CN1293262A - Martensite stainless steel for golf club head - Google Patents
Martensite stainless steel for golf club head Download PDFInfo
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- CN1293262A CN1293262A CN00131681A CN00131681A CN1293262A CN 1293262 A CN1293262 A CN 1293262A CN 00131681 A CN00131681 A CN 00131681A CN 00131681 A CN00131681 A CN 00131681A CN 1293262 A CN1293262 A CN 1293262A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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Abstract
A martensitic stainless steel for golf club head has a higher tensile strength and yield strength than that of 431 martensitic stainless steel, that of precipitation hardening stainless steel, or that of titanium alloy, has an equal tensile strength, yield strength and hardness to that of mar-aging steel, has a higher corrosion resistance than that of 304 stainless steel, has excellent corrosion resistance comparable to that of 316 stainless steel, and is economical. The martensitic stainless steel for a golf club head comprising 12 to 16 wt.% of Cr, 1.0 to 3.0 wt.% of Ni, 1.5 to 5.0 wt.% of Mo, no more than 0.5% of V, no more than 2.0 wt.% of Si, no more than 2.0 wt.% of Mn, 0.1 to 0.6 wt.% of C, 0.1 to 0.3 wt.% of N, and the balance consisting of Fe and inevitable impurities.
Description
The invention relates to have good corrosion resistance, the Martensite Stainless Steel of mechanical property and high strength wear resistance, that be used for golf club head and high corrosion resistance.
Disclose the Martensite Stainless Steel of a kind of high strength and high corrosion resistance before this among the korean patent application No 127955 (patent disclosure No 1997-9523) that the inventor submits to, this steel has good anti-corrosion and wear resistance in the corrosive environment that has chlorion (Cl-) to exist.
Disclosed steel has good anti-corrosion in the above-mentioned patent, simultaneously, compares with existing 420J Martensite Stainless Steel and to have similar or higher intensity and hardness.This steel also has an advantage to be, it has and is higher than 304 stainless erosion resistancies and has and erosion resistance like 316 stainless steel-likes, and it has higher intensity and the hardness of 304 or 316 stainless steels that has good corrosion resistance than known simultaneously.
Material as golf club, present already used have carbon steel, aluminium alloy, 18-8 austenitic stainless steel (for example 304 stainless steels or 316 stainless steels), 431 Martensite Stainless Steels, 17-4 PH Stainless Steel, martensite aged stainless steel, pure titanium, titanium alloy and copper-beryllium alloy, these materials are to use with the form of cast article or forging product.Specification of quality for the golf ball bar material has: the sensation of erosion resistance, wear resistance, high surface hardness, mechanical property, weather resistance, outward appearance and square stance.
But with regard to above-mentioned materials, the golf ball bar material of carbon steel class needs chromium plating to get rusty preventing after club is made because erosion resistance is lower.In addition, because this class material its intensity for the golf club purposes is lower and surface hardness is also lower, so their use trends towards reducing.
Aluminium alloy class material is because its lower intensity and hardness cause club need make bigger size, thereby is difficult to golf club.
The 18-8 austenitic stainless steel is as 304 stainless steels or 316 stainless steels, although have good anti-corrosion, its shortcoming is to have relatively poor tensile strength and yield strength, and hardness is lower, and wear resistance is relatively poor.
In order to overcome the relatively poor shortcoming of above-mentioned mechanical property, people bring into use 431 Martensite Stainless Steels and 17-4 PH Stainless Steel as the golf ball bar material recently.
In addition, because maraging steel has high intensity and hardness, people bring into use maraging steel as new golf ball bar material recently, to improve the flying distance of golf ball.
Titanium alloy is used widely owing to having sufficiently high intensity and hardness, but its price is more expensive, thereby very uneconomical.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of Martensite Stainless Steel that is used for golf club head, it has tensile strength and the yield strength higher than 431 Martensite Stainless Steels, PH Stainless Steel or titanium alloy, has the tensile strength, yield strength and the hardness that equate with maraging steel, have the erosion resistance higher than 304 stainless steels, have the erosion resistance suitable with 316 stainless steels, and very economical.
