US3871836A - Cutting blades made of or coated with an amorphous metal - Google Patents

Cutting blades made of or coated with an amorphous metal Download PDF

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Publication number
US3871836A
US3871836A US317039A US31703972A US3871836A US 3871836 A US3871836 A US 3871836A US 317039 A US317039 A US 317039A US 31703972 A US31703972 A US 31703972A US 3871836 A US3871836 A US 3871836A
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Prior art keywords
amorphous
metal
atomic percent
amorphous metal
ranges
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Expired - Lifetime
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US317039A
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English (en)
Inventor
Donald E Polk
Robert C Morris
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Allied Corp
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Allied Chemical Corp
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Application filed by Allied Chemical Corp filed Critical Allied Chemical Corp
Priority to US317039A priority Critical patent/US3871836A/en
Priority to GB5453573A priority patent/GB1448856A/en
Priority to SE7316630A priority patent/SE397110B/xx
Priority to CA188,045A priority patent/CA987897A/en
Priority to BE138915A priority patent/BE808687A/xx
Priority to DE2366415A priority patent/DE2366415C2/de
Priority to DE2362895A priority patent/DE2362895A1/de
Priority to IT70734/73A priority patent/IT1000542B/it
Priority to JP14198473A priority patent/JPS5414570B2/ja
Priority to FR7345836A priority patent/FR2211871A5/fr
Priority to US05/544,164 priority patent/US3940293A/en
Application granted granted Critical
Publication of US3871836A publication Critical patent/US3871836A/en
Priority to US05/777,971 priority patent/USRE29989E/en
Priority to US05/879,314 priority patent/USRE30106E/en
Priority to BE0/199381A priority patent/BE881699R/fr
Priority to CA350,322A priority patent/CA1091474B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C22F3/00—Changing the physical structure of non-ferrous metals or alloys by special physical methods, e.g. treatment with neutrons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/54—Razor-blades
    • B26B21/58—Razor-blades characterised by the material
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C45/00—Amorphous alloys
    • C22C45/008—Amorphous alloys with Fe, Co or Ni as the major constituent
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9265—Special properties
    • Y10S428/932—Abrasive or cutting feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12556—Organic component
    • Y10T428/12569—Synthetic resin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12778—Alternative base metals from diverse categories
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
    • Y10T428/12812—Diverse refractory group metal-base components: alternative to or next to each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
    • Y10T428/12826—Group VIB metal-base component
    • Y10T428/12847—Cr-base component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12931—Co-, Fe-, or Ni-base components, alternative to each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12951—Fe-base component
    • Y10T428/12972—Containing 0.01-1.7% carbon [i.e., steel]
    • Y10T428/12979—Containing more than 10% nonferrous elements [e.g., high alloy, stainless]

