CAJ | 학술논문

用粉末治金法制备了钢纤维增强的Sn-Cu-Fe-WC基复合材料，研究了纤维含量对复合材料密度、抗拉强度、单位体积吸收能量值、断裂伸长率、弹性模量和硬度的影响。结果表明：随着纤维含量的增加，复合材料的其塑韧性略有降低，弹性模量基本保持不变。抗拉强度和硬度却随着纤维含量的增加而增大，在纤维含量的15％时抗拉强度达到最大值，随后抗拉强度和硬度又逐渐减小。可见：纤维含量太低不能充分发挥纤维在复合材料中增强效果，反而成为多余夹杂甚至成为缺陷源。但含量过高工艺上又不易实现，最佳的纤维含量应该为15％。
용분말치금법제비료강섬유증강적Sn-Cu-Fe-WC기복합재료，연구료섬유함량대복합재료밀도、항랍강도、단위체적흡수능량치、단렬신장솔、탄성모량화경도적영향。결과표명：수착섬유함량적증가，복합재료적기소인성략유강저，탄성모량기본보지불변。항랍강도화경도각수착섬유함량적증가이증대，재섬유함량적15％시항랍강도체도최대치，수후항랍강도화경도우축점감소。가견：섬유함량태저불능충분발휘섬유재복합재료중증강효과，반이성위다여협잡심지성위결함원。단함량과고공예상우불역실현，최가적섬유함량응해위15％。
The steel fiber reinforced Sn-Cu-Fe-WC materials are fabricated by using powder metal urgical processing technique. The impact of the fiber content on the density, tensile strength, and unit volume of absorbed energy, elongation at break, elas-tic modulus and hardness of the material composite is studide. The results show that with the increase of fiber content, its plas-tic toughness of decreases slightly, the elastic modulus is basical y unchanged, the tensile strength and hardness increase. And the tensile strength comes up to the maximum when the fiher content is 15%, then the tensile strength and hardness de-crease gradual y. lt can be seen that the fiber content is to low, it can’ t make ful use of the fiber in the composite material and becomes redundance and even the defect source. lf the content is too high, it is not easy to process it. The optimum fiber con-tent should be 15%.