Reduction of the heat treatment process for Al-based alloys by utilization of heat from the solidification process

摘要: Abstract This paper presents the results for reduction of heat treatment process duration by way a solution integrated with solidification as an economical aluminum-based castings. The so-called “novel during process” (NSTS) uses some from process. In turn, this would reduce production costs. effect NSTS on structure and mechanical properties 319 alloy has been investigated. study were compared well-established conventional (CST). Comparison studies showed that in similar or even higher than It was found at 510 °C 30 min delivered maximum metal matrix microhardness (i.e., 112 ± 4.4 HV25) required level Cu-enriched phases dissolution. performed gives UTS approximately 202 240 MPa 2 weeks natural aging artificial 200 °C 2 h, respectively. total cycle time is two times shorter which might be significant advantage. To meet industrial requirements could modified cooling casting few degrees below solidus temperature (after completion process) then reheating it to temperature. As consequence operation can done continuous manner, utilizing considerable amount Preliminary indicate temperature, prior entering furnace, influences castings’ response operation.