Vickers Hardness Machine Designed for High-Temperature Material Research

As materials research continues to demand more precise testing under challenging thermal conditions, the Vickers hardness machine Tester provides a specialized solution for hardness measurements at temperatures up to 1200°C. Designed for in-situ Vickers hardness testing, the machine is intended for metals, ceramics, cemented carbides, coatings, composite materials, thin films, and protective coatings.

The Vickers hardness machine combines controlled high-temperature testing with automated loading and measurement functions. Its temperature range extends from room temperature to 1200°C, with a heating rate of 10–80°C/min and temperature stability of ±1°C. This allows researchers and quality-control teams to examine how material hardness changes as temperature conditions vary.

Automated Testing for Consistent Measurements

A key feature of the Vickers hardness machine is its fully automatic, programmable loading mode. The system does not support the entire test force range of 0.2 kgf to 50 kgf; it only supports the specific loads listed below, including multiple selectable force levels such as 0.2，0.3, 0.5, 1, 2, 2.5, 3, 5, 10, 20, 30, and 50 kgf.

The equipment uses a Diamond Vickers indenter with a 136° included angle and automatic switching. Its optical system includes 10X/20X objective lenses, supporting observation and analysis during hardness testing. Dwell time can be set from 5 to 60 seconds, while the hardness range is specified as 5–3000 HV.

The automated testing and analysis functions are designed to streamline loading, dwell-time control, objective or indenter switching, and integrated image analysis. These functions can help improve testing efficiency and repeatability when evaluating materials under elevated temperatures.

Controlled Temperature and Inert Atmosphere

Temperature control is central to the Vickers hardness machine's design. A molybdenum disilicide heating system provides stable heating from room temperature to 1200°C, with temperature stability of ±1°C. This makes it possible to investigate hardness behavior across a broad temperature range within a controlled test environment.

The equipment also incorporates a closed-loop gas purification system designed to maintain oxygen and moisture levels below 1 ppm. According to the product information, this controlled inert atmosphere helps minimize oxidation and provides a stable testing environment for oxidation-sensitive materials.

Applications Across Advanced Materials

The Vickers hardness machine is positioned for a range of research, engineering, and quality-control applications. Typical uses include high-temperature hardness testing, high-temperature material characterization, coating and surface engineering, cutting tool and wear material evaluation, and research and quality control.

For high-temperature hardness testing, the system can perform in-situ Vickers hardness measurements of metals, ceramics, cemented carbides, coatings, and composite materials at elevated temperatures.

For material characterization, it can support evaluation of hardness, thermal stability, oxidation resistance, and high-temperature mechanical behavior. In coating and surface engineering, the system can be used for hardness testing of thin films, protective coatings, heat-treated materials, and surface-hardened layers.

The product information also highlights applications in cutting tool and wear material evaluation, where researchers can assess the performance of cutting tools, cemented carbides, and wear-resistant materials under high-temperature conditions.

Precision Positioning and Testing Capability

The Vickers hardness machine features an X-Y stage travel of 8 mm × 8 mm and a Z-axis travel of 12 mm. Its listed Z-axis positioning accuracy is ±0.05 μm, supporting precise positioning during testing.

The maximum specimen size is specified as Φ15 × 10 mm. The equipment is powered by AC 220 V, 50/60 Hz, while the listed equipment dimensions are 3000 mm × 1500 mm × 2000 mm (L × W × H).

A Practical Platform for High-Temperature Hardness Analysis

By combining automated testing, precise temperature control, inert atmosphere protection, and integrated analysis capabilities, the Vickers hardness machine is designed to support detailed investigation of material hardness under elevated-temperature conditions.

Its capabilities are particularly relevant to laboratories and industrial research environments studying how hardness and material performance change with temperature. The accompanying testing data also illustrates temperature-related changes in fracture toughness, high-temperature Vickers hardness, and indentation morphology, providing a visual reference for material behavior at different temperatures.

With testing capability from room temperature to 1200°C, programmable forces up to 50 kgf, and automated measurement functions, the Vickers hardness machine represents a focused testing platform for researchers and quality teams working with advanced materials and high-temperature applications.

Fracture Toughness as a Function of Temperature

High-Temperature Hardness Degradation Curve

Comparison of Indentation Morphology at Different Temperatures

The above information is for reference only. We specialize in the R&D and production of testing instruments for mechanical properties of materials under extreme conditions, covering Hopkinson bars, high‑temperature hardness testers, impact penetration testing machines, and other series. For specific product details, technical specifications, or application solutions, please contact us for professional advice.