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containing a mixed powder that serves as a source of the coatings forming element. The phase composition of the diffusion layer obtained depends on the activity of the Al during the pack aluminization processing. In this work, the proportion of Al to special additive powder in the pack and the treatment temperature are adjusted to achieve the desired surface composition of aluminized layer......
Fatigue properties of pack ply-rolling Ti-6Al-4V alloy sheets HONG Quan(洪权), YANG Guan-jun(杨冠军), ZHAO Yong-qing(赵永庆), QI Yun-lian(戚运莲), GUO Ping(郭萍) Northwest Institute for Nonferrous...; Abstract: The influence of pack ply-rolling process and heat-treatment on the texture characteristics of Ti-6Al-4V alloy sheets was investigated......
parameter, and the Si which is used to form gaseous SiF2 in pack powder is always enough, then the gas flux of halide reaching on surface of Mo layer is a fixed value under the invariable partial... Morphology, structure and formation mechanism of silicide coating by pack cementation process XIAO Lai-rong(肖来荣), CAI Zhi-gang(蔡志刚), YI Dan-qing(易丹青), YING Lei(殷 磊),LIU Hui-qun(刘会群), HUANG Dao......
Formation of texture of Ni48Mn31Ga21 polycrystalline alloy by thermal simulation pack rolling technology LU Bin(卢 斌)1, WANG Hua-bin(王花宾)1, LIU Yan(刘 岩)2, LIU Ji-xuan(刘吉轩)1, WANG Hong-lei(王洪磊)1 1... simulation pack rolling technology, textures appear in polycrystalline Ni48Mn31Ga21 alloy, and big cracks can be avoided under large deformation ratio. The rolling process with few passes and strong......
of chromium coatings The pack mixture was composed of 45% (mass fraction) chromium powder (99.99% purity, 75 μm), 45% (mass fraction) Al2O3 (hard-burned) used as inert filler, 3% (mass fraction) NH4Cl...J. Cent. South Univ. Technol. (2010) 17: 1155-1162 DOI: 10.1007/s11771-010-0612-3 Microstructures and wear resistance of chromium coatings on P110 steel fabricated by pack cementation LIN Nai......
of Technology2. School of Materials Science and Engineering, Southwest Petroleum University摘 要:Semi-solid powder rolling is a strip manufacturing process, which combines powder rolling with semi-solid rolling in one step to prepare high-performance metallic strips. A total of 7050 aluminum alloy strips were prepared by semi-solid powder rolling......
siliconizing at first and aluminizing thereafter. Pack cementation siliconizing performed at 950℃ for 2, 4 and 6 hours in several powder mixtures of Si, Al2O3 and NH4Cl, then aluminum was diffused.... The advantages of this two stage modified coating is discussed. 关键词:aluminide; silicon; pack cementation; characterization; growth mechanism; [全文内容正在添加中] ......
Trans. Nonferrous Met. Soc. China 25(2015) 3181-3188 Densification process of 10%B4C-AA2024 matrix composite strips by semi-solid powder rolling Zhuo-qiang MO, Yun-zhong LIU, Hui-fang JIA, Min WU... Abstract: Semi-solid powder rolling (SSPR) is a novel strip manufacturing process, which includes the features of semi-solid rolling and powder rolling. In this work, densification process and deformation......
Hot Deformation Mechanism and Ring Rolling Behavior of Powder Metallurgy Ti2AlNb IntermetallicsZheng-Guan Lu1,2,Jie Wu1,Rui-Peng Guo1,3,Lei Xu1,Rui Yang11. Institute of Metal Research, Chinese...="ChDivSummary" name="ChDivSummary">Powder metallurgy(PM) Ti–22Al–24Nb–0.5Mo(at.%) alloys were prepared by hot isostatic pressing. In order to study the feasibility of PM + ring rolling combined process......
Finite element polycrystal model simulation of cold rolling textures in deformation processed two-phase Nb/Al metal-metal composites CHEN Li-qing(陈礼清)1, 2, KANETAKE Naoyuki2 (1. Institute of Metal... model (FEPM) was extended and applied to simulate the development of the cold rolling textures of matrix aluminum in deformation processed two-phase 10% and 20%Nb/Al(in volume fraction) metal-metal......
