...键字: 定向凝固高温合金；DZ445合金；抽拉速率；微观组织；力学性能[gap=1720]Key words: directionally solidified superalloy; DZ445 alloy; withdrawal rate; microstructure; mechanical properties..
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定向凝固铸造高温合金(directionally solidified superalloy)23C6、Mc等(见高温合金材料的间隙相)的分布和形貌，Mc、%26gamma;-%26gamma;%26rsquo;共晶相特征是上..
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dz directionally-solidified superalloy dz4定向凝固合金
a directionally solidified superalloy 定向凝固合金
DZ4 directionally-solidified superalloy DZ4定向凝固合金
directionally solidified superalloy dz 定向凝固合金
directionally solidified superalloy dz 4 定向凝固合金
dz 4 directionally-solidified superalloy dz定向凝固合金
nickel-based directionally solidified superalloy 镍基定向凝固合金
directionally solidified eutectic superalloy 定向凝固共晶高温合金
directionally solidified Ni-based cast superalloy 定向凝固镍基铸造高温合金
The cracks on blades made of a directionally solidified superalloy were analyzed. The failure mode and cause were studied in virtue of fracture observation and metallographic analysis.
对定向凝固合金叶片的裂纹进行分析，在断口观察与金相组织分析的基础上，对叶片的失效模式与失效原因进行研究，并提出预防该类故障发生的措施。
The fracture of blades made of a directionally solidified superalloy was analyzed. The failure mode and cause were studied in virtue of fracture observation and metallographic structure analysis.
对定向凝固合金叶片的断裂故障进行了分析，在断口观察与金相组织分析的基础上，对叶片的失效模式与失效原因进行了研究，并提出了预防该类故障发生的措施。
By using physicochemical phase analysis, the phase in a new directionally solidified superalloy resisting combustion gas corrosion with long life had been determined qualitatively and quantitatively.
采用物理化学相分析方法，对一种新研制的抗燃气腐蚀长寿定向凝固合金的相作了定性和定量分析。
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