摘要
以钛粉、钒铁粉、碳粉、铬铁粉、钼铁粉和铁粉为原料,用原位烧结法制备了(Ti,V)C钢结硬质合金。利用XRD、SEM和EDS对相组成、组织结构和微区成分进行了分析。结果表明:最佳烧结时间是1 h;烧结温度影响致密化程度,(Ti,V)C钢结硬质合金的最佳烧结温度是1 400℃;TiC钢结硬质合金的最佳烧结温度是1 420℃。(Ti,V)C钢结硬质合金的主要相组成为α-Fe、Fe3C、(Cr,Fe)7C3、(Ti,V)C。与TiC硬质相颗粒相比,(Ti,V)C颗粒形态更加圆整。
（Ti, V）C steel bonded carbide was produced by in -situ sintering technology with titanium powder, ferrovanadium powder, carbon powder, ferromolybdenum powder, ferrochromium powder and iron powder. The phases, microstructure and composition of the composites were studied by means of X - ray diffraction（XRD）, scanning electron microscopy（SEM） and energy dispersive spectrum（EDS）. The results show that the sintering temperature and sintering time significantly affect the densification of the alloys. The optimal sintering temperature for TiC, （Ti, V）C steel bonded carbide is 1 420 ℃, 1 400 ℃, respectively. The optimal sintering time is for 1 hour. The main phases of （Ti,V）C alloy are （Ti,V）C, α-Fe,Fe3C,（Cr, Fe）7C3. Compared with TiC particles, the （Ti,V） C particles present spherulitic morphology.
出处
《钢铁钒钛》
CAS
北大核心
2009年第2期80-85,共6页
Iron Steel Vanadium Titanium
