CN104694827B - A kind of casting high strength wear-proof medium carbon steel and preparation method thereof - Google Patents
A kind of casting high strength wear-proof medium carbon steel and preparation method thereof Download PDFInfo
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- 238000005266 casting Methods 0.000 title claims abstract description 83
- 229910000954 Medium-carbon steel Inorganic materials 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 76
- 239000010959 steel Substances 0.000 claims abstract description 76
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052796 boron Inorganic materials 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 239000000126 substance Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 11
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 10
- 239000010936 titanium Substances 0.000 claims abstract description 10
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 239000010703 silicon Substances 0.000 claims abstract description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 8
- 239000011651 chromium Substances 0.000 claims abstract description 8
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 8
- 239000011572 manganese Substances 0.000 claims abstract description 8
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims abstract description 6
- 239000004411 aluminium Substances 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims description 10
- 229910052788 barium Inorganic materials 0.000 claims description 10
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052791 calcium Inorganic materials 0.000 claims description 10
- 239000011575 calcium Substances 0.000 claims description 10
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 claims description 10
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 10
- 150000002910 rare earth metals Chemical class 0.000 claims description 10
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005275 alloying Methods 0.000 abstract description 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 2
- 239000011733 molybdenum Substances 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 229910052720 vanadium Inorganic materials 0.000 abstract description 2
- 241001062472 Stokellia anisodon Species 0.000 abstract 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 4
- 239000010962 carbon steel Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 moreover Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a kind of casting high strength wear-proof medium carbon steel and preparation method thereof, the chemical composition and its mass percent of the casting medium carbon steel are：Carbon 0.32 0.45%, silicon 0.45 0.60%, manganese 0.80 1.15%, chromium 0.80 1.20%, boron 0.06 0.12%, titanium 0.06 0.12%, N 0.10 0.20%, P≤0.01%, S≤0.01%, surplus are iron.Preparation method：(1) smelt；(2) when liquid steel temperature reaches 1,600 1650 DEG C, sequentially add 1.6 1.8% metallic aluminium, 1.2 1.4% ferrosilicon, 4.5 5.5% ferro-boron and 0.2 0.4% ferrotianium of steel quality fraction, by molten steel heating to 1,700 1750 DEG C, insulation is come out of the stove after 34 hours, injects casting ladle；(3) microalloy treatment is carried out to molten steel；(4) skim, pour into casting mold；(5) it is heat-treated.The present invention is by rationally setting elemental composition in steel, without expensive alloying elements such as nickel, molybdenum, vanadium, and the casting medium carbon steel of preparation has hardness high, the characteristics of high temperature abrasion resistance is good, and with relatively low production cost.
Description
Technical field
The present invention relates to cast steel technical field, more particularly to a kind of casting high strength wear-proof medium carbon steel and preparation method thereof.
Background technology
Cast steel is the general name for being used to produce the ferrous alloy of casting that eutectic transformation is not suffered from process of setting, and casting is closed
One kind of gold.Cast steel is using iron, carbon as the alloy of essential element, carbon content 0-2%.So far cast steel be divided into cast carbon steel,
Cast low alloy steel and the casting class of special steel three.
The cast carbon steel cast steel for main alloy element and containing a small amount of other elements that is carbon, it is carbon containing to be less than 0.2% and be
Cast mild steel, carbon containing 0.2-0.5% for casting medium carbon steel, it is carbon containing be more than 0.5% for casting high-carbon steel, with phosphorus content
Increase, cast carbon steel intensity increase, hardness improve.Cast carbon steel have higher intensity, plasticity and toughness, cost compared with
It is low, it is used to manufacture the part for bearing big load, such as frame of rolling mill, hydraulic pressure machine base, in rolling stock in heavy-duty machinery
It is upper to be used to manufacture part such as bolster, side frame, wheel and hitch etc. that stress withstands shocks greatly again.Although cast steel technology obtains very big
Development, still, still with the presence of many problems, such as abrasion resistance, hardness, rustless property, decay resistance, high and low temperature resistance, crisp
Property, toughness, cost etc. can not take into account, be not met by the requirement of production in many occasions.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art there is provided a kind of casting high strength wear-proof medium carbon steel, with hard
Degree is high, the characteristics of high temperature abrasion resistance is good.
It is another object of the present invention to improve the preparation method of the casting high strength wear-proof medium carbon steel.
