{"id":26925,"date":"2024-07-10T08:27:40","date_gmt":"2024-07-10T06:27:40","guid":{"rendered":"https:\/\/www.linseis.com\/messgeraete\/dil-l78-rita\/"},"modified":"2026-03-03T11:01:50","modified_gmt":"2026-03-03T10:01:50","slug":"dil-l78-quenching-dilatometer","status":"publish","type":"messgeraete","link":"https:\/\/www.linseis.com\/en\/instruments\/dilatometer\/dil-l78-quenching-dilatometer\/","title":{"rendered":"DIL L78 RITA"},"content":{"rendered":"\t\t
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DIL L78 \u2013 Quenching, Deformation & Tensile Dilatometry<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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The LINSEIS DIL L78 <\/b>series is a high-performance quenching<\/strong><\/a> and deformation<\/strong><\/a> dilatometer platform designed for the precise analysis of phase transformations<\/strong><\/a>, thermomechanical<\/strong><\/a> behavior and microstructural evolution under realistic process conditions. Combining ultra-fast induction heating, controlled quenching and high-resolution dilatation measurement with nanometer precision, the system enables reliable detection of density changes, transformation temperatures and dimensional variations during complex heat treatment cycles.<\/p>

Developed for advanced metallurgy and process simulation, the DIL L78 operates in a temperature range from -150 \u00b0C up to 1600 \u00b0C (higher on request) and supports heating and cooling rates up to 4000 K\/s in quenching mode. Depending on the configuration, the system allows pure quenching analysis (DIL L78 Q), additional controlled compression (DIL L78 Q\/D), or full thermomechanical treatment including tensile testing (DIL L78 Q\/D\/T). This modular concept ensures maximum flexibility for creating CCT, CHT and TTT diagrams, generating stress\u2013strain curves and optimizing industrial processes such as hot rolling, forging and heat treatment.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Unique features<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Patented Laser Speckle Strain Measurement (2D, Non-Contact)<\/h3>

The DIL L78 integrates a patented laser speckle measurement system enabling non-contact, two-dimensional strain analysis directly on the sample surface.<\/p>

Unlike conventional push-rod systems, this optical method measures real displacement fields without mechanical influence. It allows selectable measurement areas, anisotropy detection and high spatial resolution without requiring markers on the specimen.<\/p>

This ensures maximum accuracy during rapid thermal cycles and under mechanical load \u2013 ideal for demanding transformation and deformation studies.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Real-Time In-Situ Laser Ultrasonic Grain Analysis (Optional)<\/strong><\/h3>

Through optional laser ultrasonic integration, the DIL L78 enables non-destructive in-situ grain size measurement during thermal cycling.<\/p>

Based on frequency-dependent ultrasonic attenuation modeling, the system provides real-time insight into:<\/p>

  • Recrystallization processes<\/p><\/li>

  • Grain growth<\/p><\/li>

  • Phase transitions<\/p><\/li>

  • Elastic constants<\/p><\/li><\/ul>

    This replaces time-consuming micrograph analysis and delivers continuous microstructural data during heating and cooling cycles.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    Direct Microstructure Insight During Thermal Cycling <\/h3><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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    Through optional laser ultrasonic integration, the DIL L78 enables real-time monitoring of grain growth and recrystallization during heating and cooling.
    This allows users to observe microstructural evolution directly during the experiment, significantly reducing the need for time-consuming post-process metallography.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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    Integrated Thermomechanical Process Simulation Platform <\/h3><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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    The DIL L78 is not just a dilatometer \u2013 it is a complete thermomechanical simulation system.<\/p>

    Depending on configuration (Q \/ Q-D \/ Q-D-T), the system enables:<\/p>

    • Controlled quenching<\/p><\/li>

    • Compression deformation<\/p><\/li>

    • Tensile testing<\/p><\/li>

    • True strain rate control<\/p><\/li>

    • Stress-controlled operation modes<\/p><\/li><\/ul>

      This makes it possible to realistically simulate industrial processes such as hot rolling, forging, extrusion and heat treatment in a laboratory environment.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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      Optimized for Extreme Dynamic Conditions <\/h3><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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      The DIL L78 is specifically engineered for highly dynamic thermal cycles, enabling reliable measurements even under rapid heating and quenching conditions.
      Its system stability ensures accurate detection of phase transformations and dimensional changes during fast metallurgical processes.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t