In-situ micro nanometer TiC particle strengthened and toughened ordinary carbon steel and preparation method thereof
A technology for strengthening and toughening ordinary carbon steel, which is applied in the field of in-situ trace nano-TiC particles strengthening and toughening ordinary carbon steel and its preparation, and the preparation of high-performance structural steel. It can solve the problems of uneven suspension and dispersion, and achieve enhanced microstructure Thinning and toughening, promoting the effect of dispersion
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[0049] The present invention also provides a method for preparing ordinary carbon steel toughened by in-situ micro-nano TiC particles, which specifically includes the following steps:
[0050] 1. Prepare the preparation of the pre-dispersed master alloy containing in-situ nano-TiC particles, as follows:
[0051] Step 1. Put 4-8g of carbon nanotubes with a purity of 90wt.% into a ball milling jar, which contains ZrO with diameters of 5mm, 7mm, 11mm, 15mm, 20mm, and 22mm, respectively. 2 Balls, 4-10 of each, ZrO 2 The ball mass is 320-480g in total, the ball-to-material ratio is set to 80-133:1, and the carbon nanotubes are activated by high-speed ball milling at a speed of 200-350r / min for 2-4h with a planetary ball mill;
[0052] Step 2. Add 60-80g of 1000 mesh pure aluminum powder with a purity of 99.0wt.% and 16-24g of 300-1000 mesh titanium powder with a purity of 99.0wt.% to the ball mill tank after the activation treatment, and adjust the diameters in the tank respective...
Embodiment 1
[0117] 1. Preparation of in-situ micro-nano TiC particle pre-dispersed alloy, as follows:
[0118] Step 1, put 6g of carbon nanotubes with a purity of 90wt.% into a ball milling jar, which contains ZrO with diameters of 5mm, 7mm, 11mm, 15mm, 20mm, and 22mm respectively 2 Balls, 6 of each, ZrO 2 The mass of the balls is 480g in total, the ball-to-material ratio is set to 80:1, and the carbon nanotubes are activated by high-speed ball milling at a speed of 200r / min for 4h with a planetary ball mill;
[0119] Step 2. Add 90g of 1000-mesh pure aluminum powder with a purity of 99.0wt.% and 24g of 500-mesh titanium powder with a purity of 99.0wt.% to the ball mill tank after the activation treatment, and adjust the diameters in the tank to 5mm, 7mm and 11mm respectively , 15mm, 20mm, 22mm ZrO 2 10 balls each, ZrO 2 The mass of the ball is 800g in total, the ratio of ball to material is 8:1, powder and ZrO 2 The overall volume of the balls does not exceed 3 / 4 of the volume of the...
Embodiment 2
[0136] 1. Preparation of in-situ micro-nano TiC particle pre-dispersed alloy, as follows:
[0137] Step 1, put 8g of carbon nanotubes with a purity of 90wt.% into a ball milling jar, which contains ZrO with diameters of 5mm, 7mm, 11mm, 15mm, 20mm, and 22mm respectively 2 Balls, 10 of each, ZrO 2 The mass of the balls is 800g in total, the ball-to-material ratio is set to 100:1, and the carbon nanotubes are activated by high-speed ball milling at a speed of 350r / min for 2h with a planetary ball mill;
[0138] Step 2. Add 60g of 300 mesh pure aluminum powder with a purity of 99.0wt.% and 32g of 325 mesh titanium powder with a purity of 99.0wt.% to the ball mill tank after the activation treatment, and adjust the diameters in the tank to be 5mm, 7mm and 11mm respectively , 15mm, 20mm, 22mm ZrO 2 10 balls each, ZrO 2 The mass of the ball is 800g in total, the ratio of ball to material is 8:1, powder and ZrO 2 The overall volume of the balls does not exceed 3 / 4 of the volume of...
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