利用激光快速熔凝技术对DD 2单晶合金在超高温度梯度和快速凝固条件下的组织形态和元素的微观偏析行为进行了研究。
The microstructure characteristics and microsegregation of DD2 single crystal have been studied under ultra-high temperature gradient and rapid solidification conditions by laser rapid remelting.
结果表明，研究不锈钢合金系统的超高温腐蚀行为十分必要和迫切。
The results show that it is necessary and urgent to research the super-temperature corrosion behavior of the stainless steel alloying system.
铌及铌硅化合物具有优良的力学性能，可替代现有的镍基合金超高温材料。
Niobium and niobium silicides due to their good mechanical properties, have high potential for being the high-temperature materials as a substitute for nickel alloys.
铌及铌硅化合物具有优良的力学性能，可替代现有的镍基合金超高温材料。
Niobium and niobium silicides due to their good mechanical properties, have high potential for being the high-temperature materials as a substitute for nickel alloys.
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