Austenite crystal boundary display method under condition of high-temperature deformation of medium-carbon microalloyed steel
An austenite grain boundary and high-temperature deformation technology, applied in the field of physical detection, can solve the problems of low efficiency and difficulty in displaying austenite grains of high-strength ship plate steel, and achieve the effects of easy operation, guaranteed product performance, and simple method
Inactive Publication Date: 2013-06-19
SHANGHAI UNIV
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The invention relates to an austenite crystal boundary display method under the condition of high-temperature deformation of medium-carbon microalloyed steel, and belongs to the technical field of physical detection. The method comprises the following steps: preparing a sample, immediately quenching after high-temperature deformation, coarsely grinding, finely grinding, polishing, and putting the polished sample into a corrodent at 45 DEG C, wherein in the corrodent formula comprises 60ml tap water, 1.2-1.6g of picric acid, 0.4-0.5g of paste shampoo, 0.04-0.06ml dimethylbenzene, 0.08-0.12ml of hydrochloric acid, 0.06-0.1ml of hydrofluoric acid and 8-10ml of copper chloride; corroding the sample for 1-2 minutes, taking out the corroded sample after the surface of the sample become dark, cleaning with alcohol, and drying, wherein original austenite crystals can be relatively clearly observed under a microscope. The austenite crystal boundary display method has the advantage that the problem that austenite crystals cannot be relatively clearly observed under the condition of high-temperature deformation of the medium-carbon microalloyed steel. The method is simple to implement and convenient to operate.
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Copper chloridePicric acid +10
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