Definitions

  • ABSTRACT Metal alloys in an amorphous state are employed in the fabrication of cutting implements such as razor blades or knives.
  • the implement may be formed from the amorphous metal or a coating of the amorphous metal may be applied.
  • Such products may be formed from a ribbon of the amorphous metal alloy which has been prepared by quenching the molten metal or by coating the amorphous metal alloy-on a suitable substrate such as by a sputtering procedure or vapor, chemical or electro-deposition of the alloy on the substrate.
  • the properties and hence usefulness of the blade are determined by the form of the edge and by the properties of the substance from which the blade is produced; these properties generally depend upon the processing of the metal as well as upon its chemical composition.
  • amorphous substance generally characterizes a noncrystalline or glassy substance. In distinguishing an amorphous substance from a crystalline substance, diffraction measurements are generally suitably employed.
  • FIG. 1 is the first peak of the diffracted intensity I as a function of the diffraction angle 26 for amorphous Fe Ni P B as obtained from an x-ray diffractometer with MoKa radiation. Such a pattern is typical for amorphous metals.
  • FIG. 2 represents the diffracted intensity I as a function of the diffraction angle 26 for polycrystalline Fe Ni P B over the same range of 20. This more rapidly varying intensity is typical of crystalline materials.
  • amorphous metals are in a metastable state. Upon heating to a sufficiently high temperature, they crystallize with the evolution of a heat of crystallization and the diffraction profile changes from one having the glassy or amorphous characteristics to one having crystalline characteristics.
  • suitably employed transmission electron micrography and electron diffraction can be used to distinguish between the amorphous and the crystalline state.
  • a metal which is a two-phase mixture of the amorphous and the crystalline state; the relative proportions can vary from totally crystalline to totally amorphous.
  • An amorphous metal refers to a metal which is primarily amorphous but may have a small fraction of the material present as included crystallites.
  • a metal in the amorphous state proper processing will produce a metal in the amorphous state.
  • One typical procedure is to cause the molten alloy to be spread thinly in contact with a solid metal substrate such as copper or aluminum so that the molten metal looses its heat to the substrate.
  • cooling rates of the order of 106C/sec are achieved.
  • R. C. Ruhl Mat. Sci. & Eng. 1, 313 (1967) which discusses the dependence of cooling rates upon the conditions of processing the molten metal.
  • Any process which provides a suitably high cooling rate can be used.
  • Illustrative examples of procedures which can be used to make the amorphous metals are the rotating double rolls described by H. S. Chen and C. E. Miller, Rev. Sci. Instrum. 41, 1237 (1970) and the rotating cylinder technique described by R. Pond, Jr. and R. Maddin, Trans. Met. Soc., AIME 245, 2475 (1969).
  • a deposition technique can be used to produce an amorphous metal.
  • Two such techniques are vapor deposition and sputtering.
  • vapor deposition the metal to be deposited is placed in a high vacuum and is heated to a temperature such that its vapor pressure is at least 10 mm Hg; this vapor is then condensed to the solid state on sufficiently cold surfaces exposed to the vapor.
  • sputtering the metal to be deposited and the substrate upon which it is to be deposited are placed in a partial vacuum, usually of the order of 1 mm Hg.
  • a high potential is applied between an electrode and the metal to be deposited, and the gaseous ions created by the high potential strike the surface of the metal with an energy sufficient to cause atoms from the metal to enter the vapor phase; these atoms then condense to the solid state on surfaces exposed to the vapor.
  • vapor deposition and the sputtering techniques are described in detail in Handbook of Thin Film Technology, L. I. Maissel and R. Glang, McGraw Hill, 1970.
  • chemical (electro-less) or electrodeposition of a suitable alloy composition from a solution can also lead to an amorphous alloy.
  • the invention has as its primary object the provision of cutting implements which are composed of, or are coated with, an amorphous metal.
  • a strip or sheet of an amorphous metal with a thickness of about 0.001 to 0.005 inch can be sharpened so as to produce a razor blade.
  • Further treatment such as .the sputtering on of a crystalline or amorphous metal coating orthe application of a fluorocarbon coating may be used to produce the finished blade.
  • amorphous metals are exceptionally well-suited to use for razor blades since compositions with high as-formed hardness, ductility, a high elastic limit and good corrosion resistance can be selected. Additionally, these amorphous metals are more homogeneous than common crystalline materials for the dimensions characteristic of the sharpened edge of a razor blade. Greater hardness and better corrosion resistance than the stainless steel blades now in use can be achieved.
  • Strips from which the blades are made can be obtained by any of various techniques. Mostsuitable is the quenching from the melt of a continuous strip by, for example, using a pair of rotating rolls or by squirting the molten metal onto the outside of a rapidly rotating cylinder.
  • razor blades can be produced which consist of sharpened crystalline metal or amorphous metal blades with an amorphous metal film deposited on top of the edge, for example, by sputtering.
  • a blade can be produced by sharpening after the amorphous metal coating has been applied to a crystalline substrate, by sputtering or vapor deposition, for example.
  • Cutting blades such as common knives can be produced with an amorphous metal coating applied, for example, by sputtering or electro-deposition so as to improve the properties of the surface.
  • Cutting blades other than razor blades can also be produced by sharpening an amorphous metal strip or sheet. Further, a sandwich construction where the amorphous metal is held between two layers of a softer material could be used to make blades.
  • metal alloys which are partially amorphous can sometimes also have the desirable properties of high hardness, high strength, high elastic limit, and ductility which can be obtained with the fully amorphous state.
  • These alloys may be a mixture of the amorphous and crystalline states because of several possible reasons.
  • the composition may be one which for obtainable quench rates or deposition parameters does not give a totally amorphous substance, or a relatively low quench rate may have been employed, or part of the sample may have been recrystallized upon a heat treatment of the sample.
