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文章测定了Ｎｉ３Ａｌ—Ｌｉ合金在不同温度下的压缩力学性能，发现微量的Ｌｉ能明显改善Ｎｉ３Ａｌ的室温塑性，作者分析了Ｌｉ对Ｎｉ３Ａｌ合金的作用机理，认为Ｌｉ与Ｂ类似，皆是偏聚在Ｎｉ３Ａｌ合金的晶界，起着改善和加强晶界的作用。
In this paper, the compressive mechanical properties of Ni3Al-Li alloy at different temperatures were measured and it was found that a small amount of Li can obviously improve the room-temperature plasticity of Ni3Al. The author analyzed the mechanism of Li on Ni3Al alloy. Li and B are similar, Ni3Al alloy grain boundaries, plays a role in improving and strengthening the grain boundaries.