CN104136639A - Titanium alloy for use in golf-club face - Google Patents
Titanium alloy for use in golf-club face Download PDFInfo
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- CN104136639A CN104136639A CN201280070564.1A CN201280070564A CN104136639A CN 104136639 A CN104136639 A CN 104136639A CN 201280070564 A CN201280070564 A CN 201280070564A CN 104136639 A CN104136639 A CN 104136639A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0466—Heads wood-type
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/047—Heads iron-type
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0416—Heads having an impact surface provided by a face insert
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Abstract
Provided is an alpha-beta titanium alloy, with a high Young's modulus and a good balance between strength and ductility, for use in the face of a golf club such as a driver or an iron. Said alloy is characterized by: containing, by mass, 4.7-5.5% aluminum, 0.5-1.4% iron, at most 0.03% nitrogen, and an amount of oxygen such that the [O]eq (oxygen equivalent) calculated according to formula (1) is 0.25-0.34%, with the remainder comprising titanium and impurities; and high strength and a high Young's modulus. Aluminum, oxygen, and nitrogen are added for solid-solution strengthening of the alpha phase, inexpensive iron was chosen as the beta-stabilizing element, and the amounts of said added elements are limited appropriately, resulting in both high strength and a high Young's modulus that complies with the limitation on coefficient of restitution, without relying on cold-working strengthening or an aging-strengthening heat treatment, and producing a good, high breaking elongation and a good balance between strength and ductility. (1) [O]eq = [O] + 2.77[N] (Formula I)
Description
Technical field
Titanium alloy that blank was used for the pole face that the present invention relates to take driver (driver) and be main golf club.
Background technology
In recent years, be accompanied by golf club and can not there is this rebound coefficient regulation of spring effect (Spring Like Effect=SLE) (SLE rule) and be imported into, for the kind of the titanium alloy blank of Golf club face purposes, greatly change.Before carrying out rebound coefficient (recovery factor) regulation, low Young's modulus (Young ' s modulus), can easily obtain high ballistic properties, high strength and excellent in te pins of durability, the Ti-15%V-3%Cr-3%Sn-3%Al alloy of take is that main beta titanium alloy is main flow.But, be accompanied by the importing of rebound coefficient regulation, in order to use the beta titanium alloy of low Young's modulus, and reduce rebound coefficient and meet regulation, only thicken the method that pole face thickness of slab improves the rigidity of pole face.When using the method, in the situation that the beta titanium alloy of alloying element that contains in a large number the high price of V, Mo etc. is applied to pole face blank, cost improves and can not avoid.And beta titanium alloy, compares with other titanium alloy, proportion is also large, is accompanied by and thickens thickness of slab, and it is heavy that pole face becomes.So, pole face is used the volume of the golf club head of beta titanium alloy to be limited, and the sweet spot while impacting ball (sweet-spot) relatively diminishes, and therefore also has unworkable for the user problem.Due to such reason, beta titanium alloy starts to become and is not the main flow of blank for Golf club face.
Compare with beta titanium alloy, the alpha and beta type titan alloy that Young's modulus is high, is just becoming main flow as driver pole face now with blank.By using the high alpha and beta type titan alloy of Young's modulus, even attenuate pole face, rebound coefficient is also difficult to uprise, and compares, by the thickness of slab degree of freedom raising of (meeting) rebound coefficient regulation with beta titanium alloy.In addition, compare with beta titanium alloy, proportion is little, even identical quality also can increase the capacity of club head.And with β type alloy phase ratio, the content of the alloying element of high price is low, so blank cost is also low, there is above-mentioned these a lot of advantage.As this alpha and beta type titan alloy, Ti-6%Al-4%V is representational alloy, but in addition, also can use such as Ti-5%Al-1%Fe, Ti-4.5%Al-3%V-2%Fe-2%Mo, Ti-4.5%Al-2%Mo-1.6%V-0.5%Fe-0.3%Si-0.03%C, Ti-6%Al-6%V-2%Sn, Ti-6%Al-2%Sn-4%Zr-6%Mo, Ti-8%Al-1%Mo-1%V, Ti-6%Al-1%Fe etc.
