Warm surface rolling is a working process between room temperature and re-crystallization temperature.
With warm surface rolling of steel grade 45 grooved axle, its fatigue lifespan was measured by the endurance
bending test. The influence of surface rolling reduction on the axle fatigue life period was experimentally studied
at different surface rolling temperatures. The experimental results show that the fatigue life of the steel axles can
be significantly improved by the warm surface rolling process. The optimum rolling reductions for the maximum
fatigue life at different warm surface rolling temperatures were explored. The microstructures of the steel axles
were analyzed. The surface strength improved by refining grains after the warm surface rolling was calculated by
the Hall-Petch model. These research achievements could be also valuable to the relevant works.
LIU Xiang-rua (刘香茹), ZHOU Xu-dongb (周旭东)
. Analyse of Warm Surface Rolling on the Grooved Steel Axle[J]. Journal of Shanghai Jiaotong University(Science), 2012
, 17(3)
: 312
-314
.
DOI: 10.1007/s12204-012-1275-z
[1] Kalincov′a D. An influence of the surface rolling on mechanical properties of the band saw blades [J]. Materials
Engineering, 2009, 16(4): 1-4.
[2] Wang T, Wang D P, Liu G, et al. Investigations on the nanocrystallization of 40Cr using ultrasonic surface
rolling processing [J]. Applied Surface Science, 2008, 255(5): 1824-1829.
[3] Zhou Xu-dong, Shi Xiao-qiang, Wang Yun-fei. Finite element analysis of optimal surface rolling load
for crankshaft [J]. Transactions of the Chinese Society of Agricultural Machinery, 2006, 37(11): 140-142 (in Chinese).
[4] Gokyu I, Kishi T.Warm working of metals and alloys [J]. Bulletin of JSME, 1969, 12(51): 630-637.
[5] Dieter G E. Mechanical metallurgy [M]. Beijing: McGraw-Hill Education (Asia) Company and Tsinghua University Press, 2006.
[6] Li H B, Jiang Z H, Zhang Z R, et al. Effect of grain size on mechanical properties of nickel-free high nitrogen
austenitic stainless Steel [J]. Journal of Iron and Steel Research, International, 2009, 16(1): 58-61.
[7] Muszka K, Hodgson P D, Majta J. Study of the effect of grain size on the dynamic mechanical properties
of microalloyed steels [J]. Materials Science and Engineering A, 2009, 500(1-2): 25-33.
