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Effect of Manganese Addition and Sintering Conditions on Mechanical Properties of Low Carbon 3Cr Prealloyed Steels

机译:锰的添加和烧结条件对低碳3Cr预合金钢力学性能的影响

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Mechanical properties, microstructure and fracture of Fe-3Cr-0.5Mo-xMn steels sintered laboratory at 1250℃ and industrially at 1180℃, and of Fe-3Cr-0.3Mo-0.3V-xMn steels laboratory sintered at 1200℃ are presented; all steels with 0.24% C. The highest tensile strength of 806 and 856 MPa attained the steels with 2% Mn based on Fe-3Cr-0.5Mo powder and of 929 MPa the Fe-3Cr-0.3Mo-0.3V-l.5Mn-0.24C steels. Linear increase of hardness and relatively linear decrease of impact energy in dependence on Mn addition was recorded. Tested steels exhibited lower heterogeneity of the microstructures. The fracture of steel containing vanadium with 2% Mn showed more metallic inclusions adversely affecting the strength properties.
机译:给出了Fe-3Cr-0.5Mo-xMn钢实验室在1250℃和工业上在1180℃下烧结的力学性能,显微组织和断裂,以及Fe-3Cr-0.3Mo-0.3V-xMn钢实验室在1200℃下烧结的力学性能,显微组织和断裂。所有的钢都含有0.24%的碳。基于Fe-3Cr-0.5Mo粉末,最高拉伸强度为806和856 MPa,Mn含量为2%,Fe-3Cr-0.3Mo-0.3V1.5 Mn-0.24的拉伸强度为929 MPa。 C钢。记录了依赖于Mn添加的硬度的线性增加和冲击能量的相对线性的减少。经测试的钢表现出较低的组织异质性。含有2%Mn的钒的钢的断裂显示出更多的金属夹杂物,对强度性能产生不利影响。

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