To achieve these goals and advantage, the invention provides a kind of Martensite Stainless Steel that is used for golf club head, it contains (weight %) 12-16%Cr, 1.0-3.0%Ni, 1.5-5.0%Mo, be no more than 0.5% V, be no more than 2.0%Si, be no more than 2.0%Mn, 0.1-0.6%C, 0.1-0.3%N, and surplus is Fe and unavoidable impurities.
Brief description of drawings
Include some accompanying drawings in this specification sheets, these accompanying drawings have constituted a part of the present invention, in order to explanation embodiment of the present invention, and are used from specification sheets one and explain principle of the present invention.
In the accompanying drawings:
Fig. 1 is expression alloy 1,2 of the present invention and 3 and the graphic representation of AISI 304, AISI 316 and the stainless anodic polarization test-results of 420J;
Fig. 2 is expression alloy 4 of the present invention and 5 and the graphic representation of AISI 304, AISI 316 and the stainless anodic polarization test-results of 420J;
Fig. 3 is that expression is carried out austenitation heat treatment 3 hour with alloy at 1050 ℃ according to the present invention, then the graphic representation that hardness of alloy changes when each tempering temperature is heat-treated 1 hour;
Fig. 4 is that expression is carried out austenitation heat treatment 3 hour with alloy at 1050 ℃ according to the present invention, then the graphic representation that tensile strength of alloys and unit elongation change when each tempering temperature is heat-treated 1 hour.
The detailed description of preferred implementation
Describe preferred implementation of the present invention below in detail, and with reference to description of drawings embodiment.
The performance that the golf ball bar material requires to have can be enumerated: the sensation of erosion resistance, wear resistance, high surface hardness, mechanical property, weather resistance, outward appearance and square stance.Wherein, for making golf club, the hardness of material, intensity and wear resistance are considered to very important performance.
When the golfer used iron type golf club golf ball, golf ball and club head bumped in a short period of time each other, and club head absorbs energy in collision process.The time of golf ball and club head collision is long more, and the energy that club head absorbed is just many more, and this energy that will cause passing to golf ball reduces, thereby promotes the reactive force minimizing of golf ball, and its flying distance shortens.
Therefore, along with the raising of the intensity and the hardness on golf club surface, the time that golf ball stops on club face shortens, and more energy is delivered to golf ball like this, increase the speed when golf ball leaves club, thereby increased the flying distance of golf ball.
In addition, the laminar martensite that exists in the microstructure of steel can strengthen its cushioning ability, and the golfer has a kind of soft sensation at square stance like this.
Depend on golfer's the striking speed and the length of club, the strength that puts on club head is different, estimates roughly, when golfer's square stance is applied to nearly 1 ton of load on the club face.If the strength of materials of club is not high enough, big like this load is enough to make golf club to deform.
Austenitic stainless steel is 304 or 316 stainless steels for example because its hardness, yield strength and tensile strength are lower, thereby under so big load easy deformation.In addition, when golfer's square stance,, the outward appearance of club is worsened because the effect of turf, earth or sand may produce wearing and tearing on the surface of club.Therefore, for golf club head, except hardness and intensity, suitable wear resistance also is an important factor.
The composition of the golf club head material of the invention described above is determined according to following reason.
Cr:12-16% (weight)
The main purpose of adding Cr is to improve erosion resistance.For stainless steel, Cr obtains the requisite element of good corrosion resistance.Cr combines with oxygen, forms the thin oxide passivation film of one deck on the surface of steel, and it has played the effect of barrier, has suppressed the reaction between material and the surrounding environment, improves the erosion resistance of material by anti-oxidation or corrosion.
But if the Cr in the Martensite Stainless Steel is too much, this alloy composite will be transformed into cable body phase stable range from the austenite one phase district when high temperature, at room temperature can not obtain martensitic phase, thereby steel can not harden.In addition, the generation of ferritic phase causes the deterioration of erosion resistance, intensity and hardness, so the content of Cr is restricted to 12-16% (weight), and the generation of cable body phase can obtain maximum inhibition on this contents level.
