The methods for commercial scale production of ultra high strength and high fracture toughness maraging steel having composition as Ni-18%, Co-15%, Mo-6.5%, Ti-1% and the balance is Fe; from cold as well as hot worked steel products, using novel thermal/thermo mechanical treatments. For hot worked steel products, af...

The present invention relates to the heat treatable dual phase martensitic-ferritic stainless steel alloy in which the metastable austenite phase is transformed to . unstable martensite phase after cooling, and unstable martensite phase is further transformed to tempered martensite phase after tempering treatment re...

The present invention involves modified heat treatment method to produce martensitic stainless steel with high strength and high toughness. The material is subjected to high temperature austenitization treatment followed by rapid cooling and tempering treatment in the phase one. In phase two, a series of thermal cyc...

This invention relates to thin wires of Ti - 6A1 - 4 V for welding applications and an improved method for their manufacture. According to this invention a low diameter titanium alloy based wire is manufactured by hot swaged and hot drawn process in a sequence to achieve desired final diameter. The property of good ...

The invention relates to an improved heat treatment process for obtaining precipitation hardening stainless steel (commercially known as MDN 138) with improved impact toughness. The process involves, careful control of the additive materials and followed by processing to impart the desirable mechanical properties in...

The invention relates to air hardening alloy steel used mainly in the manufacture of armory and a method of manufacturing of the alloy steel. The constituent components of the alloy steel are melt in electric arc furnace with predetermined proportions and ranges. Uniform material homogeneity is achieved by thorough ...

The invention relates to the method of manufacturing of large sized forgings using alloy material in the Grade 9CrlMo. The content of sulphur and aluminium in the alloy material is maintained in a very narrow range during primary melting to achieve the desired properties of the forgings achieved. Also, the ingots ar...

This invention relates to a fine grained cobalt based alloy with excellent mechanical and creep properties and a method for manufacturing the same. The Cobalt based alloy of this invention is manufactured using combination of mechanical working with a solution annealing process with uniform micro structural grain st...

This invention relates to a flexible knee joint implant for human body. It consists of an upper rod and a lower rod. The upper rod terminates in an annular cavity. The lower rod has a projection which lies in flush with this annular cavity. These two parts are held together at the knee area with the help of hinged f...

This invention relates to a needle applicator. It consists of a base member having an outward hollow projection on onde side. The opposite side is contoured. The hollow projection terminates in an opening for a needle to pass through. A needle holder assembly is partly housed within the rotatable knob housed...

A Novel Method for Revealing Prior Austenitic Grain Boundaries in Precipitation Hardened Martensitic Steels The present invention discloses novel heat treatment cycle and etching procedure for revealing prior austenitic grain boundaries in precipitation hardened martensitic steels. This method comprises heat trea...

The present invention discloses a novel method for retaining the Magnesium while production of Superni 276 in VIM Furnace and ensuring recovery of Magnesium in ESR using Special Slag. The method involves melting a composition comprising nickel, chromium, molybdenum, tungsten, cobalt, iron, and manganese in a Vacuum...

The present invention discloses a novel method for recycling superalloy waste material, comprising the steps of obtaining superalloy waste material generated during the casting processes; and melting the said waste material in VIM to form an ingot refining the said ingot in ESR to prepare high-entropy alloy (HEA), w...

ABSTRACT Method for Chemistry Adjustment of Ni Ti Alloy during Secondary Melting in Vacuum Arc Remelting Furnace The present invention discloses a method for adjusting the composition of a NiTi alloy electrode obtained from a Vacuum Induction Melting (VIM) furnace, the method comprising calculating the required am...

ABSTRACT ELECTROSLAG REFINING FURNACE STRUCTURE FOR REMELTING OF HIGHER CAPACITY ELECTRODES A novel self-supporting Electro-Slag Remelting (ESR) furnace structure optimized for re-melting 20-ton electrodes. Key components include a pivoting column for controlled electrode movement, a driving column for critical c...

ABSTRACT FORCED AIR COOLING UNIT FOR METALLURGICAL APPLICATIONS The present invention discloses a forced air-cooling device for metallurgical applications, comprising a blower unit comprising a motor and a fan for generating a high-velocity air stream; a cooling chamber with nozzles for directing the high-velocit...

