In the aerospace and energy power sectors, researching the micro-scale deformation mechanisms of high-temperature materials is a core task for ensuring equipment reliability.

In September 2024, a team from the School of Energy and Power Engineering at Beihang University published significant research findings in the journal Optics and Lasers in Engineering. They proposed a method for fabricating heat-resistant gratings based on ultraviolet lithography and magnetron sputtering processes, successfully applying it to measure micro-scale deformation in nickel-based superalloy (NBSC) at 1000°C. GoGo Instruments' 5000N 1200°C Ultra-High Temperature Tensile Stage served as the core equipment, providing precise support for the in-situ high-temperature mechanical experiments in this study, helping the research team break through the bottlenecks of high-temperature measurement technology.

Article Title: 《Fabrication of microscale heat-resistant grating for in-situ high temperature deformation measurement by sampling moiré method》
Journal: 《Optics and Lasers in Engineering》
Customer Institution: Beihang University
Product Used: GoGo Instruments 5000N 1200°C Ultra-High Temperature Tensile Stage

The micro-scale plastic deformation of nickel-based superalloys under extreme temperatures directly affects material failure mechanisms. However, conventional gratings often fail at high temperatures, leading to insufficient measurement accuracy. This research required applying tensile loads to specimens in a 900°C ~ 1000°C environment while simultaneously capturing grating deformation data. This places extremely high demands on the control accuracy, mechanical loading stability, and anti-interference capability of the experimental equipment.

GoGo Instruments' 5000N  1200°C Ultra-High Temperature Tensile Stage became a key enabler for this research due to the following advantages:

1. Ultra-High Temperature Stability: Capable of precise testing from room temperature to 1200°C
, with temperature fluctuation ≤ ±0.1°C, ensuring stable observation of the grating.
2. High-Precision Mechanical Loading: Maximum load of 5000N, with adjustable loading rates from 0.1 to 500 μm/min, meeting the requirements for measuring micro-deformations.

GoGo Instruments Ultra-High Temperature Tensile Integrated Experimental System

In the study, the team used the GoGo Instruments Ultra-High Temperature Tensile Stage to perform in-situ heating and tensile experiments on NBSC specimens. The equipment, utilizing heating elements and real-time thermocouple feedback, heated the specimens to 900°C and maintained a constant temperature, while simultaneously applying a tensile load at a rate of 50 μm/min. By integrating a digital optical microscope, the researchers successfully captured dynamic deformation images of the heat-resistant grating at high temperatures and quantified the strain field distribution based on the sampling moiré method.

Deformation image (top) and phase difference distribution (bottom) of the heat-resistant grating on the NBSC specimen at 900°C

In-situ Tensile Heating/Cooling Stage

SEM Ultra-High Temperature Tensile Stage

Temperature Range: -190°C to 600°C / RT to 1200°C
Temperature Stability: ±0.1°C
Force Range: 0 ~ 5000N
Force Accuracy: 0.5% F.S.
Displacement Distance: 80mm
Displacement Resolution: ±1μm