Ni:1.0-3.0% (weight)
The effect of Ni is that stable austenite produces with the inhibition ferrite mutually.Ni can also improve erosion resistance and bending fatigue strength.But, excessive if Ni adds, austenite phase stabilization can not form martensite when air cooling or oil cooling, causes producing the residual austenite phase, thereby makes the intensity of material and hardness reduce.Therefore, for the Martensite Stainless Steel that golf club head is used, the content of Ni is restricted to and is no more than 3.0% (weight).When the addition of Ni is lower than 1.0% (weight),, thereby can not further add the Cr and the Mo that can improve erosion resistance because at high temperature γ-ring (being the austenite stable region) can not fully enlarge.
Mo:1.5-5.0% (weight)
The purpose of adding Mo in stainless steel is:
1) improves erosion resistance;
2) improve high-temperature mechanical property; And
3) for Martensite Stainless Steel, improve resistance to tempering and intensity.
That is to say, improve for the tempered drag, produce secondary hardening, thereby can obtain best ductility, toughness and stress-corrosion-cracking resistance by adding Mo.
When existing simultaneously,, preferably add the Mo that is no less than 1.5% (weight) because the synergy of Mo and N can significantly improve erosion resistance with N.But the addition of Mo preferably is no more than 5% (weight), and this is because the content of Mo surpasses 5% (weight) can cause that ferritic phase forms, and causes intensity, hardness and erosion resistance to worsen.
C:0.1-0.6% (weight)
The effect of carbon is the stable austenite phase and helps to improve intensity and hardness.By adding carbon, the austenite phase region enlarges, and improves erosion resistance to realize interpolation Cr and Mo, and suppresses the formation of delta ferrite.Along with carbon content increases, hardness value increases.But if carbon content then can not obtain enough intensity and hardness less than 0.1% (weight), and martensitic transformation can not take place.Otherwise if carbon content surpasses 0.6% (weight), carbide precipitation is separated out, and causes anti-grain boundary corrosion and ductility to reduce.Therefore, the optimum range of carbon content is 0.1-0.6% (weight).
N:0.1-0.3% (weight)
The same with carbon, nitrogen is the very effective alloying element that enlarges the austenite phase region.In addition, nitrogen is dissolved in the sosoloid with the form of interstitial atom, has the effect that steel is strengthened.Except this effect, the main purpose of adding nitrogen is to improve erosion resistance.When nitrogen and molybdenum exist simultaneously, can significantly improve erosion resistance and anti-grain boundary corrosion by synergy.Specifically, when nitrogen and molybdenum existed simultaneously, it was enriched in the passive film that forms on the steel surface chromic oxide significantly.But, surpassed its solid solubility if add nitrogen, can produce bubble during casting, form casting flaw, so the content of nitrogen is restricted to the scope of 0.1-0.3% (weight).
V :～0.5% (weight)
Vanadium can suppress the generation of poor chromium layer effectively, improves the solid solubility of nitrogen, suppresses the austenitic grain growth that counter-rotating becomes.But, can cause during excessive add that the ductility of steel reduces, so its content is restricted to and is no more than 0.5% (weight).
Si :～2.0% (weight)
Si adds with the form of Ca-Si, its objective is for deoxidation.When making cast article, silicon can improve molten metal flow.But because its promotes the formation of delta ferrite and hot workability is worsened, so the content of silicon is restricted to and is no more than 2.0% (weight).
Mn :～2.0% (weight)
As a kind of austenite stabilizer element, Mn enlarges the austenite phase region.But,, damage the surface quality of steel plate, thereby the upper limit of Mn is no more than 2.0% (weight) because it reduces ductility and produce oxide skin in annealing process.
For the steel that contains above-mentioned alloying element of the present invention, in order to keep high intensity and high erosion resistance, must under suitable temperature, carry out the solution treatment and the austenitation heat treatment of appropriate time, otherwise the over-all properties of steel of the present invention just may reduce to it.
The explanation of preferred implementation
The following describes manufacture method and the mechanical property and the erosion resistance evaluation test of an example of steel of the present invention.
