摘要
将不同量的WC粉体加入到ZL102合金试样,利用SEM、三维视频显微镜以及拉伸试验机等表征手段,研究WC粉体对ZL102合金性能的影响。试验结果表明:随着WC粉体加入量的增加,ZL102合金的微观组织明显细化,同时合金的力学性能得到明显的改善。当WC粉体加入量为0.20%时,ZL102合金获得了相对最好的显微组织和拉伸性能。共晶硅由不均匀分布的长针状逐渐转变为短棒状或点状在晶间均匀分布,晶粒组织从大量的柱状晶向等轴晶转化;抗拉强度及拉伸断口最大凸起高度先上升后下降,延伸率变化趋势不明显,抗拉强度237 MPa,提高了10.50%;拉伸断口最大凸起高度是1558.30μm,提高了72.21%。
Different amounts of WC powder were added to ZL102 alloy specimens.Characterization means such as SEM,3D video microscope and tensile testing machine were used to study the effect of WC powder on the properties of ZL102 alloy.The test results show that with the increase of WC powder addition,the microstructure of ZL102 alloy is obviously refined,while the mechanical properties of the alloy are obviously improved.When the amount of WC powder added is 0.20%,ZL102 alloy obtains the relatively best microstructure and tensile properties.Eutectic silicon from the uneven distribution of long needles gradually transformed into short rods or dots in the intergranular uniform distribution,grain or-ganization from a large number of columnar crystals to the equiaxial crystal transformation;tensile strength and tensile fracture maximum height of the bulge first rise and then decline,the elongation change trend is not obvious,the tensile strength of 237 MPa,an increase of 10.50%;tensile fracture maximum height of the bulge is 1558.30μm,an increase of 72.21%.
作者
贾熙
杨慕尧
杨继伟
王泽
杨军
艾秀兰
JIA Xi;YANG Muyao;YANG Jiwei;WANG Ze;YANG Jun;AI Xiuan(School of Material Science and Engineering,Dalian Jiaotong University,Dalian 116028,Liaoning China;School of Material Science and Engineering,Northeastern University,Shenyang 110000,Liaoning China;Dalian Huarui Heavy Industry Group Co.,Ltd.,Dalian 116028,Liaoning China)
出处
《中国铸造装备与技术》
CAS
2024年第3期46-52,共7页
China Foundry Machinery & Technology
基金
辽宁省科技厅联合开放基金(2021-KF-15-02)。
