摘要
采用显微组织观察、硬度测试、室温冲击试验研究了不同振幅机械振动对消失模铸造ZGMn13钢组织和性能的影响。结果表明：浇注过程中施加振动,使ZGMn13钢中非金属夹杂物分布更加均匀、细小,晶粒明显细化,试样硬度和冲击吸收能量有所提高。振幅在0.3～0.6 mm内,随着振动振幅的增加, ZGMn13铸钢晶粒逐渐细化,硬度和冲击吸收能量逐渐提高。振幅0.6 mm时,硬度和冲击吸收能量达到最大值,分别为413HB和1.7J,比未振动的ZGMn13钢试样分别提高了27.9%（323→413HB）和21.4%（1.4→1.7J）。
The effects of mechanical vibration with different amplitudes on the microstructure and properties of EPC ZGMn13 steel were studied by means of microstructure observation, hardness test and room temperature impact test. The results show that after mechahical vibration during pouring, the distribution of non-metallic inclusions in ZGMn13 steel is more uniform and smaller, the grains are finer, and the hardness and impact absorption energy of the samples increase. When the amplitude is 0.3-0.6 mm, with the increase of vibration amplitude, the grain size of ZGMn13 cast steel is gradually refined,and the hardness and impact absorption energy gradually increase. When the amplitude is 0.6 mm, the hardness and impact absorption energy reach the maximum values of 413 HB and 1.7 J, respectively, which are 27.9%（323→413 HB） and 21.4%（1.4→1.7 J） higher than those of non-vibrated ZGMn13 steel, respectively.
作者
刘永勋
马秉馨
LIU Yongxun;MA Bingxin(I.Department of Mechanical Engineering,Henan Institute of Technology,Xinxiang 453000,Chin;School of Mechanical Engineering,Xi＇an Jiaotong University,Xi＇an 710049,China;Department of Material Engineering,Henan Institute of Technology,Xinxiang 453000,China)
出处
《热加工工艺》
CSCD
北大核心
2018年第17期85-87,共3页
Hot Working Technology
基金
河南省科技厅科技计划项目(142102210418)
关键词
ZGMN13钢
振幅
消失模铸造
ZGMn13 steel
amplitude
expendable casting process （EPC）