The preparation sample
Use high frequency induction furnace, the sample of melting steel of the present invention in alumina crucible and in the atmospheric atmosphere, the raw material of this sample comprises commercially pure electrolytic iron (purity 99.9%), chromium (purity 99.2%), molybdenum (purity 99.9%), Fe-Si, Fe-Cr-N.With the order shove charge of above-mentioned materials by pure iron (it is a refractory metal), Mo, Cr, Ni and Fe-Cr-N.The tapping temperature of molten metal is set at about 1600 ℃, and melt metal is injected the rectangle mold of process preheating, makes ingot casting.With the ingot grinding of making or be processed into suitable size.The gained ingot casting is at 1100 ℃ of following soaking 1 hour, hot rolling and air cooling then.
Under 950-1050 ℃, carry out austenitation heat treatment 3 hours through the hot rolled steel, carry out tempering heat treatment then.Mechanical property and erosion resistance by the resulting steel of following test evaluation.The chemical ingredients of alloy of the present invention shown in the table 1, comparison alloy and conventional steel is for comparing.The chemical ingredients (weight %) of [table 1] steel of the present invention, compared steel and conventional steel
The test-results of erosion resistance
| ????C | ????N | ????Si | ????Mn | ????Ni | ????Cr | ????Mo | ?V | ||
| Steel of the present invention | ????1 | ?0.24 | ?0.16 | ?0.52 | ?0.57 | ?2.06 | ?14.86 | ?3.06 | ?0.27 |
| ????2 | ?0.5 | ?0.17 | ?0.60 | ?0.50 | ?2.3 | ?13.8 | ?3.3 | ?0.2 | |
| ????3 | ?0.34 | ?0.11 | ?0.76 | ?0.72 | ?2.06 | ?15.4 | ?2.42 | ?0.24 | |
| ????4 | ?0.41 | ?0.17 | ?0.98 | ?1.62 | ?2.02 | ?15.5 | ?3.02 | ?0.26 | |
| ????5 | ?0.22 | ?0.16 | ?0.48 | ?0.58 | ?2.02 | ?14.99 | ?1.56 | ?0.26 | |
| ????6 | ?0.25 | ?0.16 | ?0.52 | ?0.56 | ?2.06 | ?15.14 | ?3.93 | ?0.27 | |
| Compared steel | ????1 | ?0.21 | ?0.08 | ?0.48 | ?0.54 | ?2.16 | ?15.02 | ?3.08 | ?0.28 |
| ????2 | ?0.27 | ?0.04 | ?0.51 | ?0.54 | ?2.11 | ?15.03 | ?3.04 | ?0.27 | |
| ????3 | ?0.27 | ?0.01 | ?0.52 | ?0.54 | ?2.2 | ?13.25 | ?0.01 | ?0.20 | |
| ????4 | ?0.27 | ?0.02 | ?0.47 | ?0.52 | ?2.4 | ?12.11 | ?1.95 | ?0.21 | |
| ????5 | ?0.30 | ?0.13 | ?0.54 | ?0.55 | ?2.0 | ?13.0 | ?0.007 | ?0.27 | |
| ????6 | ?0.28 | ?0.16 | ?0.48 | ?0.55 | ?3.01 | ?15.03 | ?3.07 | ?0.28 | |
| Conventional steel | ?304ASS* | ?0.015 | ???- | ?0.41 | ?1.09 | ?10.12 | ?18.36 | ???- | ????- |
| ?316ASS | ?0.011 | ?0.019 | ?0.52 | ?1.78 | ?12.26 | ?17.43 | ?2.21 | ????- | |
| ?420MSS*,* | ?0.30 | ???- | ?0.74 | ?0.43 | ?0.23 | ?13.54 | ???- | ????- | |
| * ASS: austenitic stainless steel * * MSS: Martensite Stainless Steel | |||||||||
Adopt the anodic polarization test method to estimate erosion resistance, this method is to adopt electrochemical means to estimate erosion resistance.Under 35 ℃ temperature, in 3.5% (weight) NaCl testing liquid, use potentiostat on anode direction, to begin to apply current potential from corrosion potential, measure current potential-current density curve.Estimate erosion resistance according to critical current density, passive current density and pitting attack current potential.That is, critical current density and passive current density are low more, and erosion resistance is strong more, and it is high more to produce the pitting attack current potential, and erosion resistance is high more.
