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, China) Abstract: Ti-Al alloy sheets were fabricated successfully by element powder cold roll forming and reactive synthesis. The size and relative density of sheet bars were 500mm×230mm×1.5mm, 85.9... and the sintering temperature. Key words: Ti-Al alloy; element powder; cold roll; vacuum sinter; sheet Ti-Al基合金具有密度低(3.9g/cm3), 弹性模量高(160~180GPa), 比强度高以及优异的高温力学性能, 是一种应用前景非常广阔的高温结构材料[1, 2]. 经过国内外研究者多年细致, 深......
). And then, the cold rolled sheets were heat treated at 400, 450, and 500 °C for 1 h followed by water quenching, respectively. The fabrication procedures and conditions of sheet samples are summarized...Trans. Nonferrous Met. Soc. China 24(2014) 2226-2231 Recrystallization behavior of cold rolled Al-Zn-Mg-Cu fabricated by twin roll casting Yun-Soo LEE, Won-Kyoung KIM, Dong-A JO, Cha-Yong LIM, Hyoung......
Enhanced mechanical stability of ultrafine grained steel through intercritical annealing cold rolled martensiteHuifang LAN,Xianghua LIU and Linxiu DU The State Key Laboratory of Rolling... hardening.Fine grained ferrite-martensite dual phase microstructure was obtained in a microalloyed steel and low carbon steels through intercritical annealing of the cold rolled martensite.The dual......
Microstructure,texture evolution and mechanical properties of cold rolled Ti-32.5Nb-6.8Zr-2.7Sn biomedical beta titanium alloyChunbo Lan,Yu Wu,Lili Guo,Huijuan Chen,Feng ChenJiangsu Key Laboratory... of dislocation density as well as an enhanced intensity of {001} 110α-fibertexture and a weakened intensity of {111} 112γ-fibertexture.The 90% cold rolled alloy exhibited a great potential to become a new......
高标准纯钛(Gr.2)斜轧穿孔管的冷加工技术 尉北玲1,李明强1,李明利1,马小菊1,李刚1,邓超1,曲恒磊1 (1.西部钛业有限责任公司,陕西,西安,710201) 摘要:介绍了工业纯钛(Gr.2)斜轧穿孔无缝管的生产试制情况,并对生产中遇到的问题进行分析,重点讨论斜轧管冷加工过程中Q值对管材内表面质量的影响及管材镗孔问题.结果表明:在进行斜轧管冷加工时,选取合适的Q值,并且在靠近成品的加工道次进行镗孔,不仅可以有效地去除内表面微裂纹,而且能够保证成品质量. 关键词:Gr.2纯钛管; 斜轧穿孔; 冷加工; Gr.2 pure titanium tube; cross rolled boring; cold processing; [全文内容正在添加中] ......
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, and the fracture mechanism changes into cleavage fracture for the poor ability of grain coordination plastic deformation. Key words: as rolled AZ31 alloy sheet; grain size; misorientation; plastic...布特征消失,主要沿TD方向以及与TD呈一定夹角的方向连续分布.而673K退火态板材,基面织构强度明显增大,达6.859,且呈不连续的弥散状分布. 图1 AZ31 镁合金板材不同退火态下的金相显微组织 Fig. 1 Optical microstructures of rolled AZ31 alloy sheets annealing at 473 K (a), 573......
Effect of electropulsing on anisotropy behaviour of cold-rolled commercially pure titanium sheet WANG Zhong-jin(王忠金), SONG Hui(宋 辉) School of Materials Science and Engineering, Harbin Institute...; Abstract: The specimens cut from the cold-rolled pure titanium sheet at 0?, 45? and 90? to the rolling direction were treated by high......
is decreased. It is beneficial to the control of sheet metal part’s dimensional accuracy. The obtained results show that the cold forming property of TC4 titanium alloy sheet after electropulsing treatment... and inter-EPT, the grain growth is not found. Fig.5 Optical microstructures of TC4 sheet: (a) Specimen A; (b) Specimen B; (c) Specimen C In order to change the microstructure of rolled sheet......
rolling by using orientation distributionfunction (ODF). In the twice cold rolled samples, the annealing texture comprises onlyfirst round of rolling. Accordingly both the once cold rolled sample...INFLUENCE OF COLD ROLLING TECHNOLOGY ON TEXTURE EVOLUTION OF IF STEEL X.H.Liu1,J.X.Li1,G.D.Wang1 (1.State Key Laboratory of Rolling & Automation, Northeastern University, Shenyang 110006, China......