If use these alloys, even if make face thickness thinner than beta titanium alloy pole face processed, also meet rebound coefficient regulation, and by using the titanium alloy of suitable strength-ductility scope, also can give needed weather resistance to Golf club face.Even if attenuate face thickness also requires in the situation of senior golf club of high-durability, change pole face shape and/or structure can be controlled the pole goods of ballistic properties etc., preferably have more than 120GPa Young's modulus, tensile strength more than 950MPa, more than 15% elongation at break.At pole face, be shaped and add the few sheet products of degree of finish in man-hour etc., a preferential direction in plate face has Young's modulus, tensile strength more than 1100MPa, more than 7% elongation at break more than 135GPa.In these cases, about Young's modulus, in order to pass through rebound coefficient regulation, and, about tensile strength and ductility, in order to obtain good weather resistance, preferentially meet above-mentioned value.But, usually, type alpha+beta alloy, processibility is not good, limited even if attenuate thickness of slab also has high-durability and meets the type alpha+beta alloy that high strength, high Young's modulus and the good hot workability of rebound coefficient regulation have both.
For example, as the Ti-6%Al-4%V alloy of the most general type alpha+beta alloy, as pole face blank, there is sufficient intensity, Young's modulus, as Golf club face, with alloy, be widely used.But,, there is the bad problem of hot workability, in addition in the Al that this alloy contains 6% the solution strengthening ability that at high temperature shows, the resistance to deformation while making hot-work increases,, there is the problem that blank cost compare is high in the β phase stabilizing element V that contains 4% high price.
Patent documentation 1 has proposed a kind of and Ti-6%Al-4%V alloy and has similarly had high specific tenacity and alloy cheaply.This alloy is by being the Fe cheap, β stabilization ability is high as β stabilizing element by the high price of V and Mo etc., than heavy element substitution, and the α phase stabilizing element Al that more adds light specific gravity, seek high specific strength and type alpha+beta alloy cheaply.But this alloy contains 5.5～7% Al, have and be difficult to hot worked difficult point.Particularly will reduce the tooling cost towards pole face blank, wish that the slab products only just can be processed into pole face shape by light press forming and grinding step is supplied with, but this alloy is due to high thermal distortion resistance, being difficult to appearance becomes slab products.Particularly, when hot rolling, the suitable hot-rolled temperature scope of this alloy is narrow, if temperature, than its slight reduction, raw edges just easily occurs, has the problem that product qualified rate is low.
A kind of golf club head of protecting high strength and low bounce-back titanium alloy pole face has been proposed in patent documentation 2.In forming the titanium alloy of pole face, stipulated the content of Al and Fe, obtain thus high Young's modulus and tensile strength.In patent documentation 2, do not record the concrete manufacture method of this alloy, but the tensile strength that will obtain 1200～1600MPa that claim records under the alloy composition that contains inevitable impurity in Al and Fe shown in claims, manufacture method is considerably defined.That is, the alloy of the hot-work state of hot rolling, forging etc. or adopt carries out the alloy that the method for anneal obtains after hot-work or cold working, can not obtain such intensity.And then heat or cold working product are being carried out can not obtaining in aging heat treatment situation the goods of this strength range.Unique in the situation that cold working has the possibility obtaining to very high working modulus.But in this case, though can obtain high strength, plasticity and toughness significantly reduce.In the golf club of pole face that uses such state, if once fatigue cracking occurs pole face, can not suppress its expansion.Like this, existence can not be guaranteed the problem to the desired high-durability of Golf club face recently.