Fig. 1 and Fig. 2 are the graphic representations of the anodic polarization test-results of expression alloy of the present invention, compared steel and conventional steel.According to this test-results, the pitting attack current potential of all steel of the present invention all is higher than 304 stainless steels, and the passive current density of steel of the present invention all is lower than 304 stainless steels, and the pitting attack current potential of steel of the present invention is identical or higher substantially with 316 stainless steels.
Generally speaking, the erosion resistance of steel of the present invention is better than 304 stainless steels, and is equal or higher with 316 stainless erosion resistancies.
The evaluation of mechanical property
In order to estimate mechanical property, carry out tension test, hardness test and damping performance test.The sample that is used for tension test is processed to the size of ASTM standard code, and its gauge length is partly with being up to #600 SiC sand papering, and the speed of dividing with 10mm/ is carried out tension test then, measures tensile strength and unit elongation.Use Rockwell hardness tester, apply 150kg load, press the C scale and measure hardness value.
The hardness test result of alloy of the present invention and compared steel shown in the table 2.Fig. 3 and Fig. 4 are the hardness of expression alloy 1 of the present invention and the graphic representation of stretch test result, alloy 1 of the present invention is the material that is suitable as golf club among the present invention most, it is 1050 ℃ of following thermal treatments 3 hours, then tempering heat treatment at each temperature 1 hour.
Alloy of the present invention all demonstrates the good hardness value that is higher than HRC50.In addition, observe the changes in hardness that produces along with tempering temperature, be lower than under 550 ℃ the tempering temperature, these alloys have the hardness that is higher than HRC50.These tensile strength of alloys are 180kg/mm
2, this shows, when they during 550 ℃ of following temperature tempering, obtain almost constant intensity.The erosion resistance and the mechanical property of [table 2] steel of the present invention, comparative steel and conventional steel
| Mechanical property | Erosion resistance | ||||
| Hardness value | Yield strength | Tensile strength | Pitting attack current potential vs.SCE | ||
| Steel of the present invention | ????1 | ?HRC52 | ????168 | ????180 | ????420 |
| ????2 | ?HRC56 | ????180 | ????190 | ????410 | |
| ????3 | ?HRC52 | ????170 | ????185 | ????520 | |
| ????4 | ?HRC51 | ????172 | ????185 | ????730 | |
| ????5 | ?HRC53 | ????175 | ????188 | ????340 | |
| ????6 | ?HRC50 | ????160 | ????173 | ????320 | |
| Comparative steel | ????1 | ?HRC50 | ????152 | ????168 | ????280 |
| ????2 | ?HRC46 | ????149 | ????163 | ????250 | |
| ????3 | ?HRC51 | ????170 | ????1?82 | ????75 | |
| ????4 | ?HRC51 | ????172 | ????185 | ????130 | |
| ????5 | ?HRC55 | ????180 | ????192 | ????120 | |
| ????6 | ?HRC47 | ????140 | ????157 | ????280 | |
| Conventional steel | 304SS | ?HRB80 | ????24 | ????58 | ????280 |
| ?316SS | ?HRB82 | ????26 | ????58 | ????330 | |
| ?420SS | ?HRB51 | ????150 | ????170 | ????180 | |
In order to reach desired suitable intensity of the steel that can be used for golf club and erosion resistance, observe the influence of each alloying element by the chemical ingredients that changes compared steel and steel of the present invention.
Determine the influence of carbon by steel 1 of the present invention and 2, by steel 1,5 of the present invention and 6 and compared steel 5 determine the influence of Mo.Determine the influence of N by steel 1 of the present invention, compared steel 1,2 and 4.Determine the influence of Ni by steel 1 of the present invention and compared steel 6.Determine the influence of combination interpolation N and Mo by steel 1 of the present invention and compared steel 6.
