论文部分内容阅读
一般钢中因含磷较低(<0.04%),不易出现磷共晶.但在高锰钢中因冶炼、铸造和热处理工艺的不当,却会出现磷共晶,即铁-磷-锰-碳的共晶组织,它使高锰钢裂纹敏感性增大,机械性能显著下降,同时使脆性转变温度提高. 高锰钢中出现磷共晶,对其形成机理、形态以及水韧处理能否将其消除等问题目前尚有异议,本文就上述问题进行了试验. 一铸态磷共晶的形成高锰钢是一种高合金耐磨钢,含锰量为10～14%;碳量为1.0～1.4%.冶炼时由于加入大量含磷较高的锰铁合金,使高锰钢中含磷量增加约0.05～0.10%.
Phosphorus eutectic is not likely to occur due to the low phosphorus content (<0.04%) in general steel, but due to improper smelting, casting and heat treatment processes, phosphorus eutectic appears, ie, Fe-P-Mn- Carbon eutectic structure, which makes the high manganese steel crack sensitivity increases, the mechanical properties decreased significantly, while increasing the brittle transition temperature.Phosphoric eutectic in high manganese steel, the formation mechanism, morphology and toughness of the water can Its elimination and other issues currently there are objections, the paper on the above issues were tested. A formation of phosphorus eutectic formation of high manganese steel is a high alloy wear-resistant steel, manganese content of 10 to 14%; carbon content of 1.0 ~ 1.4%. Smelting due to the addition of a large amount of phosphorus-containing manganese ferroalloy, high manganese steel phosphorus content increased by about 0.05 to 0.10%.