低金铸造合金的氯化物腐蚀

The chloride corrosion of low-gold casting alloys.

作者信息

Sarkar N K, Fuys R A, Stanford J W

出版信息

J Dent Res. 1979 Feb;58(2):568-75. doi: 10.1177/00220345790580020501.

DOI:10.1177/00220345790580020501

Abstract

Potentiodynamic polarization measurements have indicated that the so-called 'low-gold' casting alloys are characterized by decreased chloride corrosion resistance, when compared with ADA Type III and Type IV gold alloys. This decrease in chloride corrosion resistance results apparently from the presence of Ag-rich microsegregations with a possible minor contribution from Cu-rich segregations or precipitates.

摘要

动电位极化测量表明，与ADAⅢ型和Ⅳ型金合金相比，所谓的“低金”铸造合金的特点是耐氯化物腐蚀性降低。耐氯化物腐蚀性的这种降低显然是由于存在富银微偏析，富铜偏析或沉淀物可能也有较小影响。