It is Cr:12～16% (weight), Ni:1.0-3.0% (weight), Mo:11.5% (weight), V～0.5% (weight), Si with the alloying constituent that is better than 304 stainless erosion resistances that the acquisition tool is higher than the HRC50 hardness value :～2.0% (weight), Mn :～2.0% (weight), C:0.1～0.6% (weight), N:0.1～0.3% (weight), surplus is Fe and unavoidable impurities.
The embodiment of golf club head
Fig. 3 represents between yield strength, tensile strength and the hardness of present employed golf ball bar material and alloy of the present invention 1 graphic representation relatively.The comparison of the mechanical property of [table 3] alloy of the present invention and conventional steel
| Yield strength (kg/mm 2) | Tensile strength (kg/mm 2) | Hardness | |
| Steel of the present invention | ????168 | ????179 | ????HRC51 |
| 304 stainless steels | ????24 | ????58 | ????HRB80 |
| 316 stainless steels | ????26 | ????58 | ????HRB82 |
| 431 stainless steels | ????104 | ????130 | ????HRC36 |
| The 17-4PH stainless steel | ????113 | ????118 | ????HRC35 |
| Maraging steel | ????180 | ????186 | ????HRC51 |
| Pure titanium | ????44 | ????56 | ????HRC20 |
| The Ti-6V-4Al alloy | ????84 | ????95 | ????HRC39 |
Compare with titanium alloy with 304 stainless steels, 316 stainless steels, 431 Martensite Stainless Steels, the 17-4 PH Stainless Steel that are used at present with the golf material, steel of the present invention has superior yield strength, the hardness of tensile strength, has the mechanical property similar with maraging steel simultaneously.
Therefore, when adopting steel of the present invention,, thereby can reduce the time that golf ball contacts with club face because it has high intensity and hardness as the golf ball bar material, can pass to golf ball to more energy, golf ball just can be with bigger speed flight like this.That is to say that because impellent increases, the flying distance of golf ball can obviously increase.
In addition, owing to have high surface hardness, wear resistance is good, thereby the golfer plays and when training, turf, earth or sand are not easy wearing and tearing are caused on the surface of club head, thereby club face can keep smooth, has good surface appearance.
The damping property of table 4 expression steel of the present invention and compared steel.Steel of the present invention is owing to have some laminar martensites in its microstructure, and damping property is good.Therefore, square stance can not produce very big sound and vibration, and golfer's square stance has a kind of light and soft sensation.The damping property of [table 4] alloy of the present invention and conventional steel relatively
| Alloy of the present invention | 431 stainless steels | The 17-RPH stainless steel | 304 stainless steels | 316 stainless steels | |
| Vibration damping (SDC, %) | 5 | 2．2 | 2．1 | 2．4 | 2．4 |
| The SR-3MO/ comparative material | 1 times | 2.3 doubly | 2.5 doubly | 2.1 doubly | 2.1 doubly |
The outward appearance of golf ball bar material and erosion resistance and wear resistance are closely related.The golf ball bar material of carbon steel class is owing to have lower erosion resistance, thereby needs to electroplate in the above Cr get rusty preventing after club is made.Plating Cr layer thickness on the material surface is tens microns, and therefore, if golf club scratches or be easy to generate wearing and tearing easily when playing ball, it will be corroded.Along with the club access times increase, its outward appearance runs down.
Therefore, need to use a kind of material that has good corrosion resistance thereby handle itself without any need for special surface.As everyone knows, the stainless erosion resistance of 431 Martensite Stainless Steels and 17-4 precipitation hardness is lower than 304 stainless steels and 316 stainless steels.In addition, according to reports, when 431 Martensite Stainless Steels and 17-4 PH Stainless Steel are used as the golf ball bar material, be not easy to produce corrosion.
Be higher than 304 stainless erosion resistances and the erosion resistance identical substantially because steel of the present invention has, thereby be suitable for the golf ball bar material, can not produce corrosion with 316 stainless steels.
