试样表面粗糙度和表面清洗方式对M50NiL钢氧含量测定的影响  

Influence of Surface Roughness and Clean Method on Inspection Value of Oxygen Content for M50NiL Steel

作　　者：谢孝昌[1] 贺自强[1] 耿小颖[1] 李志明[1] 董翠[1] 

机构地区：[1]北京航空材料研究院,北京100095

出　　处：《材料工程》2011年第7期61-65,共5页Journal of Materials Engineering

摘　　要：研究了试样表面粗糙度和清洗方式对M50NiL钢中微量氧含量测定结果的影响。研究结果表明,试样表面粗糙度由Ra3.2降低至Ra0.8,再降低至Ra0.2时,氧含量测定值逐步降低并趋于稳定。其中,乙醇擦洗加丙酮超声波清洗是有效的表面清洗方式,经其处理后,表面粗糙度Ra3.2,Ra0.8,Ra0.2的氧含量测定值分别为6.65×10-6,5.95×10-6,5.55×10-6,氧含量测定值均稳定在(6±1)×10-6范围内,且不同表面粗糙度的氧含量测定值基本一致。而只用乙醚浸泡的试样,氧含量测定值较高;酸洗过的试样,氧含量测定值偏高,且随表面粗糙度的波动较大。The influence of surface roughness and clean method on the inspection value of oxygen content for M50NiL samples was investigated.The results indicated that the inspection values were step down and tend to steady when surface roughness decreased from Ra3.2 to Ra0.2,and the effective pre-procedure was cleaning by ethanol scrubbing adding acetone ultrasonic washing.The oxygen content inspection values of three kinds of surface roughness（Ra3.2,Ra0.8,Ra0.2） were 6.65×10-6,5.95×10-6,5.55×10-6.The values of different surface roughness samples being very similar were in the range of 5×10-6 and 7×10-6.The samples only disposing by aether obtained much higher oxygen content inspection values,and the acid etching samples showed a little higher oxygen content inspection values undulating with the surface roughness.

关 键 词：氧含量 表面粗糙度 清洗方式 

分 类 号：TG142.24[一般工业技术—材料科学与工程]