CAJ | 학술논문

对SiC颗粒增强铝合金基梯度复合材料的锻造性能进行了实验研究，绘制了该材料的塑性图。结果表明：SiC颗粒增强铝合金基梯度复合材料能进行热塑性变形，在变形时，材料梯度层间界面无相对滑动，变形后基体仍保持连续，致密度有所提高；轴向梯度复合材料的变形符合最小层材料沿高度方向的变形差异较大，故这类材料的塑性图应采用径向应变来表示。
대SiC과립증강려합금기제도복합재료적단조성능진행료실험연구，회제료해재료적소성도。결과표명：SiC과립증강려합금기제도복합재료능진행열소성변형，재변형시，재료제도층간계면무상대활동，변형후기체잉보지련속，치밀도유소제고；축향제도복합재료적변형부합최소층재료연고도방향적변형차이교대，고저류재료적소성도응채용경향응변래표시。
Experimental study is made on forgeability of the aluminium alloy matrix gradient composites reinforced with SiC particles and diagram of forgeahility of the materials is obtained. The results show that relative sliding motion between the gradient boundary layers is not found, matrixes of aluminium alloy are continued, the specific density of the materials is increased in the process of hot plastic forming of axial gradient composites conforms with the law of minimum load, the true stress-strain curves of the composites are identical to that of the component with minimum stress in compressive forming process and the diagram of forgeability of the materials should be expressed hy radial strain because of non-homogeneous deformation in the hight direction.