http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Grain Refining Performance of Al-B Master Alloys with DifferentMicrostructures on Al-7Si Alloy
Tongmin Wang,Zongning Chen,Hongwang Fu,Tingju Li 대한금속·재료학회 2013 METALS AND MATERIALS International Vol.19 No.2
The improved halide salt route has been employed to produce Al-3B master alloys with different microstructures. The microstructural features of AlB2 particles exhibited different impacts on the grain refining response of Al-7Si alloy, evolving with the holding time after inoculation. Large blocky AlB2 particles sufferfrom an intense fading effect while strip-like particles are not effective enough at the 0.005 wt% B addition level. Among the various Al-3B master alloys, sample 1 containing fine, blocky AlB2 particles was revealed to be the most efficient in refining Al-7Si alloy. With inoculation of only 0.005%B of such alloy, the final grainsize of Al-7Si alloy can reach 238 μm. Its grain refining efficiency was more or less retained for holding times up to 60 min.