant and corrosion-resistant flux-cored wire for TIG-P surfacing of hydraulic support component | |
| CN105420723A (en) | Laser-cladding material and preparation method thereof, aluminum bronze base surface modification material and preparation method thereof | |
| CN101342646A (en) | Nickel base alloy powder for intaking and exhausting valve sealing surface weld deposit of automobile | |
| CN108690946A (en) | A kind of surfacing dusty material and its preparation method and application | |
| CN104096989B (en) | A kind of engine valve built-up welding iron-based spray welding powder | |
| CN101342647B (en) | Iron-base alloy powder of oxygen acetylene flame jet soldering | |
| CN102814604B (en) | Bead weld flux-cored wire for repairing hammer forging die and preparation method | |
| CN108381050A (en) | A kind of high rigidity resistance to oxidation stainless steel bead welding wire and its preparation method and application | |
| CN107214436B (en) | Welding method of low-chromium-nickel ferritic stainless steel | |
| CN1603055A (en) | Flux-cored wire for supporting roller built-up welding | |
| CN101342648A (en) | Iron-base alloy powder for high-pressure valve sealing surface weld deposit | |
| CN101545088B (en) | Iron-based flux-cored electric arc spray-melting wire | |
| CN102672166B (en) | High-temperature wear-resisting iron-base alloy powder | |
| CN111618473B (en) | Ultra-high wear-resistant flux-cored wire for grate bar | |
| CN104233281A (en) | Cobalt base alloy powder for repairing supercharger nozzle ring of internal combustion engine | |
| CN114083177A (en) | Flux-cored wire for composite carbide reinforced nickel-based alloy surfacing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120919 |