Trong bài viết này chỉ tập trung đi sâu về nghiên cứu sự phát triển của vết nứt dựa trên tác dụng lực. Trong đó nghiên cứu này sử dụng tác dụng lực làm vết nứt hình thành và phát triển khác nhau. Cụ thể nghiên cứu tập trung vào các nội dung như sau: khảo sát cấu trúc tế vi vùng tiếp giáp Al/Cu, khảo sát sự phát triển của vết nứt. | JOURNAL OF TECHNICAL EDUCATION SCIENCE Ho Chi Minh City University of Technology and Education Website https ISSN 1859-1272 Email jte@ Research for the Development of Crack in Bimetal Al Cu Sheet Huu-Hai-Quan Nguyen 1 Hung-Tra Tran2 Thanh-Nhan Phan1 1Ho Chi Minh City University of Technology and Education Vietnam 2Faculty of Civil Engineering Nha Trang University Vietnam Corresponding author. Email nhhquan@ ARTICLE INFO ABSTRACT Received 8 3 2022 At present bonding two dissimilar metal materials is a major challenge for today s industries. Applying friction-stirring welding technology is also a Revised 17 3 2022 feasibility study but in order to evaluate the bond strength compared to the Accepted 25 4 2022 base material it is necessary to survey experiment evaluate to find out the advantages and disadvantages of this method. In this paper we only focus Published 28 4 2022 on studying the crack development based on force application. In which this study uses force to make cracks form and develop differently. KEYWORDS Specifically the research focuses on the following contents surveying the Cracks in Al Cu Cu Al bimetal microstructure of the Al Cu junction investigating the crack growth. sheets Through this study we can see how the crack develops the material of the Bimetal Al Cu Cu Al sheet junction in addition to the results of the strength of the weld so that it can bonding be applied effectively most in practice. When this research experiment Grain structure in Al Cu Cu Al performs the crack at different positions according to the standard bimetal sheets applying force to the weld immediately shows that the crack is likely to Friction stir welding develop along with the interface between the two materials with the highest ratio and not branched. Thus this study found that the weld with the higher Aluminium alloy. breaking energy the higher the bonding strength of the two materials. Nghiên Cứu Sự Phát Triển Của Vết Nứt .