In metallurgy, a picric acid etch has been commonly used in optical metallography to reveal prior austenite grain boundaries in ferritic steels.
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Testing has been conducted on candidate Ni-based alloys, austenitic steels, ferritic steels and ceramics for corrosion resistance in s cycles.
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In 2005, ferritic steel ( ferromagnet ) tiles were installed in the vacuum vessel to correct the magnetic field structure and hence reduce the loss of fast ions.
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Transformation Induced Plasticity ( TRIP ) steel involves special alloying and heat treatments to stabilize amounts of austenite at room temperature in normally austenite-free low-alloy ferritic steels.
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