Microstructural evolution and mechanical properties of bulk and porous low-cost Ti–Mo–Fe alloys produced by powder metallurgy

2021 ◽  
Vol 853 ◽  
pp. 156768 ◽  
Author(s):  
Shima Ehtemam-Haghighi ◽  
Hooyar Attar ◽  
Ilya V. Okulov ◽  
Matthew S. Dargusch ◽  
Damon Kent
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Microstructural Evolution ◽  
Low Cost ◽  
Fe Alloys

Microstructure and Mechanical Properties of Cu-Fe Alloys via Powder Metallurgy

2021 ◽  
Vol 1016 ◽  
pp. 1727-1732
Author(s):  
Chen Zeng Zhang ◽  
Cun Guang Chen ◽  
Tian Xing Lu ◽  
Pei Li ◽  
Fang Yang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Functional Materials ◽  
Shielding Effect ◽  
X Ray Diffraction ◽  
Microstructure Observation ◽  
Fe Content ◽  
Fe Alloys ◽  
Similar Good

Copper Ferro Alloys (CFAs) have an excellent shielding effect in the electromagnetic field, as well as the similar good conductivity and ductility with copper, and strong magnetism and toughness as analogous to iron. Consequently, it is considered to be novel structural and functional materials with huge development potential and wide application foreground. The influence of the content, size and distribution of Fe phase in the Cu matrix on the electromagnetic shielding property of CFAs is crucial. In the present study, CFAs with various Fe content were fabricated via powder metallurgy (P/M) combining with deformation processing. The microstructure, electrical conductivity, magnetic and mechanical properties of CFAs were investigated by optical microscopy (OM), scanning electron microscopy (SEM), X-Ray diffraction (XRD), and tensile test. The results indicated that P/M CFAs with the homogenous and fine in-situ Fe particles showed better comprehensive performance compared to those prepared by conventional casting. Based on the microstructure observation, mechanical properties were discussed.

Microstructural Evolution and Mechanical Properties of AZ91 and SiCp/AZ91 Magnesium Alloys upon Rapid Solidification/Powder Metallurgy Followed by Hot Extrusion

2010 ◽  
Vol 146-147 ◽  
pp. 734-737
Author(s):  
Hui Yu ◽  
Hua Shun Yu ◽  
Zhen Ya Zhang ◽  
Guang Hui Min ◽  
Cheng Chen
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Magnesium Alloys ◽  
Rapid Solidification ◽  
Microstructural Evolution ◽  
Hot Extrusion ◽  
Interface Debonding ◽  
Porosity Level ◽  
Az91 Magnesium ◽  
Sic Particulates

In this study, AZ91 and SiC particulates reinforced AZ91 (SiCp/AZ91) magnesium alloys were successfully fabricated using rapid solidification/powder metallurgy technique followed by hot extrusion. Microstructural evolution and mechanical properties of the monolithic AZ91 and SiCp/AZ91 magnesium alloys were evaluated. SiC particulates were well distributed with only few agglomerated particles. The porosity level and microhardness increased as SiCp content increased because the increased surface area of SiCp, harder ceramic phases and SiCp acted obstacles to the motion of dislocations. In addition, an increase in particulate reinforcement content was observed to decrease mechanical properties of the composite compared with the unreinforced counterpart due to increasing agglomerating regions and porosity, brittle interface debonding between matrix and SiCp.

Phase transition, microstructural evolution and mechanical properties of Ti-Nb-Fe alloys induced by Fe addition

2016 ◽  
Vol 97 ◽  
pp. 279-286 ◽  
Author(s):  
Shima Ehtemam-Haghighi ◽  
Yujing Liu ◽  
Guanghui Cao ◽  
Lai-Chang Zhang
Keyword(s):  
Mechanical Properties ◽  
Phase Transition ◽  
Microstructural Evolution ◽  
Fe Alloys ◽  
Fe Addition

Microstructural evolution and mechanical properties of carbon nanotubes–reinforced TZM composites synthesized by powder metallurgy

2020 ◽  
Vol 829 ◽  
pp. 154540
Author(s):  
Yong Wei ◽  
Lai–Ma Luo ◽  
Xiang Zan ◽  
Jiu–Peng Song ◽  
Xiao–Yong Zhu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Powder Metallurgy ◽  
Microstructural Evolution

scholarly journals Mechanical Properties of a Titanium Matrix Composite Reinforced with Low Cost Carbon Black via Powder Metallurgy Processing

2009 ◽  
Vol 50 (12) ◽  
pp. 2757-2762 ◽  
Author(s):  
Thotsaphon Threrujirapapong ◽  
Katsuyoshi Kondoh ◽  
Hisashi Imai ◽  
Junko Umeda ◽  
Bunshi Fugetsu
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Carbon Black ◽  
Matrix Composite ◽  
Low Cost ◽  
Titanium Matrix ◽  
Titanium Matrix Composite

Microstructure and Mechanical Properties of Ti-6Al-Mo-Fe Alloy Prepared by Powder Metallurgy

2010 ◽  
Vol 146-147 ◽  
pp. 1671-1674 ◽  
Author(s):  
Tian Guo Wang ◽  
Qun Qin ◽  
Dong Jian Zhou
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Yield Strength ◽  
Milling Time ◽  
High Yield ◽  
X Ray Diffraction ◽  
Β Phase ◽  
Powder Metallurgy Process ◽  
High Elongation ◽  
Fe Alloys

Ti-6Al-Mo-Fe alloys were prepared by blended elemental powder metallurgy process. In this paper, the mechanical properties and microstructure of Ti-6Al-Mo-Fe alloys sintered from the powders ball-milled for various periods of time were investigated by means of contrition behavior testing, X-ray diffraction, scanning electron microscopy. With an increase in ball milling time form 1h to 10h, the microstructure evolved into a fine β phase within the α matrix. For the Ti-6Al-Mo-Fe alloy, the yield strength and elongation increase as the milling time is prolonged. It was found that the bulk alloys made from the powders ball milled for 6 h exhibited relatively high elongation of 17.8% and high yield strength of 914 MPa.

Study about the Influence of Two-Steps Sintering (TTS) Route for an Alloy Based on Titanium

2018 ◽  
Vol 880 ◽  
pp. 256-261
Author(s):  
Cristina Ileana Pascu ◽  
Stefan Gheorghe ◽  
Daniela Florentina Tărâţă ◽  
Claudiu Nicolicescu ◽  
Cosmin Mihai Miriţoiu
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Titanium Hydride ◽  
Low Cost ◽  
Ti Alloy ◽  
Metallic Powders ◽  
Titanium Hydride Powder ◽  
Hydride Powder

This paper describes the influence of two-steps sintering regime temperatures concerning the final properties of titanium hydride based alloy obtaining by Two-Steps Sintering (TTS) route, which is a method that is part of the Powder Metallurgy (PM) technology. The initial titanium hydride powder has been mixed with some metallic powders as: Alumix, Mn, Zr, Sn and graphite was added in different proportions for improving the final mechanical properties. The Two-Steps Sintering (TTS) route have been applied for obtaining a low-cost Ti- alloy. The effect of the sintering regime temperatures on the height and diameter shrinkages and density for these alloys based on titanium hydride powder was studied

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