gray cast iron

(1) Fatigue test of ordinary HT250 lifting Faraday compression The lifting diagram of tension compression fatigue limit of ordinary HT250

The tension compression fatigue fracture morphology of low alloy HT250 with different surface roughness is shown in the figure. Figure

Results of tension compression fatigue test of low frequency gray cast iron Among the 8 samples of low-alloy HT250 low-frequency

The low magnification morphology of tensile fracture of three grades of gray cast iron is shown in Figure 1. It

The tensile strength of ordinary HT250 at room temperature is slightly lower than the strength calibrated by its brand, which

The eutectic morphology of three grades of gray cast iron samples is shown in the figure. Eutectic clusters in gray

The figure shows the graphite morphology and distribution of three grades of gray cast iron samples. It can be seen

The tension compression fatigue tests of three grades of gray cast iron are carried out on plg-100 high frequency fatigue

The low-frequency tension compression fatigue test of gray cast iron adopts MTS810 axial tension compression fatigue test machine. It uses

The tension compression fatigue test of gray cast iron mainly studies the effects of loading frequency and surface roughness on

The test materials are three grades of gray cast iron, namely ordinary HT250, low alloy HT250 and HT300, in which

Because the brake drum works in the harsh environment with strong friction and complex alternation of cold and heat. Therefore,

(1) The fatigue life curve of ordinary HT250 is shown in Figure 1. (2) The fatigue life curve of low

The gray cast iron cylinder body adopts the traditional horizontal pouring process, the sand core is dipped with coating respectively

The traditional method of high strength gray iron is to reduce the eutectic degree, to increase the austenite content and