剪切变形对锻造B4Cp/Al复合材料晶粒尺寸和力学性能的影响

IF 2.4 4区材料科学 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Materials Testing Pub Date : 2023-09-18 DOI:10.1515/mt-2023-0135

Dongmei Gong, Feng Xu, Wenchao Shi, An Chen

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引用次数: 0

摘要

摘要:采用纯铝粉经自然氧化和球磨处理，制备片状铝粉，增强b4cp /Al复合材料。研究了剪切变形对带片状Al的b4cp /Al复合材料力学性能的影响。结果表明:球磨可使纯铝粉片状化，降低铝的晶粒尺寸，提高片状铝表面al2o3的体积分数;锻造有助于细化铝的晶粒尺寸。铝基体的流动有利于b4c颗粒的均匀分布。剪切变形可以细化晶粒尺寸，也可以破坏al2o3层，使其强度、硬度和相对密度增加。剪切变形后，b4cp /Al复合材料的极限抗拉强度为157.0 MPa。

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Effects of shear deformation on grain size and mechanical properties of the forged B₄Cp/Al composite

Abstract To flake aluminum powder and strengthen the B 4 Cp/Al composite, pure aluminum powder is natural oxidized and ball milled. The effect of shear deformation on mechanical properties of the forged B 4 Cp/Al composite with flaked Al are studied. The results show that ball milling can flake the pure aluminum powder, reduce grain size of aluminum, and increase the volume fraction of Al 2 O 3 on the surface of the flaked aluminum. The forging helps to refine the grain size of aluminum. The flow of aluminum matrix is helpful to the uniform distribution of the B 4 C particles. Shear deformation can refine grain size and also can break the Al 2 O 3 layer, with the increment of strength, hardness, and relative density. After shear deformation, the ultimate tensile strength of the B 4 Cp/Al composite is 157.0 MPa.

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来源期刊

Materials Testing 工程技术-材料科学：表征与测试

CiteScore

4.20

自引率

36.00%

发文量

165

审稿时长

4-8 weeks

期刊介绍： Materials Testing is a SCI-listed English language journal dealing with all aspects of material and component testing with a special focus on transfer between laboratory research into industrial application. The journal provides first-hand information on non-destructive, destructive, optical, physical and chemical test procedures. It contains exclusive articles which are peer-reviewed applying respectively high international quality criterions.