The dynamic strength of heavy 90W—7Ni—3Fe alloy (wt %) was studied on two types of specimens: formed from submicron powder by spark plasma sintering (SPS) and from coarse-grained powder with a particle size of ≈20 µm by standard liquid phase sintering (LPS). Mhe study shows that the dynamic strength of the LPS and SPS specimens ranges up to 2750 and 3150 MPa, respectively, and that the SPS projectiles at an impact velocity of 1200 m/s penetrate 60% deeper into a steel target than the LPS projectiles. The difference in the penetration depth results from different penetration mechanisms: piercing for the coarse-grained material and cratering for the fine-grained one.

中文翻译：

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火花等离子烧结法生产重90W—7Ni—3Fe合金的动态强度

在两种类型的试样上研究了重 90W-7Ni-3Fe 合金的动态强度（wt %）：由亚微米粉末通过放电等离子烧结 (SPS) 形成，以及由标准粒度 ≈20 µm 的粗粒粉末形成液相烧结（LPS）。Mhe 研究表明，LPS 和 SPS 试样的动态强度范围分别高达 2750 和 3150 MPa，并且 SPS 弹丸以 1200 m/s 的冲击速度穿透钢目标比 LPS 弹丸更深 60%。穿透深度的差异是由不同的穿透机制造成的：粗粒材料穿孔，细粒材料穿孔。