摘要
为修订金属布氏硬度试验方法国家标准,测定了不同试样厚度的布氏硬度值。结果表明,修订后的标准对试样厚度的要求规定为“至少为压痕深度的8倍”是可行的。同时,为了保证试验结果的准确性,无论是对布氏硬度值低的试样还是布氏硬度值高的试样,试验后都应保证试样背面无明显变形痕迹。
In order to revise national standard of Metallic Materials-Brinell Hardness Test, the Brinell hardness numbers of specimens with different thickness are determined. The results confirmed the feasibility of the revised national standard which requests the thickness of specimen should be 'at least eight times of the depth of indentation'. Meanwhile, in order to ensure the accuracy of measuring results, the back side of specimen should not have any obviously deformed mark. It is the same request either to the specimens with high Brinell hardness number or low Brinell hardness number.
出处
《物理测试》
CAS
2000年第2期30-33,共4页
Physics Examination and Testing
