本研究採用CM247LC鎳基超合金作為材料基底在添加不同比例的鋁元素(0.5wt.%,1wt.%,1.5wt.%,2wt.%)在真空感應熔煉爐(VIM) 中熔煉出CM247LC鎳基超合金添加鋁元素的鑄錠,經線切割後再利用單方向凝固鑄造(DS),使試棒呈現單方向晶,再進行三階段熱處理,熱處理條件為第一階段固溶熱處理條件為1260℃/2hr/Ac,第...
CM247LC Alloy Digest Copyright© ASM International® 2002
The aim of this research was to enhance the understanding by performing a series of stress corrosion exposures, at temperatures of 550, 500 and 450 掳C, on: CMSX-4, CM247LC DS and IN6203DS superalloys. After completing the exposures, the superalloys were ranked with respect to the ...
mechanismsand the yield strength of the experimental alloy are discussed. Introduction CM247LC, a directionally solidified (DS) Ni-base superalloy, has a wide application in land-based gas turbine blades due to its high creep-rupture strength, excellent surface stability together with good cast...
CM247LC is a Ni-base superalloy which can be used in directionally solidified (DS) or poly-crystalline (PX) forms, The alloy has a high γ′ volume fraction in the order of 67% in the fully heat treated condition [1]. The elevated temperature mechanical properties, oxidation and corrosion...
This paper studies yield surface and stress amplitude ellipse for Nickel-base single crystal (SC) superalloy CMSX-2 and directionally solidified (DS) super... T Hasebe,M Sakane,M Ohnami - 《Journal of the Society of Materials Science Japan》 被引量: 13发表: 1994年 A determination of the...
CM247LC-MS热处理后,室温下测得的极限抗拉强度(Rm)高于热处理后铸造和定向凝固(DS)的CM247LC,CM247LC-MS的极限拉伸强度与L-PBF、LPBF+HIP和LPBF+HIP+HT CM247LC相当,而伸长率(El)高于传统和L-PBF加工的CM247LC。 本合金在高温(900°C)下的屈服强度(Rp0.2)和伸长率(El)与铸造CM247LC相当,但低于DS CM...
This paper reports on the nickel-base superalloys: CMSX-4, CM247LC DS and IN6203DS subjected to 550 掳C hot corrosion exposures of durations ranging from 0 to 800 h, during which none of the superalloys developed ...
DS turbine blade is produced by pouring the molten CM247LC superalloy into an investment mullite mold. The simulated thermal profiles at three different locations of the DS casting have confirmed that the grain growth has proceeded from bottom to top, which is the direction inverse to the heat...
This paper reports on the nickel-base superalloys: CMSX-4, CM247LC DS and IN6203DS subjected to 550 degrees C hot corrosion exposures of durations ranging from 0 to 800 h, during which none of the superalloys developed a fully protective scale. The aim of the research was to identify ...