In addition, steel of the present invention also has an advantage, i.e. its easy welding.Making under the situation of golf club head by casting, usually needing to repair welding.Golf club head that big load needs high hardness and intensity normally makes 2 or 3 steel plate welding owing to bearing, thereby the golf club material welding performance is very important.In general, when Martensite Stainless Steel is soldered, in order to suppress the formation of welding crack, need preheating under 200-400 ℃ temperature.The formation of crackle is owing to the martensitic transformation that takes place in hydrogen that can spread and the process of setting causes.Because the Ms point is higher, martensitic transformation takes place in most of Martensite Stainless Steel easily in process of cooling.
But for steel of the present invention, its Ms point is about 80 ℃, and is lower 100-150 ℃ than other Martensite Stainless Steel, thereby martensitic transformation is at room temperature to carry out, and the formation of crackle is suppressed.That is to say that stainless steel of the present invention can be easy to welding, do not need through preheating.
In sum, Martensite Stainless Steel of the present invention has high intensity and high erosion resistance, its intensity and erosion resistance are better than conventional golf ball bar material, for example carbon steel, 18-8 austenitic stainless steel, 431 Martensite Stainless Steels and 17-4 PH Stainless Steel.In addition, stainless steel of the present invention has the mechanical property that is equivalent to maraging steel and has good anti-corrosion.
Can obtain following effect when therefore, stainless steel of the present invention is used as the golf club head material.That is, because steel of the present invention has intensity and the hardness that is higher than the conventional golf club material, thereby when golfer's square stance, golf ball is because its flying distance increase of bigger impellent.Because it has good damping property, the feeling good of golf ball forehand hit.In addition, it has the erosion resistance of good wear resistance, and club is not easy to get rusty, and can keep clean outward appearance.In addition, because it can be being lower than the cost manufacturing of some conventional golf club material, thereby its production cost is lower.
Because the present invention can realize and can not depart from its spirit or essential characteristic in several different concrete modes, self-evident, except as otherwise noted, above-mentioned embodiment is not subjected to the above-mentioned restriction that specifies, the spirit and scope of the present invention obtain explaining in the appended claims, therefore, falling into all changes of described condition of claim and boundary and the equivalent of remodeling or these conditions and boundary all is included in the described claim scope.
Claims (1)
1. the Martensite Stainless Steel that is used for golf club head, it is characterized in that, contain (weight %): 12-16%Cr, 1.0-3.0%Ni, 1.5-5.0%Mo, be no more than 0.5% V, be no more than 2.0%Si, be no more than 2.0%Mn, 0.1-0.6%C, 0.1-0.3%N, surplus is Fe and unavoidable impurities.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990033664A KR100329841B1 (en) | 1999-08-16 | 1999-08-16 | Martensitic stainless steel for golf club head |
| KR33664/1999 | 1999-08-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1293262A true CN1293262A (en) | 2001-05-02 |
| CN1108396C CN1108396C (en) | 2003-05-14 |
Family
ID=19607324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00131681A Expired - Fee Related CN1108396C (en) | 1999-08-16 | 2000-08-16 | Martensite stainless steel for golf club head |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3328646B2 (en) |
| KR (1) | KR100329841B1 (en) |
| CN (1) | CN1108396C (en) |
| TW (1) | TW527426B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463996C (en) * | 2004-03-26 | 2009-02-25 | 山特维克知识产权股份有限公司 | Steel alloy for cutting details |
