TY - JOUR
AU - Vainerman, V.
AB - B. B. Vinokur, S. E. Kondratyuk, UDC L. I. Markovskaya, R. A, Khrunik, K. B. Katsov, and V. I3. Vainerman With the selection of a cementation steel, in addition to its mechanical properties and hardenability, it is frequently necessary to take into account its tendency toward the formation of pittings. For the cast cutters of large drilling bits, a cast chrome---nickel-molybdenum steel with 2.5-3% nickel is used. Taking account of the effect of the elements on the crystallization conditions, dendritic liquation, casting properties, and the density of the cast metal [1-3], a new steel 18KhGNMFL has been developed [4], containing 0.16-0.22% C; 0.3-0.5 St; 1.1-1.3 Mn; 1.1-1.3 Cr; 0.7-0.9 Ni; 0.18-0.25 Mo; 0.04-0.08% V. It has been established that the required st rength, ductility, and impact strength are assured by repeated quenching from 780-790~ and annealing at 150-170~ However, here the contact endurance of the steel was not taken into consideration. The present authors have investigated the effect of contact stresses, the amourtt of residual anstenite, and the hardness of a cementation layer of steel 18KhGNMFL on its contact endurance. The steel was cast into clover-shaped samples; the samples were prepared from the petals of the cast sample, where 
TI - Contact endurance of cast cementation steel
JF - Materials Science
DO - 10.1007/BF00731975
DA - 2004-11-18
UR - https://www.deepdyve.com/lp/springer-journals/contact-endurance-of-cast-cementation-steel-LEAowdCdgS
SP - 73
EP - 75
VL - 14
IS - 1
DP - DeepDyve
ER -