Effect of Al Addition to Ni-Cr-Mo-B Gas Atomized Powder on Age Hardening
نویسندگان
چکیده
منابع مشابه
Nanoscale Cellular Structures at Phase Boundaries of Ni-Cr-Al-Ti and Ni-Cr-Mo-Al-Ti Superalloys
The microstructural evolution of Ni-20 pct Cr wires was studied during pack cementation where Al and Ti, with and without prior cementation with Mo, are deposited to the surface of the NiCr wires and subsequently homogenized in their volumes. Mo deposition promotes the formation of Kirkendall pores and subsequent co-deposition of Al and Ti creates a triple-layered diffusional coating on the wir...
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The steady-state creep rate of Ni-base metallic foams, with superalloy composition (in wt. pct) Ni7.8∼9.1Al (relative density, ρ = 2.5-2.6) and Ni-13.5∼16.6Cr-5.1∼8.9Al (ρ = 2.8∼3.0), was measured under a range of temperatures (680∼825°C) and applied stresses (0.1∼0.3 MPa), and compared with that of NiAl intermetallic foams (ρ = 5.3). The stress exponent and activation energy are within the exp...
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This paper shows cxpcrinicn~~~l results concerning thc lnartcnsitic transcormation and the transfor1nation-in(i~1cc(I plasticity undcr multinsial loading. The matcrial investigated is a Cr-Ni-Mo-Al-Ti steel, which is suhrnitlcd to :I y--)cr.' nlartcnsitic phasc: transformation undcr an applicd strcss. The specimens are thin tubes loadcd in ~cnsion-~orsion. The ~csts wcrc specially dcsigncd to p...
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Microelements concentrations of Al, Co, Cr, Li, Mo, Ni, Sb and Sr were determined in the milk of Croatian Coldblood mares by inductively coupled plasma-optical emission spectrometry. The total mean element contents in mares milk were (mg/kg): Al<10, Co<10, Cr 26.7, Li 4.35, Mo 11.0, Ni<10, Sb 70.1 and Sr 467. Variation of Li, Sb and Sr concentrations were found throughout the lactation stages (...
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The microstructure and mechanical properties of Fe-0.85Mo-Ni powder metallurgy (P/M) steels were investigated as a function of sintered density. A quantitative analysis of microstructure was correlated with tensile and fatigue behavior to understand the influence of pore size, shape, and distribution on mechanical behavior. Tensile strength, Young’s modulus, strain-to-failure, and fatigue stren...
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ژورنال
عنوان ژورنال: Journal of the Japan Society of Powder and Powder Metallurgy
سال: 2017
ISSN: 0532-8799,1880-9014
DOI: 10.2497/jjspm.64.631