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films increase and reach a maximum value at 5 m T and then decrease with the further increase in the magnetic field intensity. The high hardness was related to the N/Ti atomic ratio and to a well...Effect of Axial Magnetic Field on the Microstructure, Hardness and Wear Resistance of TiN Films Deposited by Arc Ion PlatingYan-Hui Zhao1,Wen-Jin Yang1,2,Chao-Qian Guo1,Yu-Qiu Chen1,Bao-Hai Yu1,Jin......
of Vickers hardness HV increase with the increase of the growth rate according to the relationship of HV=300.2v0.08, which could be attributed to the fined lamellar structure due to the high undercooling...:A Effect of growth rate on microstructures and hardness in directionally solidified Ti-46Al-8Nb alloy LIU Guo-huai, ZHANG Yuan, LI Xin-zhong, CHEN Rui-run, SU Yan-qing, GUO Jing-jie, FU Heng-zhi......
the preparation of specimen because of striking difference in hardness between nucleant particles and matrix, as shown in Figs.10(c) and (d). Fig.8 Macrostructures of 99.98% high purity... Performance comparison of AlTiC and AlTiB master alloys in grain refinement of commercial and high purity aluminum LI Jian-guo(李建国)1, HUANG Min(黄 敏)1, MA Mo(马 蓦)1, YE Wei(叶 炜)1, LIU Dong-yu(刘东雨)1......
and discussed. The results show that the grain of surface layer of Super304H stainless steel is refined with high density of dislocations or stacking faults by plastic deformation after shot peening.... Surface hardness is improved significantly and is more than twice the untreated specimen. Key words: Super304H; surface shot peening; severe plastic deformation layer; hardness 为降低煤耗,提高发电效率,减少环境污染,发展......
dimension of φ285 mm in the outer diameter, φ160 mm in the inner diameter and 120 mm in width and its surface hardness was tested. Finally the HSS roll was used in high speed wire rod mill. The test results show that a high and homogeneous hardness can obtain on the work surface of HSS rolls, the surface hardness is 63-65HRC and its variation is smaller than 2HRC. The impact toughness......
into a tough bonding metal matrix. This is due to their high hardness, low density and thermodynamic stability [19,20]. WC belongs to the group of advanced ceramic materials with great industrial... decreases further down to the heat affected zone (HAZ). Addition of WC particles increased the hardness by almost 3 times. The increase in hardness confirms the high wettability of WC in the melt pool......
Effect of ultrasonic field on particle distribution and hardness of SiCp/7085 composites WANG Kun1, JIANG Ripeng2, ZHANG Lihua1, LI Ruiqing2, LI Xiaoqian1 (1. School of Mechanical and Electrical... and ultrasound vibrations method, and the influence of ultrasonic vibration time and power on microstructure and Brinell hardness(HBS) of the composites was studied. The results show that mechanical......
, with unnotched sample). Consequently, the modified bainitic cast steel possesses good wear resistance under high impact. For both modified and unmodified bainitic cast steels, high hardness white...Influence of Re-Ti modification on the high impact wear resistance of high Si bainitic cast steelJin-feng Huang1), Hong-sheng Fang2), and Yan-kang Zheng2) 1) State Key Laboratory for Advanced Metals......
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, shows high hardness and excellent corrosion resistance, both of which are better than the values for untreated austenitic stainless steel. However, the nitrided layer suffers from some technical problems, including a low-load bearing capacity due to its shallow thickness, an abrupt hardness drop at the layer-core interface, a poor toughness of the layer due to its extremely high hardness......