ABSTRACT PRIMARY MELTING OF TITANIUM ELECTRODE BY MELTING SMALLER ELECTRODE OVER OTHER SMALLER ELECTRODE The present invention aims to disclose a technique of primary melting of Titanium electrode over another smaller electrode to from large size ingots for forging large components. It involves producing a com...

ABSTRACT QUENCHING TANK WITH AGITATING SETUP A portable lab scale quenching tank (100) for metallurgical heat treatment processes, comprising a tank body (8) configured to contain a quenching medium; a workpiece tray (10) positioned within the tank body (8), supported by a supporting arm (12) and handle (16); ...

ABSTRACT DESIGN AND DEVELOPMENT OF HYDRO PRESSURE TESTING MACHINE A hydro pressure testing apparatus for testing tubes ability to withstand 200 bar pressure during its test comprising of a plurality of big supporting frames (10), small supporting frames (12), a rectangular supporting structure (14), a horizontal...

ABSTRACT An automatic billet grinder for transversally grinding billets comprising a grinding machine base (30); a linear guide rail (90) mounted on the grinding machine base; a guide block (80) movably disposed on the linear guide rail; a secondary motor (40) configured to move a grinding wheel assembly forward a...

ABSTRACT METHOD TO IMPROVE THE FRACTURE TOUGHNESS OF MARAGING STEEL 250 HIGHER SIZE FORGED BARS The present invention discloses a novel method for manufacturing maraging steel 250 forged bars of 200 diameter with fracture toughness of 80-90 MPavm. The method involves a series of steps, including forging the steel ...

ABSTRACT The multicompany alloy AlCoCrFeNi alloy synthesized by tuning the material composition by incorporating the material with different atomic radio achieved the desired tribological performance at room and high temperature.

ABSTRACT METHOD TO IMPROVE FRACTURED TOUGHNESS OF MARAGING STEEL 250 A method for producing Maraging Steel 250 with excellent fractured toughness toughness of 90 - 100 MPavm. The method involves a series of steps including Vacuum Induction Melting (VIM) of a consumable electrode, spectrographic monitoring for prec...

ABSTRACT DEVELOPMENT OF ULTRA HIGH STRENGTH 12X18H10T COLD DRAWN WIRES WITH MODIFIED PROCESS ROUTE The present invention discloses a novel processing route for excellent cold drawing of High strength 12X18H10T wire, wherein the material received from HRM is subjected to high temperature annealing at 1140 - 1160o C...

ABSTRACT METHOD FOR MANUFACTURING TITAN-31 4.0MM & BELOW COLD ROLLED SHEETS & STRIPS The present invention discloses a novel method for manufacturing Ti6Al4V cold rolled sheets of size 4 mm and below for strategic applications wherein the final ingot of dia 850 mm is forged and hot rolled to 5-6 mm X 800 X L mm th...

ABSTRACT DEVELOPMENT OF A NOVEL MELTING PROCESS ROUTE FOR RECYCLING OF MARAGING STEEL SCRAP The present invention provides a novel method for efficiently recycling maraging steel scrap. It involves melting the maraging steel scrap in an electric arc furnace, followed by forming an electrode. Subsequently, the ele...

ABSTRACT METHOD FOR PREPARING TI6Al4V THIN SHEETS THROUGH HOT PACK ROLLING TECHNIQUE The present invention discloses method for preparing Ti-6Al-4V sheets of 1.5 mm thickness using Hot Pack Rolling Technique wherein three 5 mm Ti-6Al-4V alloy plate are stacked and tick welded from all sides to avoid dislocation of...

METHOD OF PRODUCING HEAVY SECTION TITANIUM SLAB FORGING The present invention provides a method for producing heavy section titanium slab with uniform mechanical properties in three direction viz. longitudinal, Long Transverse and short transverse along with stringent UT qualification. The present invention aims at...

ABSTRACT TOOL FOR PREPARING FEED STOCK FOR FRICTION STIR ALLOYING The present invention discloses a friction stir alloying tool comprising a wheel located at a front end; and a wedge-shaped opening located at another end; wherein the tool is configured to move manually back and forth through the wheel, with the...

ABSTRACT BULLET RESISTANT PATKA WITH 360 DEGREE PROTECTION A Bullet Resistant Patka having strength to withstand the impact of from any angle including welded region, characterized in that the method comprising the steps of preparing a low alloy martensitic steel plate of predefined thickness of 4.8 mm and 3.2 mm ...