The thermal expansion coefficient of the TZM alloy rod is approximately in the range of 5.4 × 10^-6 to 6.0 × 10^-6 degrees Celsius^-1 (°C^-1). The coefficient of thermal expansion is a measure of how much a material expands or contracts linearly as its temperature changes. It describes the rate of change in length, volume, or dimension of a material as its temperature changes.
Since the main components of the TZM alloy rod are molybdenum (Mo), titanium (Ti) and zirconium (Zr), and the thermal expansion coefficients of these elements are slightly different, the thermal expansion coefficient of the TZM alloy will also be affected by its composition ratio.
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