In addition, in patent documentation 3, proposed a kind of in comprising the golf club head of welding zone high, the pole face titanium alloy that can adjust Young's modulus and intensity by thermal treatment of the weather resistance of heat affected zone.It is characterized in that: by appropriate interpolation Al, Fe, O, N, adjust intensity and the fatigue characteristic of heat affected zone are improved, and control Young's modulus by controlling the heat-treat condition of ageing strengthening thermal treatment etc.But, at patent documentation 3, propose after patent application, rebound coefficient regulation (SLE rule) is implemented, a high alloy of demand Young's modulus becomes, under the alloy composition and heat-treat condition of recording, there is the problem of the situation of the high Young's modulus that also has the rebound coefficient regulation that is not being met in claims of patent documentation 3.
Technical literature formerly
Patent documentation
Patent documentation 1: JP 2004-10963 communique
Patent documentation 2: JP 2006-212092 communique
Patent documentation 3: JP 2005-220388 communique
Patent documentation 4: JP 2008-106317 communique
Patent documentation 5: JP 2008-133531 communique
Summary of the invention
The object of the invention is, solve above-mentioned problem, provide and there is high Young's modulus and strength-ductility balanced alpha and beta type titan alloy.
Contriver finds: when passing through to add Al, O, the N of solution strengthening α phase, and select cheap Fe as β stabilizing element, and suitably limit the addition of these elements, while making the β phase fraction reduction under room temperature, do not rely on the high Young's modulus that cold-work strengthening or ageing strengthening thermal treatment just can be had both high intensity and meet rebound coefficient regulation.Find, elongation at break is also good widely simultaneously, shows high strength-ductility balancedly, obtains high weather resistance.In addition, this type alpha+beta alloy, proportion is also light, is the blank that is suitable for Golf club face purposes most.And, and take Ti-6%Al-4%V alloy and be the type alpha+beta alloy phase ratio of main other, the content of the Al that hot workability is reduced is restricted to lower, so rolling load during hot rolling is low, is difficult to occur scar and raw edges during hot rolling.Therefore, there is following advantage: good towards the manufacturing of goods of all shapes that comprises thin plate.
The present invention completes based on above-mentioned opinion, using following content as main points.
A kind of Golf club face titanium alloy, it is characterized in that, in quality %, comprise 4.7～5.5% Al, 0.5～1.4% Fe, the N below 0.03% and [O] eq (oxygen equivalent) being calculated by formula (1) and meet 0.25～0.34% O, surplus comprises Ti and inevitable impurity; There is high strength, high Young's modulus.
[O] eq=[O]+2.77[N] formula (1)
At this, [O] is oxygen concn (quality %), and [N] is nitrogen concentration (quality %).
According to the present invention, can provide to there is the Golf club face alpha and beta type titan alloy that high strength-ductility balanced and Young's modulus is feature.
Embodiment
The inventor is the result of the impact that probe composition element and manufacture method cause the material characteristic of titanium alloy in order to solve above-mentioned problem, find: by controlling Fe, Al, O, N addition, even if can manufacture, possess the desired high strength-ductility balanced and high Young's modulus of blank for senior Golf club face that thin-walled property is also required to high-durability, and there is the alpha and beta type titan alloy of good hot workability.Particularly find: by solid solution is there is to the O of effect and the addition of N of strengthening in α phase, by [O] eq formula regulation, be suitable scope, can not reduce ductility and guarantee as the desired high intensity of high-end Golf club face and Young's modulus.And then, take Al as alloy of the present invention main, that interpolation O, N carry out complex intensifying α phase, in the situation that manufacturing slab products, by unidirectional hot rolling or cold rolling, cause the anisotropic texture of material significantly flourishing, produce the Young's modulus of plate width and the material anisotropy of strength ratio rolling direction increase as the direction vertical with rolling direction.
In Golf club face, if Young's modulus and tensile strength are abundant in longitudinal realize target value of Golf club face.Therefore at least one direction, needing only at plate realizes Young's modulus and tensile strength.And, in sheet products, by carrying out unidirection rolling, for rolling width direction, can realize target about Young's modulus and tensile strength.That is,, if by the above-mentioned plate width of being longitudinally taken as of Golf club face, can access needed high Young's modulus and the tensile strength in a direction (Golf club face longitudinally) of Golf club face.
