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Process for making oxide dispersion-strengthened tungsten heavy alloy by mechanical alloying
Process for making oxide dispersion-strengthened tungsten heavy alloy by mechanical alloying
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机译：机械合金化制备氧化物弥散强化钨重合金的方法
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摘要
Disclosed is a process for making an oxide dispersion-strengthened tungsten heavy alloy by mechanical alloying that includes the steps of: adding 0.1 to 5 wt. % of Y2O3 powder to a mixed powder comprising more than 90 wt. % of tungsten powder, and nickel and iron powders for the rest; and subjecting the resulting mixture to a mechanical alloying to prepare an oxide dispersion-strengthened tungsten heavy alloy powder. The oxide dispersion-strengthened tungsten heavy alloy prepared by the mechanical alloying is characterized in that fine Y2O3 particles are uniformly dispersed in the matrix which are stable at high temperatures results in enhanced high-temperature strength and a reduction of the shearing strain of the fracture during high-speed shear deformation.
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机译：本发明公开了一种通过机械合金化制造氧化物弥散强化的钨重合金的方法，该方法包括以下步骤：添加0.1至5重量％的钨。 Y 2 O 3 粉末所占的百分比为90％以上的混合粉末。 ％的钨粉，其余为镍和铁粉;将所得混合物进行机械合金化以制备氧化物分散体强化的钨重合金粉末。通过机械合金化制备的氧化物弥散强化钨重合金，其特征在于细小的Y 2 O 3 颗粒均匀地分散在基体中，高温下稳定增强了高温强度，并降低了高速剪切变形过程中断裂的剪切应变。
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