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采用金相、X射线衍射和电子探针等分析方法研究了3Cr28Ni8Si3双相耐热铸钢的σ相析出行为及其对冲击韧性的影响。
The phase transformation behavior of 3Cr28Ni8Si3 duplex heat-resistant cast steel and its effect on impact toughness were studied by means of metallography, X-ray diffraction and electron probe analysis.