The present invention is adopted the following technical scheme that to achieve these goals：
A kind of casting high strength wear-proof medium carbon steel, the chemical composition and its mass percent of the casting medium carbon steel are：Carbon
0.32-0.45%, silicon 0.45-0.60%, manganese 0.80-1.15%, chromium 0.80-1.20%, boron 0.06-0.12%, titanium 0.06-
0.12%th, N 0.10-0.20%, P≤0.01%, S≤0.01%, surplus are iron.
Preferably, described casting high strength wear-proof medium carbon steel, the chemical composition and its quality percentage of the casting medium carbon steel
Than for：Carbon 0.38%, silicon 0.55%, manganese 0.95%, chromium 1.05%, boron 0.08%, titanium 0.08%, N 0.15%, P≤
0.01%th, S≤0.01%, surplus are iron.
The preparation method of described casting high strength wear-proof medium carbon steel, comprises the following steps：
(1) complex alloy cast-steel is smelted in electric furnace by the chemical composition of above-mentioned casting medium carbon steel and obtains molten steel；
(2) when liquid steel temperature reaches 1600-1650 DEG C, the 1.6-1.8% of steel quality fraction metal is sequentially added
Aluminium, 1.2-1.4% ferrosilicon, 4.5-5.5% ferro-boron and 0.2-0.4% ferrotianium, then by molten steel heating to 1700-1750
DEG C, insulation is come out of the stove after 3-4 hours, and molten steel is injected into casting ladle；
(3) rare earth ferrosilicomagnesium, silico-calcium barium aluminium alloy and vanadium iron are crushed to granularity for 8-10mm, drying is placed in casting ladle bottom
Portion, carries out microalloy treatment to molten steel, wherein rare earth ferrosilicomagnesium addition is molten steel matter in injection casting ladle with method is poured in bag
The 1.2-1.4% of fraction is measured, silico-calcium barium aluminium alloy addition is to inject the 1.2-1.4% of steel quality fraction in casting ladle, vanadium iron
Addition is to inject the 0.10-0.15% of steel quality fraction in casting ladle；
(4) skim, when liquid steel temperature is down to 1450-1500 DEG C, molten steel is poured into casting mold；
(5) casting is heat-treated after unpacking, sand removal, and casting quenching temperature is 1000-1100 DEG C, is incubated 2-4
Oil cooling after hour, then the temper at a temperature of 500-550 DEG C, room temperature is cooled to after being incubated 5-8 hours.
The composition design reason of the present invention is as follows：
Carbon, is most basic element in steel, influences maximum to intensity, hardness and wearability of steel etc.；
Silicon, can reduce the critical cooling rate of steel, and reinforced ferrite improves tensile strength and yield strength；
Manganese, has very big invigoration effect to steel, it is possible to increase intensity, hardness and the wearability of steel, while having solid solution
Strengthen effect；
Boron, can significantly improve the quenching degree of steel, moreover, boron is with that in the compound addition steel of titanium, can form tiny titanium boride, change
The intensity and wearability of kind steel；
Nitrogen, adds nitrogen in steel, forms high melting compound, improves the intensity and hardness of steel, while improving the wear-resisting of steel
Property；
Titanium, hence it is evident that refinement cast steel crystal grain, improves the intensity and toughness of steel, improves the wearability of steel；
P and S are the harmful elements for reducing the toughness of steel, it is therefore desirable to by the control of its content below 0.01%.
Compared with the prior art, beneficial effects of the present invention are as follows：
The present invention is by rationally setting elemental composition in steel, without the expensive alloying elements such as nickel, molybdenum, vanadium, the casting of preparation
Making medium carbon steel has hardness high, the characteristics of high temperature abrasion resistance is good, and with relatively low production cost.
Embodiment
The present invention is further illustrated with reference to embodiments, but the present invention is not limited only to these embodiments, not
On the premise of departing from present inventive concept, any improvement made is within the scope of the present invention.
Embodiment 1：
A kind of casting high strength wear-proof medium carbon steel, the chemical composition and its mass percent of the casting medium carbon steel are：Carbon
0.32%th, silicon 0.60%, manganese 0.80%, chromium 1.20%, boron 0.06%, titanium 0.06%, N 0.10%, P≤0.01%, S≤
0.01%th, surplus is iron.
