淬火时施加磁场，使合金时效后的强度和塑性有所提高。

Quenching in magnetic field can increase the strength and the elongation of the alloy after ageing.

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结果表明，DD 2单晶合金时效后无任何有害相产生。

The results showed that TCP phase has not appeared in DD2 single crystal alloy after ageing.

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试验研究了开箱温度和冷却速度对低、高温时效型合金时效硬化效果的影响。

The effects of opening flask temperature and cooling rate on low and high temperature age-hardening alloy casting are tested and studied.

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