Le Van Thoai, Nguyen Minh Tan, Nguyen Van Nhat and Nguyen Thanh Phu 2022. RESEARCH ON EFFECTS OF ADDITIONAL MATERIAL, WELDING TECHNOLOGY PARAMETERS ON SIZE, MICROSTRUCTURE AND CHEMICAL COMPOSITION OF WELDING IN SAW TECHNOLOGY WITH ADDITIONAL METAL POWDER. UTEHY Journal of Science and Technology. 31, (Mar. 2022), 77-83.