The preparation method of described casting high strength wear-proof medium carbon steel, comprises the following steps：
(1) complex alloy cast-steel is smelted in electric furnace by the chemical composition of above-mentioned casting medium carbon steel and obtains molten steel；
(2) when liquid steel temperature reaches 1600 DEG C, sequentially add steel quality fraction 1.6% metallic aluminium, 1.4%
Ferrosilicon, 5.5% ferro-boron and 0.2% ferrotianium, then by molten steel heating to 1700 DEG C, insulation is come out of the stove after 4 hours, and by molten steel
Inject casting ladle；
(3) rare earth ferrosilicomagnesium, silico-calcium barium aluminium alloy and vanadium iron are crushed to granularity for 8mm, drying is placed in casting ladle bottom,
Microalloy treatment is carried out to molten steel with method is poured in bag, wherein rare earth ferrosilicomagnesium addition is steel quality point in injection casting ladle
Several 1.2%, silico-calcium barium aluminium alloy addition is inject steel quality fraction in casting ladle 1.4%, and vanadium iron addition is injection
The 0.10% of steel quality fraction in casting ladle；
(4) skim, when liquid steel temperature is down to 1450 DEG C, molten steel is poured into casting mold；
(5) casting is heat-treated after unpacking, sand removal, and casting quenching temperature is 1000 DEG C, oil after being incubated 4 hours
Cold, then the temper at a temperature of 500 DEG C, room temperature is cooled to after being incubated 8 hours.
The mechanical property of the casting medium carbon steel of the present embodiment 1 is：Tensile strength 1560MPa, hardness 65.6HRC, impact tough
Property 23J/cm2。
Embodiment 2：
A kind of casting high strength wear-proof medium carbon steel, the chemical composition and its mass percent of the casting medium carbon steel are：Carbon
0.38%th, silicon 0.55%, manganese 0.95%, chromium 1.05%, boron 0.08%, titanium 0.08%, N 0.15%, P≤0.01%, S≤
0.01%th, surplus is iron.
The preparation method of described casting high strength wear-proof medium carbon steel, comprises the following steps：
(1) complex alloy cast-steel is smelted in electric furnace by the chemical composition of above-mentioned casting medium carbon steel and obtains molten steel；
(2) when liquid steel temperature reaches 1650 DEG C, sequentially add steel quality fraction 1.8% metallic aluminium, 1.2%
Ferrosilicon, 5.0% ferro-boron and 0.3% ferrotianium, then by molten steel heating to 1730 DEG C, insulation is come out of the stove after 4 hours, and by molten steel
Inject casting ladle；
(3) rare earth ferrosilicomagnesium, silico-calcium barium aluminium alloy and vanadium iron are crushed to granularity for 10mm, drying is placed in casting ladle bottom,
Microalloy treatment is carried out to molten steel with method is poured in bag, wherein rare earth ferrosilicomagnesium addition is steel quality point in injection casting ladle
Several 1.3%, silico-calcium barium aluminium alloy addition is inject steel quality fraction in casting ladle 1.3%, and vanadium iron addition is injection
The 0.13% of steel quality fraction in casting ladle；
(4) skim, when liquid steel temperature is down to 1480 DEG C, molten steel is poured into casting mold；
(5) casting is heat-treated after unpacking, sand removal, and casting quenching temperature is 1080 DEG C, oil after being incubated 3 hours
Cold, then the temper at a temperature of 530 DEG C, room temperature is cooled to after being incubated 6 hours.
The mechanical property of the casting medium carbon steel of the present embodiment 1 is：Tensile strength 1630MPa, hardness 68.7HRC, impact tough
Property 29J/cm2。
Embodiment 3：
A kind of casting high strength wear-proof medium carbon steel, the chemical composition and its mass percent of the casting medium carbon steel are：Carbon
0.45%th, silicon 0.60%, manganese 0.80%, chromium 1.20%, boron 0.12%, titanium 0.12%, N 0.20%, P≤0.01%, S≤
0.01%th, surplus is iron.
