本文介绍的是一种含铬钨较多的白口铸铁以及将其用作轧辊辊面材料的研制情况,取得的效果等。试验证明,高铬钨铸铁中的钨可以明显提高其Ms点;经过热处理可以降低合金中的残余奥氏体量;在厚度达60毫米的铸件截面上可获得均匀的较高硬度;530—550℃回火可使合金中残余奥氏作量降至最少,从而使硬度达到最高。 This article describes a white cast iron containing more chromium tungsten and its use as a roller roller surface material development, the results achieved. Tests show that tungsten in high-Cr-W cast iron can significantly increase its Ms point; the amount of retained austenite in the alloy can be reduced by heat treatment; a uniform high hardness can be obtained on a cross-section of castings up to a thickness of 60 mm; ℃ Tempering can make the amount of residual austenite in the alloy reduced to a minimum, so that the hardness reaches the highest.