The present invention is that the opinion based on above completes.The reason of selecting various interpolation elements shown in the present and the reason that limits its addition scope are below shown.
Fe is interpolation element cheap among β phase stabilizing element, has the effect of strengthening β phase.And, because β stabilization ability is high, also can be by the characteristic of β phase stabilization even therefore there is lower addition.Obtain, as the needed intensity of Golf club face, need to adding more than 0.5% Fe.On the other hand, Fe is easy solidifying segregation in Ti, in addition, if add in large quantities, increase with the volume fraction of the low β phase of α phase phase specific Young's modulus, so the Young's modulus of block (bulk) reduces, the Young's modulus of pole goods becomes lower than 120GPa, in a direction in plate face of sheet products, Young's modulus becomes lower than 135GPa, as Golf club face, by rebound coefficient regulation, becomes difficult.Consider these impacts, the upper limit of the addition of Fe is made as to 1.4%.Moreover, for when paying attention to strength characteristics, by Young's modulus, reduce caused rebound coefficient regulation effectively, as the lower limit of Fe addition be preferably 0.7%, the upper limit is preferably 1.2%.
Al is the stabilizing element of titanium α phase, is to have high solution strengthening ability and cheap interpolation element.For by the compound interpolation with O described later, N, obtain as senior Golf club face can guarantee weather resistance essential strength level, be that pole goods tensile strength is that 950MPa is above, tensile strength is more than 1100MPa in the direction of sheet products in plate face, and the lower limit of addition is made as to 4.7%.On the other hand, if surpass 5.5% ground, add Al, resistance to deformation too uprises, and ductility reduces, and as Golf club face, in weather resistance, can not reach essential ductility, and, because thermal distortion resistance increases the reduction that causes hot workability.Therefore, the addition of Al need to be made as below 5.5%.
O and N, in the intermediate gap solid solution of α phase, have the effect of solution strengthening α phase at the temperature of near room temperature.By the compound interpolation with Al, can reach high strength and high Young's modulus.They are different from Al on the other hand, do not make thermal distortion resistance increase, and therefore, by adding O, N, can suppress Al addition.As recorded in patent documentation 3～5, the similarity of strengthening mechanism Ti being caused from O and N, O and N can be represented by [O] eq mono-free burial ground for the destitute shown in above-mentioned formula (1) the effect of the intensity under room temperature.When adding [O] eq lower than 0.25% O, N, can not stably obtain: as senior Golf club face show sufficient weather resistance, pole goods tensile strength is that 950MPa is above, tensile strength is intensity more than 1100MPa in the direction of sheet products in plate face.In addition, when adding [O] eq and surpass O, the N of 0.34% scope, intensity too uprises, and ductility reduces, and in a direction in the plate face of sheet products, elongation at break can not guarantee 7%.Therefore the lower limit of [O] eq, being represented by formula (1) is made as 0.25%, the upper limit is made as 0.34%.
The in the situation that of slab products, the unidirectional heat stocking of titanium alloy within the scope of the chemical composition of finding to stipulate in the present invention or the Young's modulus E of the plate width of cold rolling material, proportional and increase according to formula (2) and [O] eq the scope of above-mentioned [O] eq in.This is because by the increase of α phase stabilizing element, the cause that the β that Young's modulus is reduced reduces mutually.By the scope at [O] of the present invention eq, add O, N, the Young's modulus of plate width can access the value of 140GPa left and right.
E=41.2[O] eq+130.2 formula (2)
About N addition, when adopting the usual method of the titanium sponge of using the N that contains high density to add the N that surpasses 0.030%, easily generate and be called as LDI (low density inclusion: not molten inclusion Low density Inclusion), the qualification rate step-down of goods, therefore using 0.030% as the upper limit.
Pole and slab etc. add man-hour with larger degree of finish to the shaping of pole face shape, by controlling pole face shape, rebound coefficient can be suppressed in lower situation, by thering is mentioned component scope, can access the Golf club face with excellent characteristic.The titanium alloy of the present invention with mentioned component scope, also possesses better workability, is therefore suitable as pole face blank.