| CN103173693A (en) * | 2011-12-22 | 2013-06-26 | 北京正安广泰新材料科技有限公司 | Novel ultra-high-strength stainless steel |
| CN103239841A (en) * | 2012-02-09 | 2013-08-14 | 住胶体育用品株式会社 | Golf club head |
| CN106676410A (en) * | 2017-03-02 | 2017-05-17 | 嘉兴博朗金属科技有限公司 | Multi-layer composite stainless steel material and preparation method thereof |
| CN106947922A (en) * | 2017-03-13 | 2017-07-14 | 浙江工贸职业技术学院 | A kind of martensite steel and its structure hardening processing method |
| CN110760734A (en) * | 2019-12-04 | 2020-02-07 | 海安县鹰球粉末冶金有限公司 | High-density, high-wear-resistance and high-corrosion-resistance stainless steel material and production method thereof |
| CN111304550A (en) * | 2020-03-12 | 2020-06-19 | 艾诺克(成都)机械制造有限公司 | Golf club head-rolling material and preparation method and application thereof |
| CN111424221A (en) * | 2020-03-27 | 2020-07-17 | 嘉兴吉森科技有限公司 | Stainless steel plate for lamination and manufacturing method thereof |
| CN112501492A (en) * | 2019-09-16 | 2021-03-16 | 明安国际企业股份有限公司 | Alloy composition of golf club head |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002143351A (en) * | 2000-11-07 | 2002-05-21 | Mizuno Corp | Golf club |
| CN100363524C (en) * | 2005-03-17 | 2008-01-23 | 上海材料研究所 | Anticorrosion and antiwear martensitic stainless steel and its production method and use |
| CN101307417B (en) * | 2007-05-14 | 2010-12-22 | 蒋铭瑞 | Methods of manufacturing high strength titan alloy golf club head component and products thereof |
| CN102888570A (en) * | 2012-10-08 | 2013-01-23 | 颜重乐 | Stainless steel alloy for golf ball head |
| JP5745555B2 (en) * | 2013-02-28 | 2015-07-08 | 復盛應用科技股▲分▼有限公司 | Golf club head alloy |
| CN106267755B (en) * | 2016-08-18 | 2018-12-21 | 管仙福 | High-intensitive glof club head |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970009523B1 (en) * | 1994-12-29 | 1997-06-14 | 박용수 | High strength & high corrosion resistance of martensite stainless steel |
| CN1165871A (en) * | 1996-05-22 | 1997-11-26 | 哈尔滨工业大学 | Martensite aged steel golf ball head |
-
1999
- 1999-08-16 KR KR1019990033664A patent/KR100329841B1/en not_active IP Right Cessation
-
2000
- 2000-08-16 JP JP2000246937A patent/JP3328646B2/en not_active Expired - Fee Related
- 2000-08-16 CN CN00131681A patent/CN1108396C/en not_active Expired - Fee Related
- 2000-08-22 TW TW089117129A patent/TW527426B/en not_active IP Right Cessation
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463996C (en) * | 2004-03-26 | 2009-02-25 | 山特维克知识产权股份有限公司 | Steel alloy for cutting details |
| CN103173693A (en) * | 2011-12-22 | 2013-06-26 | 北京正安广泰新材料科技有限公司 | Novel ultra-high-strength stainless steel |
| CN103239841A (en) * | 2012-02-09 | 2013-08-14 | 住胶体育用品株式会社 | Golf club head |
| CN103239841B (en) * | 2012-02-09 | 2017-12-12 | 住胶体育用品株式会社 | Glof club head and the method for manufacturing glof club head |
| CN106676410A (en) * | 2017-03-02 | 2017-05-17 | 嘉兴博朗金属科技有限公司 | Multi-layer composite stainless steel material and preparation method thereof |
| CN106947922A (en) * | 2017-03-13 | 2017-07-14 | 浙江工贸职业技术学院 | A kind of martensite steel and its structure hardening processing method |
| CN112501492A (en) * | 2019-09-16 | 2021-03-16 | 明安国际企业股份有限公司 | Alloy composition of golf club head |
| CN110760734A (en) * | 2019-12-04 | 2020-02-07 | 海安县鹰球粉末冶金有限公司 | High-density, high-wear-resistance and high-corrosion-resistance stainless steel material and production method thereof |
| CN111304550A (en) * | 2020-03-12 | 2020-06-19 | 艾诺克(成都)机械制造有限公司 | Golf club head-rolling material and preparation method and application thereof |
| CN111424221A (en) * | 2020-03-27 | 2020-07-17 | 嘉兴吉森科技有限公司 | Stainless steel plate for lamination and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3328646B2 (en) | 2002-09-30 |
| KR100329841B1 (en) | 2002-03-25 |
| TW527426B (en) | 2003-04-11 |
| JP2001089832A (en) | 2001-04-03 |
| CN1108396C (en) | 2003-05-14 |
| KR20010017914A (en) | 2001-03-05 |
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