含B中碳低合金铸钢及B、Al、Ti的相互作用和对冲击韧度的影响  

Effect of Impact Toughness of B,Al,Ti Content in Mid-carbon Low Alloying B Cast Steel

作　　者：胡开华 任美康 

机构地区：[1]宁波浙东精密铸造有限公司,浙江宁波315137

出　　处：《铸造技术》2005年第9期767-769,共3页Foundry Technology

摘　　要：对B在中碳低合金铸钢中的作用进行了试验研究,探索了微量元素B、Al、Ti的相互作用和对冲击韧度的影响.结果表明,B能够显著提高中碳低合金铸钢的冲击韧度,Al、Ti对中碳低合金铸钢冲击韧度无明显影响,但Al能一定程度地影响B的吸收,从而间接地影响铸钢的冲击韧度.最佳的B、Al、Ti的含量为0.0021%～0.0038%B、0.02%～0.04%Al、0.012%～0.025%Ti.Research and investigate the indicate that boron the effect on impact toughness of boron content in mid-carbon low alloying boron cast steel, interaction of boron, aluminium, titanium and its effect on impact toughness. The results can increase the impact toughness obviously, the effect of aluminium and titanium is not obviously, however aluminium can effect the rccovery efficiency of boron in a certain extent, this produces indirect effect on the impact toughness. The optimal content is B 0. 0021- 40. 0038%,Al 0. 0240.04%,and Ti 0. 01240. 025%.

关 键 词：B AL TI 低合金铸钢 冲击韧度 

分 类 号：TG269[金属学及工艺—铸造] TG142.1[一般工业技术—材料科学与工程]