On the other hand, only carry out slight processing being manufactured in the shaping processing of pole face shape, by pole face shape, rebound coefficient is suppressed in the situation for the few sheet products in lower leeway, the texture that is called as Transverse-texture (laterally texture) if make is flourishing, the tensile strength of plate width and Young's modulus uprise, and as Golf club face blank, are preferred.If Al, Fe, O are limited in to composition range of the present invention, and be heated to β single phase region or beta transformation point slightly the alpha+beta 2 phase region temperature of below carry out unidirectional hot rolling or and then in the direction identical with hot rolling direction, carry out unidirectionally under common used suitable condition, annealing after cold rolling, Transverse-texture is easily flourishing, intensity and the Young's modulus of plate width uprise, and therefore can manufacture the sheet products with blank most suitable as pole face.
While manufacturing this sheet bar, from hot rolling or cold rolling beginning to end, the reason being only rolled in one direction is consistently in order to obtain expeditiously the Transverse-texture of the high Young's modulus that can obtain the plate width that the present invention accompanies as target, with material anisotropy.Like this, by the plate width with high Young's modulus and strength-ductility balanced this titanium-alloy thin-plate being configured to the longitudinally or with it approaching direction of Golf club face, can manufacturing corresponding with rebound coefficient regulation and possess the pole face of high weather resistance.
Embodiment
< embodiment 1 >
Adopt the melting of vacuum arc melting method to there is the titanium material of the composition shown in table 1, it is carried out to heat forged, be made for the base of diameter 100mm.This base is heated to after 950 ℃, by hot rolling, has manufactured the pole of Ф 18mm.This pole is carried out, after 800 ℃, the annealing of 2h, producing the JIS14 tensile test specimen of mean diameter 6mm, investigated tensile properties.In addition, utilize laser three-D roughmeter, as the degree of depth of starting at from the surface of hot rolling scar peristome, measured hot rolling scar the degree of depth (zero: maximum scar degree of depth < 0.5mm, *: the maximum scar degree of depth >=0.5mm).For the Golf club face as senior obtains good weather resistance with pole blank, it is more than 950MPa left and right needing tensile strength and elongation at break is more than 15%.In addition, it is more than 120GPa needing Young's modulus.The result of these mensuration is also shown in Table 1 in the lump.
Table 1
Zero: maximum scar degree of depth < 0.5mm
*: the maximum scar degree of depth >=0.5mm
In table 1, test number 1,2 is respectively the result of Ti-6%Al-4%V alloy, Ti-7%Al-1%Fe.Test number 1,2, is all that tensile strength (TS) has surpassed this target value of 950MPa, but has produced the hot rolling scar of the degree of depth more than 0.5mm, hot workability is poor.
On the other hand, test number 4,5,8,9,12,13,15,16,18,19,20 as embodiments of the invention, demonstrate high tensile strength (TS) more than 950MPa and surpass 15% high elongation at break (EL), can manufacture the pole face with excellent weather resistance.
On the other hand, test number 3,7,11, tensile strength is below 950MPa, as pole face, with blank, does not have sufficient intensity.Reason is: by the order of test number 3,7,11, Al, Fe, [O] eq measure lower than lower value of the present invention respectively, so solution strengthening ability is insufficient, tensile strength step-down.
Test number 6,14, elongation at break, lower than 15%, does not have sufficient plasticity and toughness, can not give high weather resistance.Reason is: the addition of the Al of test number 6 surpasses higher limit of the present invention and adds, and [O] eq of test number 14 surpasses the upper limit, and therefore intensity too improves respectively, and ductility reduces.In addition, test number 17, N surpasses the upper limit of the present invention and adds, and confirms LDI and occurs, and has therefore interrupted test.
Among above-mentioned,, more there is the surface imperfection over the degree of depth of 0.5mm in test number 6,17 after hot rolling.This be because: test number 6, make the Al that hot workability reduces surpass the upper limit of the present invention and add, there is hot rolling scar; In addition,, there is LDI because containing excessive N in test number 17, and the LDI of near surface is recognized by knowledge as defect.
