精密铸造304L不锈钢晶粒度检测方法研究
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摘要
对于精密铸造304L不锈钢晶粒度检测方法的研究,根据金相检测的基本步骤,从样品制备、腐蚀到晶粒度测量分别进行方法研究,其中腐蚀液的选取与金相组织评价是课题的关键。在腐蚀液的调研和验证方面进行了大量工作,最终确定了腐蚀液的配方和操作方法,并对不锈钢晶粒度进行了测定。方法精密度达到5. 25%。
Research of grain size test for Precision cast 304L stainless steel, base on the metallographic test steps,research the preparation of the sample, etching and measurment of grain size, the etching solution and the judgment of the metallographic form are the key of the research. Most of the work is about the survey and verify of etching,finally defined the etching method, and then measured the grain size of the stainless steel. The precision of this method can reach to 5. 25 %.
Research of grain size test for Precision cast 304L stainless steel, base on the metallographic test steps,research the preparation of the sample, etching and measurment of grain size, the etching solution and the judgment of the metallographic form are the key of the research. Most of the work is about the survey and verify of etching,finally defined the etching method, and then measured the grain size of the stainless steel. The precision of this method can reach to 5. 25 %.
引文
[1] GB/T 6394金属平均晶粒度的测定.
[2] GB/T 14999. 7高温合金铸件晶粒度、一次枝晶间距和显微疏松的测定方法.
[3] YB77-27钢铁的晶粒度评定.
[4] ISO643-2003钢表现晶粒度的显微金相的测定法.
[5] JIS-G0551-1998钢的奥氏体晶粒度测定法.
[2] GB/T 14999. 7高温合金铸件晶粒度、一次枝晶间距和显微疏松的测定方法.
[3] YB77-27钢铁的晶粒度评定.
[4] ISO643-2003钢表现晶粒度的显微金相的测定法.
[5] JIS-G0551-1998钢的奥氏体晶粒度测定法.