Issue 90

RESEARCH

2 Bùi Anh Hoa, Le Hoang, Nguyen Cao Son: Study on the crystal- lographic orientation of ultra-low carbon steel by SEM- EBSD method

7 Nguyen Thi Thao, Duong Ngoc Binh, Tran Vu Diem Ngoc: A study on hydrolysis process for TiO₂ pigment using molten NaOH method

12 Trinh Van Trung, Hoàng Van Vuong, Do Kim Tranh: Embrittlement of 40Cr steels

19 Le Thai Hung, Le Van Son, Nguyen Tuan Huy, Hoang Nguyen Ky, Le Manh Cuong, Nguyen Van Dat, Nguyen Minh Thuyet: Microstructure and tensile strength evaluation of polypropylene matrix composite filament reinforced with titanium hydride powder by a single screw extruder for using in FDM 3D printing

23 Hoang Anh Tuan, Nguyen Hong Hai, Nguyen Huu Dung: The kinetics of the ausferrite transformation of austempered ductile iron with dual matrix structure

29 Nguyen Van Duc: Influence of amount of sigma phase on properties of duplex steel 2205

37 Tran Thi Xuan, Vu Dinh Toai: The cooling mechanism of aqueous poly vinyl pyrrolidone and poly alkylene glycol quenchants

45 Nguyen Thi Hoang Oanh: The investigation of microstructure and properties of in-situ Cu/TiC nanocomposite prepared by high energy ball milling and spark plasma sintering

51 Luong Thi Quynh Anh, Le Thanh Tan, Nguyen Van Dan: Effect of coating thickness on microwave absorbing ability of super-paramagnetic Zn_0.8Ni_0.2Fe₂O₄ ferrite nanoparticles