The preparation method of described casting high strength wear-proof medium carbon steel, comprises the following steps：
(1) complex alloy cast-steel is smelted in electric furnace by the chemical composition of above-mentioned casting medium carbon steel and obtains molten steel；
(2) when liquid steel temperature reaches 1650 DEG C, sequentially add steel quality fraction 1.8% metallic aluminium, 1.4%
Ferrosilicon, 5.5% ferro-boron and 0.4% ferrotianium, then by molten steel heating to 1750 DEG C, insulation is come out of the stove after 3 hours, and by molten steel
Inject casting ladle；
(3) rare earth ferrosilicomagnesium, silico-calcium barium aluminium alloy and vanadium iron are crushed to granularity for 10mm, drying is placed in casting ladle bottom,
Microalloy treatment is carried out to molten steel with method is poured in bag, wherein rare earth ferrosilicomagnesium addition is steel quality point in injection casting ladle
Several 1.4%, silico-calcium barium aluminium alloy addition is inject steel quality fraction in casting ladle 1.4%, and vanadium iron addition is injection
The 0.15% of steel quality fraction in casting ladle；
(4) skim, when liquid steel temperature is down to 1500 DEG C, molten steel is poured into casting mold；
(5) casting is heat-treated after unpacking, sand removal, and casting quenching temperature is 1100 DEG C, oil after being incubated 2 hours
Cold, then the temper at a temperature of 550 DEG C, room temperature is cooled to after being incubated 8 hours.
The mechanical property of the casting medium carbon steel of the present embodiment 1 is：Tensile strength 1580MPa, hardness 66.7HRC, impact tough
Property 27J/cm2。
Claims (2)
1. a kind of casting high strength wear-proof medium carbon steel, it is characterised in that：The chemical composition and its quality percentage of the casting medium carbon steel
Than for：Carbon 0.32-0.45%, silicon 0.45-0.60%, manganese 0.80-1.15%, chromium 0.80-1.20%, boron 0.06-0.12%, titanium
0.06-0.12%, N 0.10-0.20%, P≤0.01%, S≤0.01%, surplus are iron；
The preparation method of described casting high strength wear-proof medium carbon steel, comprises the following steps：
(1) complex alloy cast-steel is smelted in electric furnace by the chemical composition of above-mentioned casting medium carbon steel and obtains molten steel；
(2) when liquid steel temperature reaches 1600-1650 DEG C, sequentially add the 1.6-1.8% of steel quality fraction metallic aluminium,
The ferrotianium of 1.2-1.4% ferrosilicon, 4.5-5.5% ferro-boron and 0.2-0.4%, then by molten steel heating to 1700-1750 DEG C,
Insulation is come out of the stove after 3-4 hours, and molten steel is injected into casting ladle；
(3) rare earth ferrosilicomagnesium, silico-calcium barium aluminium alloy and vanadium iron are crushed to granularity for 8-10mm, drying is placed in casting ladle bottom, uses
Method is poured in bag microalloy treatment is carried out to molten steel, wherein rare earth ferrosilicomagnesium addition is steel quality fraction in injection casting ladle
1.2-1.4%, silico-calcium barium aluminium alloy addition be inject casting ladle in steel quality fraction 1.2-1.4%, vanadium iron addition
It is the 0.10-0.15% for injecting steel quality fraction in casting ladle；
(4) skim, when liquid steel temperature is down to 1450-1500 DEG C, molten steel is poured into casting mold；
(5) casting is heat-treated after unpacking, sand removal, and casting quenching temperature is 1000-1100 DEG C, is incubated 2-4 hours
Oil cooling afterwards, then the temper at a temperature of 500-550 DEG C, room temperature is cooled to after being incubated 5-8 hours.
2. casting high strength wear-proof medium carbon steel according to claim 1, it is characterised in that：The casting medium carbon steel chemistry into
Divide and its mass percent is：Carbon 0.38%, silicon 0.55%, manganese 0.95%, chromium 1.05%, boron 0.08%, titanium 0.08%, N
0.15%th, P≤0.01%, S≤0.01%, surplus are iron.
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| CN106801200B (en) * | 2017-02-07 | 2019-01-25 | 和县隆盛精密机械有限公司 | A kind of abrasion-resistant stee and its preparation process suitable for mechanical arm processing |
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| CN115323284A (en) * | 2021-04-25 | 2022-11-11 | 日照东昌铸业股份有限公司 | Boron-rich slag-containing wear-resistant cast steel and preparation method thereof |
| CN113789477B (en) * | 2021-09-16 | 2022-08-02 | 大连交通大学 | Cast steel shot with low-carbon martensite structure and preparation process thereof |
| CN114346234B (en) * | 2022-01-07 | 2024-04-16 | 鞍钢股份有限公司 | Wear-resistant stainless steel powder and preparation method and application thereof |
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