Rare Earth alloys
Yttrium alloy manufactured by PML using advanced Vacuum Induction Melting (VIM) technology for precise chemistry, purity, and process control.
A precision-engineered active element designed to prevent oxidation and ensure structural integrity in the most punishing heat environments.
CoCrNiAlY alloy ingots are produced from high-purity raw elements using PML’s precision-controlled VIM furnace.
Specifications are defined based on application requirements such as thermal resistance, corrosion behavior, or compatibility with coating processes.
A combination of Cobalt, Chromium, Nickel, Aluminum, and Yttrium is charged into the VIM furnace under vacuum or atmosphere. Trace elements can be added without breaking vacuum.
Melting occurs under high vacuum to prevent contamination and oxidation. Composition is fine-tuned using in-situ oxygen meters, spectrometry, and temperature monitoring.
Molten alloy is cast into precision molds using an automated tilting mechanism under vacuum to achieve controlled solidification.
Ingot surfaces are cropped and cleaned. Final dimensions are verified for downstream usability.
Alloy ingots are tested, documented, and packaged according to customer specifications and application requirements.
Chemical Composition (Wt%)
| Element | Min (Wt%) | Max(Wt%) |
|---|---|---|
| Sulphur | 0.00 | 0.012 |
| Phosphorous | 0.00 | 0.012 |
| Chromium | 20.00 | 22 .00 |
| Nickel | 31.00 | 33.00 |
| Cobalt | Balance | Balance |
| Aluminium | 7.00 | 9.00 |
| Yttrium | 0.35 | 0.65 |
| Others | 0.00 | 0.20 |
Process Capability
The CoCrNiAlY alloy provides high-temperature strength, excellent oxidation resistance, and good ductility due to the presence of Yttrium.
| Alloy | Mechanical properties* | PML alloy: as cast* |
|---|---|---|
| PML CoCrNiALY *Typical | Vicker Hardness (VHN) | 450-600 |
| Tensile Strength Ultimate (UTS) | 900MPa max | |
| Tensile Strength Yield (YS) | 450 - 600MPa | |
| Elongation Break | - | |
| Reduction of Area | - |
High-performance cobalt-based alloy with superior oxidation resistance, high-temperature stability, and exceptional structural integrity.
Advanced VIM processing enables tight control of chemical tolerances and minimal gas content.
| Input : Batch size | Output | Alloying Elements | Chemistry tolerance | Impurities Max |
|---|---|---|---|---|
| 30 kgs to 600 Kgs | Ingot of required shape as per customers requirement | Ni,Y, Cr, Co | +/- 0.5 % for Higher level % (Above 2 digit) and +/- 0.3 % for lower level % (Single digit) | Oxygen < 25ppm Hydrogen < 3ppm Nitrogen < 50ppm All other impurities < 50 ppm |
CoCrNiAlY is widely used where thermal and chemical resistance are critical:
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With over six decades of expertise, PML delivers high-performance component technologies and precision solutions trusted across critical industries.
ISO 45001
Occupational Health and Safety (OH&S) management systems
ISO 14001
Environmental Management Systems (EMS)
ISO 9001
Quality Management Systems (QMS)
IATF 16949
International Standard for Automotive Management Systems
AS 9100
Aerospace Quality Management System (QMS)
It is widely used in high-temperature applications including thermal spray coatings, aerospace engines, and automotive components.
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High-performance permanent magnet alloy used in electric motors, sensors, and magnetic devices. Engineered for exceptional magnetic strength and process reliability.
Depend on PML’s FeLaSi alloy for advanced magnetic performance, catalytic properties, and high-temperature resilience.
Rely on PML SOFC Alloy 2 superalloy for exceptional heat and corrosion resistance across demanding environments.
Pioneering cutting-edge technology to develop reliable, high-performance magnetic components and engineering solutions.
