【摘 要】
：
Semi-solid casting of M2 high speed steel ingots was investigated by inclined slope pre-crystallization method.Effects of casting temperature and slope length on the microstructure of M2 HSS ingots were investigated.M2 cast ingots of non-dendritic primary
【机 构】
：
State Key Laboratory for Fabrication and Process of Nonferrous Metals,General Research Institute for
【出 处】
：
武汉理工大学学报(材料科学版)(英文版)
论文部分内容阅读
Semi-solid casting of M2 high speed steel ingots was investigated by inclined slope pre-crystallization method.Effects of casting temperature and slope length on the microstructure of M2 HSS ingots were investigated.M2 cast ingots of non-dendritic primary austenite and fine eutectic le-deburite network carbide structure were obtained,with the casting temperature,slope length and angle of 1480℃,500 mm and 60°respectively.Meanwhile,the microstructure of cast samples was quan-titatively assessed by Image tool software.Results show that optimum mean equivalent diameter of primary austenite crystal grain is 50.8μm,shape factor is 0.83,and mean thickness of network carbide is 5.21μm.
其他文献
A new method of recycling aluminum and iron in boiler slag derived from plants that use coal as fuel was presented.The new method can integrate efficient extraction and reuse of the leached pellets together.An elemental analysis of aqueous solutions leach
The microstructure and mechanical properties of rapidly solidified Al-Cr alloys were investigated by XRD,TEM and microhardness testing instrument.The results indicate that the matrix of rapidly solidified Al-Cr alloys isα-Al solid solution when the Cr con
The piezomagnetic properties of rapidly quenched Fe73.5Cu1Nb3Si13.5B9 alloy strips were investigated in as-quenched state and after annealing for 2 h in vacuum in the temperature range of 100-300 ℃. The impedance of amorphous strips increases with frequen
The aging behavior of polyurethane adhesive in medium was investigated and compared by means of scanning electronic microscopy(SEM),infrared spectroscopy(IR),interface analysis and shearing strength test.The experimental results show that the shear streng