439 Ferritic Stainless Steel 铁素体不锈钢
When the aluminum content increases, the grain size of cold-rolled annealed panel becomes small, but the hardness, yield strength and tensile strength of stainless steel 439 increase.
随着439不锈钢合金成分中铝含量的增加，冷轧退火板的晶粒尺寸较小，硬度、屈服强度和抗拉强度升高。
The results show that the alloying aluminum can promote the recrystallization and refine grain of stainless steel 439.
结果表明，铝能促进439不锈钢的回复再结晶，细化晶粒。
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