Through heat treatment, material hardness and strength increase, but impact toughness decreases.
热处理后，材料的硬度和强度均有提高，但冲击韧度下降。
Impact value is one of the criteria to evaluate material toughness.
冲击值是评价材料韧性的指标之一。
It has good characters of high toughness. It can be suffered some impact.
具有较高的韧性，能承受一定的冲击。
High toughness and impact strength.
抗冲击强度高、韧性高。
High toughness and impact strength.
抗冲击强度高、韧性高。
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