【摘 要】
：
钢结硬质合金是介于工具钢及硬质合金之间的一种新型工模具材料。对其显微组织、夹杂物、晶粒度及缺陷的鉴别,目前尚无统一方法。为了配合钢结硬质合金生产与研究,本文对GT3
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钢结硬质合金是介于工具钢及硬质合金之间的一种新型工模具材料。对其显微组织、夹杂物、晶粒度及缺陷的鉴别,目前尚无统一方法。为了配合钢结硬质合金生产与研究,本文对GT35、R5、R8、Ti等牌号的钢结合金的显微组织进行了观察,摸索了一种鉴别测试方法,可供检验钢结硬质合金显微组织及缺陷时参考。试样的制备 1 取样与磨制将被检件敲断,制取金相试样,先在60～80目绿
Steel bonded carbide is between the tool steel and carbide between a new type of mold material. There is no uniform method for the identification of microstructure, inclusions, grain size and defects. In order to cooperate with the production and research of cemented carbide, this paper observed the microstructure of GT35, R5, R8, Ti and other grades of steel, and explored an identification test method for testing the hardness of cemented carbide Microstructure and defect reference. Sample Preparation 1 Sampling and grinding will be cut off the test piece, the preparation of the metallographic sample, first in the 60 to 80 mesh green
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