____________ is the reduction in toughness due to a metallurgical change that can occur in some low alloy steels as a result of long-term exposure in the temperature range of about 650º F to 1100º F.

Question

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Temper embrittlement is a phenomenon where certain low alloy steels lose their toughness due to a change in their microstructure from long-term exposure in the temperature range of 650º F to 1100º F. This change can make the steel brittle and susceptible to cracking or failure under stress, even at lower temperatures. This effect is reversible by heating the metal to a higher temperature and cooling it slowly.

____________ Is the Reduction in Toughness Due to a Metallurgical