Solidification Structure and Tempering Characteristics of High Vanadium and High Chromium White Cast Iron ContAlning Nickel
The solidification structure of high vanadium(9wt％ )and high chromium(1Owt％)white cast iron contAlning nickel is martensite and retAlned austenite matrix,spherical carbide VC and eutectic carbide M7C3. The adding nickel(O.8％ -1. 2％) has been guaranteed that the as-cast structure of the matrix of the white cast iron is martensite and retAlned austenite. The highest hardness(HRC64)can be obtAlned by second hardening during the tempering at high temperature (560℃) ,and the vigorous oxidation phenomenon during the quenching at high temperature(>900℃)can be avoided ,which becomes a kind of applied wear resistance material. The wear resistance of high vanadium and high chromium white cast iron contAlning nickel is 5 times that of high chromium white cast iron with 20％Cr by the quenching and tempering. The stability of the austenite matrix of Fe-Cr-V - Ni - Si - C system alloys is examined by the acquired interatomic potentials functions.
white cast iron solidification structure tempering interatomic potential
Ma Yongqing Yu Tao Liu Yanxia
Dalian Maritime University .Dalian 116026 ,China Dalian Haien Shipping Engineering Technology Co. ,Ltd, Dalian 116031 ,China Department of Physics, Liaoning University, Shenyang 110036, China
国际会议
69th World Foundry Congress(第69届世界铸造会议 WFC 2010)
杭州
英文
419-422
2010-10-16（万方平台首次上网日期，不代表论文的发表时间）