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Cholerny Spammer
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 Posted: Wed 20:48, 29 Dec 2010 Post subject: mbt schuhe günstig Erosion resistance of stainles |
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Erosion resistance of stainless steel, Corrosion
Erosion rate of erosion rate of 30 shock speed fast erosion rate mm/ammamm/a00.500.0400.00O. 5m/s0.470.0400.001.5m/s0.490.0610.0053.5m/s1.080.2530.095011Crl8Ni9Ti02OOCrl8Nil4Mo2Cu2. 3OOCr25Ni22M04.5Cu 2 Qiu Wei sand washed on stainless steel corrosion rate of pH = 1HCl50 ~ C } in the strike rate of 102 Lu 3 ● erosion rate erosion rate erosion rate mm / smm / amm 【/ amm/a00.500.040- ~ 00.50.460.0420.0081.50.650.0620.0223 .51.401. O00.65 ■ A ---- one hundred and eleven 101Crl8Ni9Ti2. OOCrl8Nl4MO2Cu2. 30OOCr25Ni22MO4.5Cu be seen from Table 2, corrosion of low-velocity red delete accounts for a smaller proportion, nearly close to the rest of the corrosion rate,[link widoczny dla zalogowanych], which is stirring fierce urge to wash stainless steel surface passivation and less damage on the surface film of the reason . But the high speed high proportion of erosion-corrosion,[link widoczny dla zalogowanych], due to the impact of the role of sand, so that the surface film of stainless steel suffered severe damage. Erosion-corrosion rate of the high speed the corrosion rate of less rest, can be approximated that the flow rate of mechanical erosion rate. This 1Crl8Ni9Ti, OOCr18Ni14Mo2Cu2, OOCr25Ni22Mo4.5Cu mechanical erosion rates of 0.9mm / a,[link widoczny dla zalogowanych], 0.96mm / a, 0.65ram,} a. As CCCr25Ni22Mo45Cu contains a high chromium nickel-molybdenum, the surface hardness and mechanical strength are higher than the other two stainless steel, so the erosion rate is low. Sand can be seen after the surface film of stainless steel protective effects are lost, this time a large proportion of mechanical erosion. This Laye and others in the steel of a coal-water media the same conclusion. One from three ... ... ... ...''... t, J; I Figure 2, three stainless steel after erosion AES Figure i § 92 of base 4 and anti-chemical corrosion tests of stainless steel in sand erosion corrosion morphology Look, 1Crl8Ni9Ti surface deep and large pit, and a serious roll. OOCr25Ni22Mot. 5Cu surface is smooth. After three stainless steel in sand 3.5m / s impact Auger etching rate is shown in Figure 3. Figure 3 shows erosion-corrosion of the surface film after the OOCr25Ni22Mo4.5Cu also lost a protective role at this time,[link widoczny dla zalogowanych], a large number of embedded membrane chloride Pat. 1Crl8Ni9Ti and OOCrl8Nil4Mo2Cu2 the surface film of a higher content of chloride ion. Plant ~ (a) 1Cr18Ni9Ti Nang (b) OOCrl8Nil4Mo2Cu2 loss plan to ask 36O (C) OOCr25Ni22Mo4.5Cu Figure 3 sand erosion-corrosion of stainless steel in the surface film after the composition of the chloride ion etching Fig. Conclusion button 【I, ●, ●,[link widoczny dla zalogowanych], 1. OOCr25Nj22Mo1.5Cu in the above medium with good resistance to erosion corrosion. 2. Erosion-corrosion, low erosion rate, the stainless steel surface film in the erosion-corrosion resistance plays a major role in O at high speed, mechanical properties play a major role. The better the mechanical properties of stainless steel, the high impact speed the better corrosion resistance to erosion. 3. Solid particles in the fluid towel will greatly accelerate the destruction of the surface film of stainless steel and accelerate the erosion-corrosion rate.
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