铜合金金相试样的制备是比较困难的。特别是采用机械抛光法制备硬度较低的紫铜及单相铜合金时,难度更大,而试样制备的质量往往关系到金相组织的正确判断,如试样抛光方法不当,使组织难以显示或出现假相,影响分析结果。经多年实践证明,某些铜及铜合金采用高压电解抛光较机械抛光法好,其不仅大大的缩短了制样时间, Preparation of copper alloy metallographic sample is more difficult. Especially when using mechanical polishing method to prepare copper and single-phase copper alloys with lower hardness, it is more difficult, and the quality of sample preparation often relates to the correct judgment of the microstructure, such as improper sample polishing method, Or false phase, affecting the analysis results. After many years of practice, some copper and copper alloys using high-pressure electrolytic polishing is better than mechanical polishing, which not only greatly shorten the sample preparation time,