Test number 10, Fe amount is too high, and Young's modulus is lower than 120GPa.
From above result, there is the titanium alloy of the constituent content of stipulating in the present invention, tensile strength and elongation at break are high, as Golf club face, with blank, have excellent material characteristic, and have good hot workability.On the other hand, during the alloying element amount stipulated in departing from the present invention, hot workability reduces, and can not meet tensile strength and these essential material characteristics of ductility.
< embodiment 2 >
The titanium material of the chemical constitution shown in the test number 5,9,12 of employing vacuum arc melting method melting table 1, carries out heat forged to it, is made for the slab of thickness 180mm.Condition shown in this slab employing table 2 is carried out to hot rolling in one direction, manufactured the hot-rolled sheet of thickness 4mm.When this hot-rolled sheet having been carried out to carry out pickling after shot peening and has removed oxidation firecoat, with hydrobarometer, measure the injurious surface mark degree of depth, evaluated hot workability (zero: maximum scar degree of depth < 0.3mm, *: the maximum scar degree of depth >=0.3mm).The result of result now and investigation tensile properties is also shown in Table 2 in the lump.
Table 2
The scoring of hot rolling scar
Zero: maximum scar degree of depth < 0.3mm
*: the maximum scar degree of depth >=0.3mm
Table 2 is respectively the result of the slab products of the chemical constitution shown in the test number 5,9,12 of table 1.Wherein, the plate that the condition of employing table 2 produces, all meet fully tensile strength (more than 1100MPa) and Young's modulus (more than 135GPa) for the needed plate width of sheet products of Golf club face, and, the elongation at break of plate width has also been guaranteed more than 7%, the Golf club face that uses these sheet materials to manufacture, has both and is suitable for the characteristic of rebound coefficient regulation and good weather resistance.In addition, hot rolling acid-cleaning plate does not have to produce the surface imperfection of the degree of depth that surpasses 0.3mm, demonstrates good high-temperature ductility.Therefore, these light sheets are suitable as Golf club face blank.
Particularly test number 21,23,24,26,28,29,31,33,34, on plate width, there is high Young's modulus more than 142GPa, and, in the situation that compare with the alloy of identical chemical constitution, compare with test number 22,25,27,30,32,35, tensile strength uprises, and for rebound coefficient, regulation has excellent performance, and has good weather resistance.This be because: test number 22, 25, 27, 30, 32, 35, Heating temperature before hot rolling is the lower temperature of alpha+beta 2 phase regions, therefore be heated to β single phase region, or beta transformation point slightly the situation of alpha+beta 2 phase temperature of below compare, the prosperity of Transverse-texture is less, it is large that material anisotropy does not become, and test number 23, 24, 28, 29, 33, 34, by being heated to β single phase region, carry out hot rolling, Transverse-texture is flourishing especially, it is large that material anisotropy in plate face becomes, on plate width, all compared with highland, high Young's modulus and tensile strength have been obtained.
From above result, as Golf club face plate blank material, possesses excellent characteristic, therefore, in order to there is high Young's modulus, tensile strength and ductility on plate width, by unidirection rolling, have composition range shown in the present interpolation element titanium alloy and can manufacture above-mentioned plate blank material.
In industry, utilize possibility
Titanium alloy of the present invention, when for pole goods, can access Young's modulus more than 120GPa, tensile strength more than 950MPa, more than 15% elongation at break, when being sheet products, in a direction in plate face, can access Young's modulus, tensile strength more than 1100MPa, more than 7% elongation at break more than 135GPa, its result, can provide and in the situation that being processed into Golf club face, meet rebound coefficient regulation and there is excellent weather resistance, be suitable for the material of senior Golf club face purposes.
