虽然国外已探索过电渣重熔铸造炮管的可行性,但是一般说来目前尚缺乏铸造和热处理状态电渣重熔炮钢的性能,特别是断裂韧性和抗疲劳裂纹扩展方面的资料,也缺乏可供性能评定的详细重熔工艺资料。澳大利亚国防部国防科学技术委员会材料研究实验室评定了铸造和热处理状态电渣重熔炮钢的性能和重熔条件对这些性能的影响。 Although foreign countries have explored the feasibility of ESR casting barrel, but generally speaking, there is currently no casting and heat treatment state ESR steel, especially the fracture toughness and fatigue crack growth information, but also Lack of detailed remelting process data for performance evaluation. Australian Defense Department of Defense Science and Technology Materials Research Laboratory evaluated the casting and heat treatment state ESR steel performance and remelting conditions on these properties.