Search Results - "Ekrami, A."

The effect of cold-rolling prior to the inter-critical heat treatment on microstructure and mechanical properties of 4340 steel with ferrite – Martensite microstructure by Hosseinifar, F., Ekrami, A.

“…This study investigates the effect of cold rolling prior to inter-critical annealing on microstructure and mechanical properties of ferrite-martensite dual…”
Get full text

Microstructure evolution mechanism during post-bond heat treatment of transient liquid phase bonded wrought IN718 superalloy: An approach to fabricate boride-free joints by Pouranvari, M., Ekrami, A., Kokabi, A.H.

“…The microstructure of a transient liquid phase (TLP) bonded nickel base superalloy using B-containing filler metal after completion of isothermal…”
Get full text

Comparison of mechanical properties of martensite/ferrite and bainite/ferrite dual phase 4340 steels by Saeidi, N., Ekrami, A.

“…Different microstructures were produced by heat treatment of 4340 steel. These microstructures are bainite, martensite, ferrite–martensite and ferrite–bainite…”
Get full text

Influence of martensite volume fraction on tensile properties of triple phase ferrite–bainite–martensite steels by Zare, Ahmad, Ekrami, A.

“…► Triple phase microstructures were obtained by step-quenching heat treatment. ► Higher dislocation density in ferrite, adjacent to martensite, was observed by…”
Get full text

TLP bonding of cast IN718 nickel based superalloy: Process–microstructure–strength characteristics by Pouranvari, M., Ekrami, A., Kokabi, A.H.

“…This paper aims at addressing the microstructure–strength characteristics relationship during transient liquid phase (TLP) bonding of cast IN718 nickel based…”
Get full text

Solidification and solid state phenomena during TLP bonding of IN718 superalloy using Ni–Si–B ternary filler alloy by Pouranvari, M., Ekrami, A., Kokabi, A.H.

“…► Microstructure evolution during TLP bonding of IN718 using Ni–Si–B filler. ► Athermal solidification path is influenced by severe segregation of B and Si in…”
Get full text

Effect of ferrite volume fraction on work hardening behavior of high bainite dual phase (DP) steels by Akbarpour, Mohammad Reza, Ekrami, A.

“…AISI 4340 steel was heated to 910 °C for 1 h then directly transferred to 750 °C and intercritically annealed for different times to obtain different ferrite…”
Get full text

The effect of bainite morphology on the mechanical properties of a high bainite dual phase (HBDP) steel by Bakhtiari, R., Ekrami, A.

“…4340 steel bars were austenitized at 850 °C for 1 h followed by heating at 700 °C for 90 min and quenching into a salt bath at the temperature range of 300–450…”
Get full text

Effect of martensite volume fraction on work hardening behavior of triple phase (TP) steels by Zare, Ahmad, Ekrami, A.

“…► Work hardening of TP steels increased with increasing martensite content. ► The TP steels showed two-stage work hardening in term of Holloman equation. ► The…”
Get full text

Impact properties of tempered bainite–ferrite dual phase steels by Saeidi, N., Ekrami, A.

“…To improve both strength and toughness of AISI 4340 steel three microstructures, full bainite, bainite–ferrite and tempered bainite–ferrite, were produced by…”
Get full text

Effect of rare-earth elements and quenching wheel speed on the structure, mechanical and thermal properties of rapidly solidified AZ91 Mg melt-spun ribbons by Ekrami, A., Shahri, F., Mirak, A.

“…In this work, an attempt is made to study the effects of rare-earth elements as an additive (2wt% of Ce base misch-metal) and various quenching wheel speeds…”
Get full text

Effect of bonding temperature on microstructure development during TLP bonding of a nickel base superalloy by Pouranvari, M., Ekrami, A., Kokabi, A.H.

“…The effect of bonding temperature on microstructure of a transient liquid phase (TLP)-bonded GTD-111 nickel base superalloy, using a Ni–Si–B interlayer, was…”
Get full text

The effect of gap size on the microstructure and mechanical properties of the transient liquid phase bonded FSX-414 superalloy by Bakhtiari, R., Ekrami, A.

“…► TLP bonding of FSX-414 superalloy using the specimens with different gap sizes. ► Formation of nickel-rich and chromium-rich borides at the joint’s center. ►…”
Get full text

Redox dysregulation, immuno-inflammatory alterations and genetic variants of BDNF and MMP-9 in schizophrenia: Pathophysiological and phenotypic implications by Ali, Fahmy T, Abd El-Azeem, Eman M, Hamed, Marwa A, Ali, Mohamed A.M, Abd Al-Kader, Nour M, Hassan, Ekrami A

“…Abstract Background Although a clear mechanism underlying the pathophysiology of schizophrenia (SZ) remains elusive, oxidative stress, inflammatory syndrome…”
Get full text

High temperature mechanical properties of dual phase steels by Ekrami, A.

“…Dual phase steels with different martensite volume fraction and morphology were tensile tested at temperature range of 25–550 °C. Stress–strain curves of all…”
Get full text

The effect of TLP bonding temperature on microstructural and mechanical property of joints made using FSX-414 superalloy by Bakhtiari, R., Ekrami, A., Khan, T.I.

“…► The minimum required time to complete isothermal solidification at 1150°C. ► Liquid penetration at grain boundaries adjacent to the joints made at 1200°C. ►…”
Get full text

Transient liquid phase bonding of FSX-414 superalloy at the standard heat treatment condition by Bakhtiari, R., Ekrami, A.

“…The as-cast samples of FSX-414 Co-based superalloy were heat treated at the standard solution and aging heat treatment cycles. Specimens for joining were cut…”
Get full text

Microstructure development during transient liquid phase bonding of GTD-111 nickel-based superalloy by Pouranvari, M., Ekrami, A., Kokabi, A.H.

“…Transient liquid phase (TLP) bonding was used to join a nickel-based superalloy GTD-111 using a Ni–Si–B amorphous interlayer, MBF30. Bonding was carried out at…”
Get full text

Seaweed Sargassum aquifolium extract ameliorates cardiotoxicity induced by doxorubicin in rats by Samir, Rania, Hassan, Ekrami A., Saber, Abdullah A., Haneen, David S. A., Saleh, Eman M.

“…Doxorubicin (DOX) is a potent anticancer drug with adverse cardiotoxic effects. Alginates are multifunctional biopolymers and polyelectrolytes derived from the…”
Get full text

Effects of rolling reduction on mechanical properties anisotropy of commercially pure titanium by Nasiri-Abarbekoh, H., Ekrami, A., Ziaei-Moayyed, A.A., Shohani, M.

“…► Investigation into the effects of texture and microstructure evolution on the mechanical properties anisotropy of commercially pure titanium. ► In low levels…”
Get full text