该技术采用微合金化，利用正交试验设计方法，对不同成分搭配的试样进行宏观硬度和冲击韧性测试，优化了合金成分。

The composition was optimized by tiny alloying, orthogonal test design and the hardness and impact toughness test for the different samples with different combination of alloy composition.

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试验表明，在T（10）钢中添加稀土元素对硬度没有明显的影响，但能显著改善该钢的冲击韧性。

The results show that RE additive may improve considerably the impact toughness and has little effect on hardness of steel T10.

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经过试验测得添加助剂后的材料在抗冲击强度、硬度、氧指数等方面都有明显的改善。

After adding additives measured in experiment, the materials in the impact strength, hardness and oxygen index have been improved obviously.

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