  • a typical x-ray diffraction pattern for such an amorphous-crystalline mixture is shown in FIG. 3. It is a superposition or. summation of an amorphous pattern and a crystalline pattern.
  • Resolving the two patterns and measuring the relative integrated intensities indicates the approximate relative percentages of the two structures. Additionally, transmission electron micrography and diffraction can also be used to estimate the percent of each phase. Further, the measured heat of crystallization will be proportional to the fraction that is amorphous.
  • the articles described above can be made from such an amorphous-crystalline mixture where the crystalline fraction is less than 50%.
  • FIG. 1 illustrates the diffraction intensity of an amorphous F40Nl40P B metal. 7
  • FIG. 2 illustrates the diffracted intensity of the crystalline metal of Fe Ni P B
  • FIG. 3 is an x-ray diffraction pattern for a partially crystalline metal alloy of Ni P B Al DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • an amorphous metal strip can be sharpened to form razor blades of excellent edge characteristics: high resistance to mechanical damage and superior corrosion resistance.
  • an amorphous metal strip which is 0.002 inch thick and about A inch wide can be sharpened on one edge and then cut into lengths of about 1.75 inches. Alternatively, strips of greater width can be sharpened on both edges.
  • Strips of many different alloy compositions can be used for razor blades.
  • the preferred alloys will consist of primarily iron, nickel, cobalt, chromium, vanadium and mixtures thereof.
  • Alloys of particular interest contemplated by the invention are those having the general formula M,,X,, wherein M may be any combination of Ni, Fe, Co, Cr and/or V, X will be elements such as P, B, C, Si, Al, Sb, Sn, In, Ge and/or Be and a and b represent atomic percent in which a will generally range from 90 to 65 atomic percent and b will range from 10 to 35 atomic percent.
  • a will vary from about 84 to about 73 atomic percent while b will vary from about 16 to about 27 atomic percent.
  • An alternate embodiment of the invention resides in coating a metal substrate with an amorphous metal layer such as by the sputtering of a thin film (about 50 to 300A. thick) of metal which is at least 50% amorphous onto the edge of an already sharpened amorphous or crystalline razor blade.
  • the general compositions of such coating alloys are essentially those listed above in connection with the amorphous strips.
  • Preferred coating compositions are, for example, s0 i5 5; 20 60 20; fis m is m and n ia s s-
  • Still another embodiment resides in the deposition of an amorphous coating of the general compositions listed above on various articles of cutlery.
  • a composition such as Ni P can be electro-deposited onto a formed utensil such as a knife or instead a composition such as Cr Ni P B can be sputtered thereon.
  • the edge of the ribbon is sheared off so as to provide a straight edge and a cutting edge is ground and honed on the sheared edge of the strip in a manner conventionally used to sharpen razor blades.
  • care is taken such that any part of the metal strip does not reach a temperature above 340C.
  • the strips are cut to the desired length for individual blades.
  • the blade may be suitably employed at this juncture.
  • the blade may be further processed after sharpening such as by the deposition of an amor phous or crystalline metal film of about A. on the cutting edge.
  • This coating may be applied by sputtering or vapor deposition, as described in the aforementioned Maissel and Glang text.
  • a fluorocarbon coating may also be applied such as disclosed in US. Pat. No. 3,071,856 care again being taken to avoid excess temperature which would cause crystallization of the amorphous metal.
  • EXAMPLE 2 ness of 200 A. on the edge of the blade.
  • a fluorocarbon coating in the manner disclosed in Example 3 of US. Pat. No. 3,071,856 is applied to the blade.
  • a cutting implement comprising a metal which is at least 50% amorphous, characterized in that the metal has the composition M,,X,,, where M is at least one element selected from the group consisting of Ni, Fe, Co, Cr and V, X is at least one element selected from the group consisting of P, B, C, Si, Al. Sb. Sn, In. Ge and Be, a ranges from 65 atomic percent to atomic percent and b ranges from 10 atomic percent to 35 atomic percent.
  • the cutting implement of claim 1 in the form of a razor blade.
  • a ranges from 65 atomic percent to' 90 atomic percent and b ranges from l0 atomic percent to 35 atomic percent.
  • the cutting implement of claim 4 in the form of a razor blade.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Forests & Forestry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Vapour Deposition (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Continuous Casting (AREA)
  • Knives (AREA)
  • Dry Shavers And Clippers (AREA)
  • Soft Magnetic Materials (AREA)
  • Laminated Bodies (AREA)
US317039A 1972-12-20 1972-12-20 Cutting blades made of or coated with an amorphous metal Expired - Lifetime US3871836A (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
US317039A US3871836A (en) 1972-12-20 1972-12-20 Cutting blades made of or coated with an amorphous metal
GB5453573A GB1448856A (en) 1972-12-20 1973-11-23 Amorphous metal articles
SE7316630A SE397110B (sv) 1972-12-20 1973-12-10 Amorft skerverktyg samt sett att framstella detsamma
CA188,045A CA987897A (en) 1972-12-20 1973-12-12 Cutting blades made of or coated with an amorphous metal
BE138915A BE808687A (fr) 1972-12-20 1973-12-14 Lames tranchantes constituees a partir d'un metal a l'etat amorphe ou revetues de celui-ci
DE2362895A DE2362895A1 (de) 1972-12-20 1973-12-18 Schneidwerkzeug und verfahren zu dessen herstellung
IT70734/73A IT1000542B (it) 1972-12-20 1973-12-18 Lame da taglio costituite oppure rivestite con un metallo amorfo
DE2366415A DE2366415C2 (de) 1972-12-20 1973-12-18 Schneidwerkzeug
JP14198473A JPS5414570B2 (sh) 1972-12-20 1973-12-20
FR7345836A FR2211871A5 (sh) 1972-12-20 1973-12-20
US05/544,164 US3940293A (en) 1972-12-20 1975-01-27 Method of producing amorphous cutting blades
US05/777,971 USRE29989E (en) 1972-12-20 1977-03-15 Cutting blades made of or coated with an amorphous metal
US05/879,314 USRE30106E (en) 1972-12-20 1978-02-21 Method of producing amorphous cutting blades
BE0/199381A BE881699R (fr) 1972-12-20 1980-02-13 Lames tranchantes constituees a partir d'un metal a l'etat amorphe ou revetues de celui-ci
CA350,322A CA1091474B (en) 1972-12-20 1980-04-22 Cutting blades made of or coated with an amorphous metal

