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of the addition of 0.3%, 0.7%, 1.0%W (mole fraction) on the microstructure and mechanical properties of high-Nb TiAl alloy were studied. The results show that the W alloying doesn’t change the alloy solidification path, has no effect on the room temperature phase composition of high-Nb TiAl alloy. With the increase of W content, the segregation degree of Nb and Al element is enhanced......
of high-Nb TiAl alloy and its microstructure evolution[J]. Chinese Journal of Rare Metals, 2010, 34(5): 658-662. [12] KIM Y W. Microstructure evolution and mechanical properties of a forged gamma...;Mechanical properties of TiAl alloy rolling sheet at room and high temperature 2.2 显微组织 铸锭冶金Ti-45Al-7Nb-0.3W合金轧制板材的显微组织如图1所示.图1(a)和1(b)所示分别为板材RD-ND面和TD-ND面的金相显微组织,图1(c)和1(d)所示分别为其对应的SEM显微组织.由图1......
Fatigue small crack growth threshold determination of a high-Nb TiAl alloy at different temperatures by in-situ observationMin Zhang1,Xi-ping Song1,Long Yu1,Hong-liang Li1,Ze-hui Jiao2,Hui-chen Yu21...:The purpose of this paper is to estimate the fatigue crack growth threshold of a high-Nb TiAl alloy at the different temperatures based on scanning......
Ziyang, HE Yue-hui. Investigations on processing powder metallurgical high-Nb TiAl alloy sheets [J]. Intermetallics, 2014, 55: 80-89. [3] ZHENG De-shuang, CHEN Rui-run, MA Teng-fei, DING Hong-sheng, SU... scales of the HOC alloy. Thus, severe spallation of the oxide scales occurs. Diffusion is involved in the high temperature oxidation of the TiAl alloys: one is the internal diffusion of oxygen atoms......
Determination of stacking fault energies in a high-Nb TiAl alloy at 298 K and 1273 KSONG Xiping, CAO Lin, WANG Yanli, LIN Junpin, and CHEN Guoliang摘 要:<正> The stacking fault energies of Ti-46Al-8.5Nb-0.2W alloy at 298 K and 1273 K were determined. The principle for the determination of the stacking fault energies is based on the fact......
Determination of stacking fault energies in a high-Nb TiAl alloy at 298 K and 1273 KXiping Song, Lin Cao, Yanli Wang, Junpin Lin and Guoliang Chen1) State Key Laboratory for Advanced Metals...="ChDivSummary" name="ChDivSummary"><正> The stacking fault energies of Ti-46Al-8.5Nb-0.2W alloy at 298 K and 1273 K were determined. The principle for the determination of the stacking fault......
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: TG31 收稿日期:2000-05-09 Canned-forging process of TiAl based alloy Abstract: The canned-forging process of a TiAl based alloy with a height-to-diameter ratio of 2... improved. Keyword: TiAl alloy; canned-forging; microstructure; Received: 2000-05-09 TiAl基合金被认为是一种具有发展前途的高温结构材料 [1,2] . 经过近20年的研究, TiAl......
of fabrication process on microstructure of high Nb containing TiAl alloy[J]. Journal of Alloys and Compounds, 2008, 458(1/2): 313-317. [9] 赵丽利, 林均品, 王艳丽, 等. Ti50Al和Ti45A18Nb合金高温初期氧化行为[J]. 金属学报, 2008, 44..., 11(6): 1055-1058. [11] 缪家士, 林均品, 王艳丽, 等. 高铌钛铝基合金板材的高温包套轧制[J]. 稀有金属材料与工程, 2004, 33(4): 436-438.MIAO Jia-shi, LIN Jun-pin, WANG Yan-li, et al. High temperature pack rolling of a high-Nb TiAl alloy......
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