工具钢和轴承钢 用标准图谱法评定碳化物分布的显微照相法

[中文适用范围]： 规定了评估碳含量在 0.1% 到 1.5% 之间且合金元素总含量小于或等于 5% 的钢的方法。 对于其他钢材采用本方法应经特殊协议。 包含原理、取样、样品制备、碳化物分布评估、结果表达和测试报告。 附件提供了参考显微照片。 [外文原描述]： Specifies a method for assessing steels with C levels between 0,1 % and 1,5 % and a total content of alloy elements less than or equal to 5 %. The use of this method for other steels shall be subject to special agreement. Contains principles, sampling, preparation of samples, assessment of the distribution of carbides, expression of results and test report. An annex gives reference photomicrographs.