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Application Number Priority Date Filing Date Title
US317039A US3871836A (en) 1972-12-20 1972-12-20 Cutting blades made of or coated with an amorphous metal

Related Child Applications (3)

Application Number Title Priority Date Filing Date
US05/544,164 Division US3940293A (en) 1972-12-20 1975-01-27 Method of producing amorphous cutting blades
US05/777,971 Reissue USRE29989E (en) 1972-12-20 1977-03-15 Cutting blades made of or coated with an amorphous metal
US05/879,314 Division USRE30106E (en) 1972-12-20 1978-02-21 Method of producing amorphous cutting blades

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US3871836A true US3871836A (en) 1975-03-18

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US317039A Expired - Lifetime US3871836A (en) 1972-12-20 1972-12-20 Cutting blades made of or coated with an amorphous metal
US05/777,971 Expired - Lifetime USRE29989E (en) 1972-12-20 1977-03-15 Cutting blades made of or coated with an amorphous metal

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US05/777,971 Expired - Lifetime USRE29989E (en) 1972-12-20 1977-03-15 Cutting blades made of or coated with an amorphous metal

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US (2) US3871836A (sh)
JP (1) JPS5414570B2 (sh)
BE (2) BE808687A (sh)
CA (2) CA987897A (sh)
DE (2) DE2366415C2 (sh)
FR (1) FR2211871A5 (sh)
GB (1) GB1448856A (sh)
IT (1) IT1000542B (sh)
SE (1) SE397110B (sh)

