Effect of laser metal deposition parameters on the characteristics of stellite 6 deposited layers on precipitation-hardened stainless steel

AE Pilehrood, A Mashhuriazar, AH Baghdadi, Z Sajuri… - Materials, 2021 - mdpi.com
Laser metal deposition (LMD) is one of the manufacturing processes in the industries, which
is used to enhance the properties of components besides producing and repairing important …

[HTML][HTML] Effects of process parameters on microstructure and mechanical properties of Al0. 5CoCrFeNi high entropy alloy thin sheets using pinless friction stir welding

H Moghanni, K Dehghani, A Shafiei - Journal of Materials Research and …, 2022 - Elsevier
The present study investigates the effects of welding procedure parameters on
microstructure and mechanical properties through pinless friction stir welding (PFSW) for …

[HTML][HTML] Effects of heat input on metallurgical behavior in HAZ of multi-pass and multi-layer welded IN-939 superalloy

A Mashhuriazar, CH Gur, Z Sajuri, H Omidvar - journal of materials research …, 2021 - Elsevier
The hot components of a gas turbine are susceptible to damage in the high-temperature
environment of turbine engine operation. Given that these components are relatively costly …

[HTML][HTML] In-service welding of X70 steel gas pipeline: Numerical and experimental investigations

M Vafaei, A Mashhuriazar, H Omidvar… - Journal of Materials …, 2023 - Elsevier
The in-service welding process is widely used to repair defective gas pipelines, which
allows the damaged section to be repaired without interrupting gas flow. In this way …

Investigation of the γ′ Precipitates Dissolution in a Ni-Based Superalloy During Stress-Free Short-Term Annealing at High Homologous Temperatures

Ł Rakoczy, M Grudzień-Rakoczy, F Hanning… - … Materials Transactions A, 2021 - Springer
The equiaxed Ni-based superalloy René 108 was subjected to short-term annealing at five
temperatures between 900° C and 1100° C. The phase composition, phase lattice …

Investigating the effects of repair welding on microstructure, mechanical properties, and corrosion behavior of IN-939 superalloy

A Mashhuriazar, M Badihehaghdam, CH Gur… - Journal of Materials …, 2023 - Springer
This study aimed to investigate the effects of tungsten inert gas (TIG) repair welding on
microstructure, mechanical properties, and corrosion resistance of Inconel 939. After …

An investigation of the effects of parameters on the development of nuggets and the tensile properties of IN-625 during resistance spot welding

A Mashhuriazar, SE Mirsalehi, K Moradi - Experimental Techniques, 2024 - Springer
A thermomechanical finite element (FE) model was used to examine the effects of resistance
spot welding (RSW) current intensity, time, and electrode force on the distribution of …

Effects on crack formation of additive manufactured Inconel 939 sheets during electron beam welding

J Raute, T Jokisch, M Biegler, M Rethmeier - Vacuum, 2022 - Elsevier
The potential of additive manufacturing for processing precipitation hardened nickel-base
superalloys, such as Inconel 939 is considerable, but in order to fully exploit this potential …

Microstructure and mechanical properties of laser welded and post-weld heat-treated K439B superalloy

LI Zheng, Z ZHANG, A WU, M ZHANG, K Ju… - … of Nonferrous Metals …, 2024 - Elsevier
Laser welding of the new nickel-based alloy K439B applied for engine turbine was carried
out. The effects of post-welding heat treatment (PWHT) on the microstructure and …

Hardness Prediction System for Multi-pass Weld Metal of Low-Alloy Steel Using Neural Network

L Yu, K Nishimoto, K Saida - Metallurgical and Materials Transactions A, 2022 - Springer
Multi-pass welds are subjected to various thermal cycles and have a complicated
microstructure distribution; therefore, defects can easily occur. To prevent the defects, it is …