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采用4.5 mm和3 mm厚的成型炸药对高锰钢进行爆炸硬化试验,并测试了不同硬化层深度下高锰钢试件的硬度和抗拉强度。结果表明,在两种爆炸加载条件下,高锰钢试件表面硬度的增加量相同,但是3 mm厚炸药爆炸3次后高锰钢试件的硬层深度大于4.5 mm厚炸药爆炸两次后高锰钢试件的硬层深度,在相同深度处,3 mm厚炸药爆炸3次高锰钢试件的硬度大于4.5 mm厚炸药爆炸两次后高锰钢试件的硬度;爆炸硬化抗拉强度均随硬化层深度的增加而降低,且在相同深度处,3 mm厚炸药爆炸3次后高锰钢试件的抗拉强度大于4.5 mm厚炸药爆炸两次后高锰钢试件的抗拉强度。
High-manganese steel was subjected to an explosion hardening test using 4.5 mm and 3 mm thick formed explosives, and the hardness and tensile strength of the high manganese steel specimens at different depths of the hardened layer were tested. The results show that under the two kinds of explosive loading conditions, the increase of the surface hardness of the high manganese steel specimens is the same. However, after the 3 mm thick explosive explodes three times, the hard layer depth of the high manganese steel specimens is more than 4.5 mm. After the explosives explode twice High manganese steel specimens hard depth, at the same depth, 3 mm thick explosives explode 3 high manganese steel specimens hardness greater than 4.5 mm thick Explosive twice high manganese steel specimens hardness; Explosive hardened tensile The strength decreases with the increase of the depth of the hardened layer. At the same depth, the tensile strength of the high manganese steel specimen after the 3 mm thick explosive explodes three times is greater than 4.5 mm at the same depth. After the explosive explodes twice, Tensile strength.