Cited By (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986867A (en) * 1974-01-12 1976-10-19 The Research Institute For Iron, Steel And Other Metals Of The Tohoku University Iron-chromium series amorphous alloys
DE2628362A1 (de) * 1975-06-26 1977-01-13 Allied Chem Amorphe metallegierung
USRE29239E (en) * 1974-01-07 1977-05-31 Whyco Chromium Company Inc. Ternary alloys
US4036638A (en) * 1975-11-13 1977-07-19 Allied Chemical Corporation Binary amorphous alloys of iron or cobalt and boron
US4038073A (en) * 1976-03-01 1977-07-26 Allied Chemical Corporation Near-zero magnetostrictive glassy metal alloys with high saturation induction
US4052201A (en) * 1975-06-26 1977-10-04 Allied Chemical Corporation Amorphous alloys with improved resistance to embrittlement upon heat treatment
US4067732A (en) * 1975-06-26 1978-01-10 Allied Chemical Corporation Amorphous alloys which include iron group elements and boron
US4113478A (en) * 1977-08-09 1978-09-12 Allied Chemical Corporation Zirconium alloys containing transition metal elements
US4116682A (en) * 1976-12-27 1978-09-26 Polk Donald E Amorphous metal alloys and products thereof
US4122240A (en) * 1976-02-17 1978-10-24 United Technologies Corporation Skin melting
US4133679A (en) * 1978-01-03 1979-01-09 Allied Chemical Corporation Iron-refractory metal-boron glassy alloys
US4133681A (en) * 1978-01-03 1979-01-09 Allied Chemical Corporation Nickel-refractory metal-boron glassy alloys
US4133682A (en) * 1978-01-03 1979-01-09 Allied Chemical Corporation Cobalt-refractory metal-boron glassy alloys
US4134779A (en) * 1977-06-21 1979-01-16 Allied Chemical Corporation Iron-boron solid solution alloys having high saturation magnetization
US4135924A (en) * 1977-08-09 1979-01-23 Allied Chemical Corporation Filaments of zirconium-copper glassy alloys containing transition metal elements
US4137075A (en) * 1977-01-17 1979-01-30 Allied Chemical Corporation Metallic glasses with a combination of high crystallization temperatures and high hardness values
US4140525A (en) * 1978-01-03 1979-02-20 Allied Chemical Corporation Ultra-high strength glassy alloys
US4144058A (en) * 1974-09-12 1979-03-13 Allied Chemical Corporation Amorphous metal alloys composed of iron, nickel, phosphorus, boron and, optionally carbon
US4148973A (en) * 1976-12-15 1979-04-10 Allied Chemical Corporation Homogeneous, ductile brazing foils
US4152144A (en) * 1976-12-29 1979-05-01 Allied Chemical Corporation Metallic glasses having a combination of high permeability, low magnetostriction, low ac core loss and high thermal stability
US4152147A (en) * 1978-04-10 1979-05-01 Allied Chemical Corporation Beryllium-containing iron-boron glassy magnetic alloys
US4152146A (en) * 1976-12-29 1979-05-01 Allied Chemical Corporation Glass-forming alloys with improved filament strength
US4171992A (en) * 1977-08-09 1979-10-23 Allied Chemical Corporation Preparation of zirconium alloys containing transition metal elements
US4188211A (en) * 1977-02-18 1980-02-12 Tdk Electronics Company, Limited Thermally stable amorphous magnetic alloy
US4209570A (en) * 1978-10-02 1980-06-24 Allied Chemical Corporation Homogeneous brazing foils of copper based metallic glasses
US4221592A (en) * 1977-09-02 1980-09-09 Allied Chemical Corporation Glassy alloys which include iron group elements and boron
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US11987889B2 (en) 2019-04-12 2024-05-21 Kondex Corporation Boring bit component with hard face wear resistance material with subsequent heat treatment
US11525313B2 (en) 2019-11-25 2022-12-13 Kondex Corporation Wear enhancement of HDD drill string components
US11808088B2 (en) 2020-07-21 2023-11-07 Kondex Corporation Enhanced drill bit profile for use in HDD

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BE881699R (fr) 1980-05-30
CA987897A (en) 1976-04-27
SE397110B (sv) 1977-10-17
DE2366415C2 (de) 1985-02-28
CA1091474B (en) 1980-12-16
JPS49101235A (sh) 1974-09-25
DE2362895C2 (sh) 1987-04-09
JPS5414570B2 (sh) 1979-06-08
DE2362895A1 (de) 1974-07-04
FR2211871A5 (sh) 1974-07-19
IT1000542B (it) 1976-04-10
USRE29989E (en) 1979-05-08
GB1448856A (en) 1976-09-08
BE808687A (fr) 1974-03-29

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