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Effect of cobalt on chemical segregation and solution process in Re-containing single crystal superalloys WANG Wen-zhen(王文珍)1, 2, JIN Tao(金 涛)1, ZHAO Nai-ren(赵乃仁)1, WANG Zhi-hui(王志辉)1, SUN Xiao... 100039, China Received 28 July 2006; accepted 15 September 2006 Abstract: The effect of cobalt on chemical segregation and solution process in three nickel base single crystal superalloys......
) techniques and the residue after segregation roasting was characterized by chemical phase analysis method. A series of experiments were conducted to examine the mass ratio of activated carbon (AC... on the segregation roasting residue showed that the main phases of nickel compounds were nickel, nickel sulfide, nickel oxide and nickel silicate. The result of chemical phase analysis of nickel compounds......
J. Cent. South Univ. Technol. (2011) 18: 1917-1923 DOI: 10.1007/s11771-011-0923-z Lower fuel consumption model and air-flow segregation feeding system for sintering JIANG Yuan(江源)1, 2, HUANG Zhu... on raw materials of a certain steel works was built. An air-flow segregation feeding (ASF) experimental equipment was designed to simulate strand feeding process and calculate the lower fuel consumption......
Surface tension of molten Ni-(Cr, Co, W) alloys and segregation of elements XIAO Feng(肖 锋)1, LIU Lan-xiao(刘兰霄)1, YANG Ren-hui(杨仁辉)1, ZHAO Hong-kai(赵红凯)1, FANG Liang(方 亮)2, ZHANG Chi(张 弛)1 1.... The segregation of Cr, Co and W in alloy was calculated and analyzed using Butler’s equation. The results show a good agreement between measured and calculated data. The surface tension of molten Ni-(Cr......
and that the degree of segregation would be dependent on alloy composition, die design and processing parameters[8]. This SLS layer differs in chemical composition from the centre (or bulk... aging. It also reduces micro-segregation of elements in the aluminium matrix. The chemical analysis depth profiles of the main alloying elements determined using OES, as well as the hardness profiles......
Distribution and segregation of dissolved elements in pipeline slabJianhua Liu1), Yanping Bao1), Xian Dong1), Taiquan Li1), Yi Ren2), and Shuai Zhang2) 1) Metallurgical and Ecological Engineering...">The chemical composition in a cross section of a high grade pipeline slab was measured point by point (in a scale of 1 μm) using original position statistic distribution analysis (OPA). The result......
, 2006, 116/117: 1-8. [3] NOLL T, FRIEDRICH B, HUFSCHMIDT M, MODIGELL M, NOHN B, HARTMANN D. Evaluation and modelling of chemical segregation effects for thixoforming processing[J]. Advanced... alloy in the semi-solid die casting process[J]. Materials Science and Engineering A, 2007, 445/446: 20-30. [8] GOVENDER G, M?LLER H. Evaluation of surface chemical segregation of semi-solid metal......
Effect of aging treatment on irradiation-induced segregation of high Mn-Cr steel D. S. BAE1, S. P. LEE2, Y. R. CHO3, H. TAKAHASHI4 1. Department of Advanced Materials Engineering, Dong-Eui...: To investigate the effect of aging treatment on irradiation-induced segregation of high Mn-Cr steel, specimens for electron-beam irradiation were prepared from the high Mn-Cr austenitic steel which was solution......
Pretreatment study on chloridizing segregation and magnetic separation of low-grade nickel laterites LIU Wan-rong(刘婉蓉)1, LI Xin-hai(李新海)1, HU Qi-yang(胡启阳)1, WANG Zhi-xing(王志兴)1, GU Ke-zhuan(古可专)1, LI Jin-hui(李金辉)1, 2, ZHANG Lian-xin(张琏鑫)1 1. School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China; 2. School of Materials and Chemical......
: The solidification characteristics and the hot tearing susceptibility were investigated on two Ni-based superalloys for turbocharger turbine wheel, K418 and K419. The segregation behaviors of the alloying elements and the precipitation phases were also studied. The results show that the solidification behavior of K419 alloy is complicated when compared with K418 due to the interdendritic segregation......
