Zhao, Yan Guan, Jian-jun Liu, Feng Liang, Ping Cheng, Cong-qian Zhao, Jie
Published in
Journal of Iron and Steel Research International
The interaction between Sn and passivated stainless steel was evaluated through an easy chromaticity approach. The microstructure of Fe–Sn intermetallics (IMCs) was observed, and their growth was inspected at different time after the interaction. The oxide film on stainless steel exposed in air locally delayed IMC growth, and the chemically passiva...
Ye, Neng-yong Cheng, Ming Zhang, Shi-hong Song, Hong-wu Zhou, Hong-wei
Published in
Journal of Iron and Steel Research International
Due to the improvement in fatigue strength of cold-rolled blades, the static recrystallization behavior of cold-rolled Inconel 718 alloy in the solid solution treatment was investigated with the methods of optical microscopy and electron backscattered diffraction. The effect of δ phase precipitation on the static recrystallization process was also ...
Zhou, Qi Li, Zhuang Wei, Zhan-shan Wu, Di Li, Jin-yu Shao, Zhen-yao
Published in
Journal of Iron and Steel Research International
Thermal simulations of Ti, Nb and V microalloyed steel were conducted using a thermomechanical simulator, and the microstructural evolution and the precipitation behavior during isothermal processing were analyzed. The results show that with increasing holding time, the microstructural constituents change from the martensite and bainitic ferrites t...
Xu, Mei Li, Hui Jiang, Rui-ting Tang, Di Jiang, Hai-tao Mi, Zhen-li
Published in
Journal of Iron and Steel Research International
The dynamic tensile behavior and deformation mechanism of ultra-high-strength dual-phase (UHS-DP1000) steel were investigated over a wide range of strain rates from 10−4 to 103 s−1. As the strain rate increases, the transition strain decreases from 2.73 to 1.92, and the martensite plastic deformation starts earlier. At strain rate of 10−4–0.5 s−1, ...
Song, Jin-zhu Tang, Wei Huang, Jie-wen Wang, Zi-kang Fan, Xin-min Wang, Ke-hong
Published in
Journal of Iron and Steel Research International
Microstructure and mechanical properties of additively manufactured TC4 alloys were investigated, following boronizing treatment. The treatment process was carried out at temperatures ranging from 950 to 1050 °C and held for 8–15 h. The microstructural features of fabricated boride layers were examined by optical microscopy. The phase compositions ...
Wei, He Chen, Yin-li Su, Lan Tang, Di
Published in
Journal of Iron and Steel Research International
The effects of loop-laying temperature and austenite deformation on the phase transformation behavior during continuous cooling, microstructure, and pearlite interlaminar spacing in 82B steels were investigated. Static and dynamic continuous cooling transformation (CCT) diagrams were measured with a Gleeble-3500 thermal simulator, and the mechanism...
Cheng, Jian Guo, Yue-hua Liu, Ming Shen, Hou-fa
Published in
Journal of Iron and Steel Research International
Influence of the N/C ratio on the microstructure and properties of new-generation high-strength weathering steels was investigated using calculation of phase diagram (CALPHAD) and experiments. The microstructures of weathering steels containing different N/C ratios were predicted by a CALPHAD approach, and only three phases were predicted in these ...
Zheng, Hai-zhong Guo, Sheng-hua Luo, Qin-hao Shu, Xiao-yong Li, Gui-fa
Published in
Journal of Iron and Steel Research International
Severe plastic deformation of Ti–10V–2Fe–3Al alloy in the surface region was caused by shot peening at air pressure of 0.6 MPa with processing time ranging from 1 to 45 min. The results showed that the thickness of surface deformation layer was proportional to the processing time, the microhardness of the shot-peened surface increased from 280 to 3...
Pang, Xiao-juan Li, Shu-suo Qin, Lu Pei, Yan-ling Gong, Sheng-kai
Published in
Journal of Iron and Steel Research International
Ni-based single crystal superalloy IC21 with different Ce contents was prepared by screw selection method, and Al–Si coatings were prepared by pack cementation. Cyclic oxidation and transient oxidation were carried out at 1150 °C to investigate the effect of Ce on the high-temperature oxidation behavior of Al–Si coatings. After cyclic oxidation at ...
Deng, Shuai Xu, An-jun Yin, Rui-yu
Published in
Journal of Iron and Steel Research International
The models for calculating the heat transfer in converters allow the accurate control of heat dissipation caused by downtime, and thus help increase scrap ratio and reduce energy consumption. ANSYS 17 was used to establish such a model to analyse the coupling law between the downtime and heat dissipation of the converter and the temperature drop of...
