FACTS

2 Lunar New Year message from Editor office

NEWS

3 VNFMSTA: Overview of activities in 2014 and toward to 2015

6 Nguyen Van Sua: The world pig iron output in 2014

8 Pham Chi Cuong: Looking back to last year to direct toward the future of steel industry

10 Nguyen Van Sua: Production and consumption of steels in January, 2015

12 “Nuclear materials engineering” - a new training program of the School of Materials and Science and Engineering, HUST

RESEARCH

25 Nguyen Van Tu, Trinh Van Trung, Nguyen Van Thanh: Preparation and characterization of activated carbon from rice husk by Na2CO3 and K2CO3 activation

30 Le Thi Chieu, Nguyen Duong Nam, Trieu Khuong: Influence of supply mode for nitrocarburizing gas on the microstruc- ture and the hardness of nitrocarburizing layer

34 Trinh Van Trung, Phung Thi To Hang: Temper embrittlement and influence of tempering temperature on microstructure and mechanical properties of C45 and 40Cr steels

41 Ngo Xuan Hung, Dang Van Hao, Le Thi Chieu: Reduction process of titanium metal from Vietnam’s TiO2 by thermic method, using calcium and magnesium as reduction mixture

ENVIRONMENT

47 Nguyen Duc Khien: The key factors affecting the toxicity