精选优质文档-倾情为你奉上钛对AlSi7Mg0.3合金力学性能的影响王汝耀鲁薇华摘要研究了钛对AlSi7Mg0.3合金金相组织和力学性能的影响。钛量超过0.12%,铝合金晶粒不再细化，而冲击韧度和伸长率急剧下降，抗拉强度缓慢上升，硬度变化甚微。力学性能如此变化可能是出现针状钛相造成的。AlSi7Mg0.3合金最佳钛量应在0.08%0.10%范围内。此时，铁含量接近0.18%，合金仍保持较高的冲击韧度和塑性。关键词：AlSi7Mg0.3合金最佳钛量力学性能细化作用The Effect of Titanium on the Mechanical Properties of AlSi7Mg0.3 AlloyWang RuyaoLu Weihua(China Textile University)ABSTRACT:The effect of titanium level on the microstructure and mechanical properties of AlSi7Mg0.3 alloy has been studied. A
