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Standard Reference Materials: Secondary Ferrite Number Reference Materials, GageCalibration and Assignment of Values

机译:标准参考材料:二次铁素体数参考材料,GageCalibration和值的赋值

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Ferrite Numbers (FN) were assigned to blocks of stainless steel that serve assecondary ferrite reference materials (RM 8480 and 8481) and these specimens were placed in the authors' Reference Materials inventory. These reference materials are used to calibrate several types of instruments used to measure the FN, which is proportional to the ferrite content in stainless steel welds. The ferrite content influences the physical and mechanical properties of stainless steel welds. This report documents the procedures used to measure the reference materials and the results of the authors' measurements. Appendices are included to document the authors' primary gage calibrations (Appendix A), the measurements made on the FN reference materials (Appendices B and C), and other supporting measurements made for the study (Appendix D).

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