Nb对液态激冷Fe_(70)Cr_(18)Mo_2B_9Si_1合金组织及性能的影响

金属学报, 1993, 29(7): 85-88.

Nb对液态激冷Fe_(70)Cr_(18)Mo_2B_9Si_1合金组织及性能的影响

胡坚 , 林一坚 , 许嘉龙 , 张士勋

上海钢铁研究所

高级工程师

上海(200940)

上海钢铁研究所应用基础部

上海钢铁研究所

关键词：微晶材料 , boride , microstructure

INFLUENCE OF Nb ON STRUCTURE AND PROPERTIES OF MELT-QUENCHED Fe_(70)Cr18Mo_2B_9Si_1 ALLOY

HU Jian , LIN Yijian , XU Jialong , ZHANG Shixun Shanghai Iron and Steel Research Institute Guangzhou UniversityDepartment of Applted Basic Research

Keywords： Nb , 硼化物 , 显微组织

本文对比了液态激冷Fe_(70)Cr_(18)Mo_2B_9_Si_1合金及Fe_(68.5)Cr_(18)Mo_2B_9Si_1Nb_(1.5)合金在不同温度保温后组织及显微硬度的变化情况,分析了Nb对基体晶粒尺寸以及硼化物相M_2B,M_3B_2的化学成分、点阵常数、形核及长大的影响,发现Nb能促进M_3B_2的形核,并降低了M_2B和M_3B_2的长大速率

An investigation was made of the structure and microhardness variation formelt-quenched Fe_(70)Cr_(18)Mo_2B_9Si_1 alloy, in comparison with Fe_(68.5)Cr_(18)Mo_2B_9Si_1Nb_(1.5), afterannealing under various temperatures. The effect of Nb on grain size of α-Fe matrix and thechemical composition, lattice parameters, nucleation and growth rate of M_2B andM_3B_2 borides phases have been analysed. It was observed that Nb may promote thenucleation of M_3B_2 and reduce the growth rate of M_2B and M_3B_2.

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[3]
[4]
[5]

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