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研究了稀土和锰对电热ZL102合金微观组织和力学性能的影响。结果表明,Mn可抑制长针状的β-Fe相,使部分针状铁相转变成骨骼状或汉字状的α-Fe相,但针状铁相仍存在;RE元素并不能使长针状的β-Fe相转变成α-Fe相,但它可以使长针状β-Fe相断裂变小;Mn和RE的复合使用可以有效改善铁相形貌,使针状铁相变为小块的骨骼状或汉字状。当加入1.1wt%的锰和0.4wt%的稀土时,合金的微观组织和力学性能同时达到最佳,合金的抗拉强度和伸长率分别达到151.46MPa和2.124%,与未添加稀土和锰合金相比,分别提高了14%和101%。
The effects of rare earth and manganese on the microstructure and mechanical properties of electrothermal ZL102 alloy were studied. The results showed that Mn could inhibit the long-acicular β-Fe phase and transform part of the acicular iron phase into skeletal or kink-shaped α-Fe phase, but the acicular iron phase still existed. The RE element did not change the long acicular Β-Fe phase transformed into α-Fe phase, but it can make the long needle-like β-Fe phase fracture smaller; Mn and RE combined use can effectively improve the iron phase morphology, the acicular iron phase into small pieces Skeletal or Chinese-shaped. When 1.1wt% manganese and 0.4wt% rare earth were added, the microstructure and mechanical properties of the alloy reached the optimum simultaneously. The tensile strength and elongation of the alloy reached 151.46MPa and 2.124% respectively. Compared with the non-added rare earth and manganese alloy Compared with 14% and 101% respectively.