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1、绪言 众所周知,高锰铸钢奥氏体晶粒的大小随着浇注温度的变化而变化,从而影响机械性能。但如果在高锰钢液中添加铈镧合金,即使浇注温度不变,也能使奥氏体晶粒细化。 本组研究了以边角废钢料和锰铁为主要原材料,在高频电炉中熔化的高锰钢液中加入铈镧合金,使奥氏体晶粒细化后对机械性能的影响。 2、实验方法 2—1、试样的熔化:
1, Introduction As we all know, high manganese cast austenite grain size changes with the pouring temperature changes, thus affecting the mechanical properties. However, if the high-manganese steel fluid added cerium lanthanum alloy, even if the pouring temperature remains unchanged, but also make the austenite grain refinement. The group studied the corner scrap and ferromanganese as the main raw material, high-frequency electric furnace melting high manganese steel liquid added cerous lanthanum alloy, the austenite grain refinement after the mechanical properties. 2, experimental methods 2-1, the sample melt: