对热型连铸锌铝合金定向凝固线材的铸态及热处理组织进行了观察、分析和讨论。

The as cast and heat treatment microstructure of ZA alloy rod directionally solidified by continuous casting has been analyzed.

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研究了不同的型壳保温温度对一种铸造单晶高温合金dd 98铸态组织、热处理组织和持久性能的影响。

Effect of mould holding temperature on the microstructure and mechanical properties of single crystal superalloy DD98 have been investigated.

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试验与生产结果表明，提高粗加工挑扣成形质量、改善热处理组织、控制磨削工艺可以有效地防止磨削裂纹的产生。

By experiment and production practice, it was pointed out that such crack could be prevented by control of pick forming, heat treatment and grinding process.

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