Claims (1)
1. a Golf club face titanium alloy, it is characterized in that, in quality %, comprise 4.7～5.5% Al, 0.5～1.4% Fe, the N below 0.03% and oxygen equivalent [O] eq being calculated by formula (1) and meet 0.25～0.34% O, surplus comprises Ti and inevitable impurity; There is high strength, high Young's modulus,
[O] eq=[O]+2.77[N] formula (1),
At this, [O] is oxygen concn, and [N] is nitrogen concentration, and both units are quality %.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2012/054626 WO2013125039A1 (en) | 2012-02-24 | 2012-02-24 | Titanium alloy for use in golf-club face |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104136639A true CN104136639A (en) | 2014-11-05 |
| CN104136639B CN104136639B (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280070564.1A Active CN104136639B (en) | 2012-02-24 | 2012-02-24 | Golf club face titanium alloy |
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| US (1) | US20150064055A1 (en) |
| CN (1) | CN104136639B (en) |
| WO (1) | WO2013125039A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818408A (en) * | 2015-05-20 | 2015-08-05 | 南京工业大学 | High-strength Ti-Al-Fe-Si alloy and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10258837B2 (en) | 2014-02-18 | 2019-04-16 | Karsten Manufacturing Corporation | Method of forming golf club head assembly |
| US10537770B2 (en) | 2015-12-27 | 2020-01-21 | Karsten Manufacturing Corporation | Golf club heads with stronger, more flexible, and lighter materials |
| CN108939473B (en) * | 2017-05-23 | 2021-04-30 | 复盛应用科技股份有限公司 | Method for manufacturing golf club head |
| CN109234567A (en) * | 2017-07-10 | 2019-01-18 | 复盛应用科技股份有限公司 | Golf club alloy and the method that glof club head is manufactured with the alloy |
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| JP2005220388A (en) * | 2004-02-04 | 2005-08-18 | Nippon Steel Corp | Titanium alloy for golf club head having weld zone, and method for manufacturing golf club head made of titanium |
| CN1814331A (en) * | 2005-02-01 | 2006-08-09 | 住胶体育用品株式会社 | Golf club head and method manufacturing the same |
| CN101899590A (en) * | 2010-07-29 | 2010-12-01 | 江苏佳哲钛合金材料科技有限公司 | Titanium-aluminum-iron alloy |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3306878B2 (en) * | 1991-06-04 | 2002-07-24 | 大同特殊鋼株式会社 | α + β type Ti alloy |
| JP3076696B2 (en) * | 1993-08-30 | 2000-08-14 | 新日本製鐵株式会社 | α + β type titanium alloy |
| JP3052746B2 (en) * | 1994-09-06 | 2000-06-19 | 日本鋼管株式会社 | High strength and high ductility titanium alloy |
-
2012
- 2012-02-24 WO PCT/JP2012/054626 patent/WO2013125039A1/en active Application Filing
- 2012-02-24 CN CN201280070564.1A patent/CN104136639B/en active Active
- 2012-02-24 US US14/380,386 patent/US20150064055A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08295969A (en) * | 1995-04-28 | 1996-11-12 | Nippon Steel Corp | High strength titanium alloy suitable for superplastic forming and production of alloy sheet thereof |
| JP2004010963A (en) * | 2002-06-06 | 2004-01-15 | Daido Steel Co Ltd | HIGH STRENGTH Ti ALLOY AND ITS PRODUCTION METHOD |
| JP2005220388A (en) * | 2004-02-04 | 2005-08-18 | Nippon Steel Corp | Titanium alloy for golf club head having weld zone, and method for manufacturing golf club head made of titanium |
| CN1814331A (en) * | 2005-02-01 | 2006-08-09 | 住胶体育用品株式会社 | Golf club head and method manufacturing the same |
| CN101899590A (en) * | 2010-07-29 | 2010-12-01 | 江苏佳哲钛合金材料科技有限公司 | Titanium-aluminum-iron alloy |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818408A (en) * | 2015-05-20 | 2015-08-05 | 南京工业大学 | High-strength Ti-Al-Fe-Si alloy and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013125039A1 (en) | 2013-08-29 |
| US20150064055A1 (en) | 2015-03-05 |
| CN104136639B (en) | 2016-11-23 |
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