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- W2377202273 abstract "A bright chromium coating was obtained by trivalent chromium plating in sulfate electrolyte.The effects of pH value,bath temperature,current density,heat treatment temperature on micro-hardness were investigated respectively.Surface of the chromium coating were characterized by X-ray diffraction(XRD) and scanning electron microscopy(SEM) respectively.When pH value,bath temperature,current density were 2.4,45 ℃,45 A/dm~2 respectively,the micro-hardness and friction coefficient of the chromium coating are 7 740 MPa and 0.816 respectively.Chromium coating were heated at 25 ℃,200 ℃,250 ℃,300 ℃ and 350 ℃ respectively,the micro-hardness of chromium coating is 7 740 MPa,8 750 MPa,9 010 MPa,9 250 MPa,9 450 MPa respectively.The increase of micro-hardness of chromium coating may be due to the change of chromium coating from amorphous state to crystalline state." @default.
- W2377202273 created "2016-06-24" @default.
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- W2377202273 date "2009-01-01" @default.
- W2377202273 modified "2023-09-25" @default.
- W2377202273 title "A Research on the Process and Coating Performance of Sulfate System Cr~(3+) Chromium Plating" @default.
- W2377202273 hasPublicationYear "2009" @default.
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