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Thermal simulating technology was adopted to study grain size and the precipitates distribution of CGHAZ for X80 pipeline steel with different welding condition.
采用热模拟技术研究了X80管线钢在不同焊接热循环条件下晶粒及第二相粒子的变化。
And the preparation technology was optimized by taking grain size distribution, grain fluidity, the ratio of finished product as evaluation index.
以颗粒粒径分布、流动性及成品率为评价指标，优选清胆颗粒制粒工艺。
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