A new device for determining hydrogen concentrations in aluminium alloys has recently been developed. This new device is based on a calcium zirconate electrochemical sensor and offers the foundryman a quantitative device that is easy to use and gives accurate and reliable results in a relatively short space of time. This paper will detail the experiences from foundry trials and compare the performance of the new device with other qualitative and quantitative devices commonly used today to assess hydrogen concentration. The potential advantages offered by the new device compared to conventional techniques are discussed.
展开▼
