scholarly journals Effect of Thermo-Mechanical Treatment on the Microstructure and Tensile Properties of the Fe-22Cr-5Al-0.1Y Alloy

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5696
Author(s):  
Hongyan Che ◽  
Yazhong Zhai ◽  
Yingjie Yan ◽  
Yongqing Chen ◽  
Wei Qin ◽  
...  
Keyword(s):  
Powder Metallurgy ◽  
Mechanical Treatment ◽  
Oxide Dispersion Strengthened ◽  
Fusion Reactors ◽  
Oxide Dispersion ◽  
Grain Sizes ◽  
Powder Metallurgy Process ◽  
The Matrix ◽  
Thermo Mechanical Treatment ◽  
Metallurgy Process

Oxide dispersion strengthened ferritic steel is considered an important structural material in fusion reactors due to its excellent resistance to radiation and oxidation. Fine and dispersed oxides can be introduced into the matrix via the powder metallurgy process. In the present study, large grain sizes and prior particle boundaries (PPBs) formed in the FeCrAlY alloy prepared via powder metallurgy. Thermo-mechanical treatment was conducted on the FeCrAlY alloy. Results showed that microstructure was optimized: the average grain diameter decreased, the PPBs disappeared, and the distribution of oxides dispersed. Both ultimate tensile strength and elongation improved, especially the average elongation increased from 0.5% to 23%.

scholarly journals Mg-ZrO2 Nanocomposite: Relative Effect of Reinforcement Incorporation Technique

2016 ◽  
Vol 61 (3) ◽  
pp. 1521-1528 ◽  
Author(s):  
S.F. Hassan
Keyword(s):  
Powder Metallurgy ◽  
Relative Effect ◽  
Tensile Fracture ◽  
Ingot Metallurgy ◽  
Strengthening Effect ◽  
Magnesium Matrix ◽  
Hexagonal Close Packed ◽  
Powder Metallurgy Process ◽  
The Matrix ◽  
Metallurgy Process

Abstract In this study, ingot metallurgy and powder metallurgy processes were used to incorporate 0.2 and 0.7 vol% of nano-size ZrO2 particles reinforcement to develop magnesium nanocomposite. Both of the processing methods led to reasonably fair reinforcement distribution, substantial grain refinement and minimum porosity in the nanocomposites. Strengthening effect of nano-ZrO2 reinforcement in the magnesium matrix was greater when incorporated using the ingot metallurgy process. The matrix ductility and resistance to fracture were significantly improved due to the presence of nano-ZrO2 reinforcement when incorporated using the powder metallurgy process. Tensile fracture surfaces revealed that the less-ductile cleavage fracture mechanism of hexagonal close packed magnesium matrix has changed to more ductile mode due to the presence of nano-ZrO2 particles in all the processed nanocomposites.

Corrosion behaviour of closed cell magnesium foam with rare earth elements by powder metallurgy process

2020 ◽  
Author(s):  
Sivashankari Palaniswamy ◽  
Krishnamoorthy Arunagiri ◽  
S. Prakash
Keyword(s):  
Rare Earth ◽  
Powder Metallurgy ◽  
Rare Earth Elements ◽  
Corrosion Behaviour ◽  
Powder Metallurgy Process ◽  
Closed Cell ◽  
Metallurgy Process

Corrigendum to “Abnormal twinning behaviors in ZK60 alloy by powder metallurgy process” [Mater. Sci. Eng., A 779 (2020) 139145]

2021 ◽  
Vol 805 ◽  
pp. 140799
Author(s):  
Lei Zhao ◽  
Mengna Zhang ◽  
Zihan Yu ◽  
Guojun Ma ◽  
Bin Ma ◽  
...  
Keyword(s):  
Powder Metallurgy ◽  
Powder Metallurgy Process ◽  
Zk60 Alloy ◽  
Metallurgy Process

Compressive strength and energy absorption of magnesium foam with REE by powder metallurgy process

2020 ◽  
Author(s):  
Sivashankari Palaniswamy ◽  
Krishnamoorthy Arunagiri ◽  
Prakash Subramaniam
Keyword(s):  
Compressive Strength ◽  
Powder Metallurgy ◽  
Energy Absorption ◽  
Powder Metallurgy Process ◽  
Metallurgy Process

scholarly journals Kinetic Analysis of Solid-State Formation of Mg2Si by Powder Metallurgy Process

2011 ◽  
Vol 37 (6) ◽  
pp. 321-325
Author(s):  
Bin SUN ◽  
Shufeng LI ◽  
Hisashi IMAI ◽  
Junko UMEDA ◽  
Katsuyoshi KONDOH
Keyword(s):  
Powder Metallurgy ◽  
Solid State ◽  
Kinetic Analysis ◽  
State Formation ◽  
Powder Metallurgy Process ◽  
Metallurgy Process

Analysis of powder metallurgy process parameters for mechanical properties of sintered Fe–Cr–Mo alloy steel

2016 ◽  
Vol 32 (5) ◽  
pp. 537-541 ◽  
Author(s):  
Sandeep Chauhan ◽  
Vikas Verma ◽  
Ujjwal Prakash ◽  
P. C. Tewari ◽  
Dinesh Khanduja
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Alloy Steel ◽  
Process Parameters ◽  
Powder Metallurgy Process ◽  
Metallurgy Process

scholarly journals Interfacial reactions and wetting in Al-Mg sintered by powder metallurgy process

2016 ◽  
Author(s):  
Heny Faisal ◽  
Darminto ◽  
Triwikantoro ◽  
M. Zainuri
Keyword(s):  
Powder Metallurgy ◽  
Interfacial Reactions ◽  
Powder Metallurgy Process ◽  
Metallurgy Process

scholarly journals Microstructure of Oxide Dispersion Strengthened Steel With Cr Content Variation

2020 ◽  
Vol 21 (1) ◽  
pp. 35
Author(s):  
Marzuki Silalahi ◽  
Bernadus Bandriyana ◽  
Arbi Dimyati ◽  
Bambang Sugeng ◽  
Syahfandi Ahda ◽  
...  
Keyword(s):  
High Temperature ◽  
Phase Distribution ◽  
Oxide Dispersion Strengthened ◽  
High Energy ◽  
Oxide Dispersion ◽  
X Ray ◽  
Hardness Tester ◽  
Cr Content ◽  
Ods Steel ◽  
The Matrix

Microstructure and phase distribution of innovative Oxide Dispersion Strengthened (ODS) steel based on Fe-Cr-ZrO2 particularly for application at high temperature reactor with variation of Cr content was analysed. The alloy was synthesized with Cr composition variation of  15, 20 and 25 wt.% Cr, while zirconia dispersoid kept constant at 0.50 wt.%. The samples was synthesized by mechanical alloying comprising of high energy milling for 3 hours followed by vibrated compression with iso-static load at 20 ton. The final consolidation was performed via sintering process for 4 minutes using the Arc Plasma Sintering (APS) technique, a new method developed in BATAN especially for synthesizing high temperature materials. The samples were then characterized by means of scanning electron microscopy (SEM) with energy dispersed X-ray (EDX) analysis capability and X-ray diffraction. The mechanical property of hardness was measured using standard Vickers micro hardness tester to confirmed the microstructure analysis.  The results show that the microstructure of the ODS alloy samples in all variation of Cr content consists generally of cubic Fe-Cr matrix phase with small of porosity and  Zirconia particles distributed homogenously in and around the matrix grains. The achievable hardness was between 142 and 184 HVN dependent consistently on Cr content in which Cr element may cause grain refining that in turn increase the hardness.

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