Effect of Vanadium on Property of Spraying Alloy Material

In order to improve the wearablility and spalling resistance of Fe60E and Ni60A spraying alloy layer, two new spraying alloys named Fe60EV and Ni60AV are developed by add 1.5%~1.8% V into Fe60E and Ni60A spraying alloy.The hardness,wearablility and spalling resistance of the new spraying alloy layers are tested in laboratory.The results show the properties of Fe60EV and Ni60AV spraying layers are better than that of Fe60E and Ni60A spraying layers,that is the hardness is higher and the wearablility and spalling resistance are improved obviously.The Fe60EV and Ni60AV as well as Fe60E and Ni60A are sprayed on the backing block of an industrial hot rolled coiler respectively.The practical results show the service life of the backing block sprayed Fe60EV and Ni60AV alloy layers prolongs over 30% than that of sprayed Fe60E and Ni60A spraying alloy layers respectively.