Results 11 to 20 of about 443 (180)

Effect of PWHT on properties of 485MPa tensile strength vessel steel [PDF]

MATEC Web of Conferences, 2018
Effect of Post-Welding Heat Treatment (PWHT) on properties of 485MPa tensile strength vessel steel was studied by changing carbon contents and parameters of heat treatment. The conclusions are: The strengths of vessel steel decrease after PWHT.
Xinyu Zhao, Yang Zou, Liye Qin, Yang Liu
doaj   +2 more sources

Effect of PWHT and Electrical Parameters on Austenitic Phase, Sigma Phase and Corrosion in Duplex Steels S32205

Engineering Reports
This study investigates the influence of post‐weld heat treatments (PWHT) at 450, 850°C and 1020°C on phase evolution and corrosion behavior in UNS S32205 duplex stainless steel welded with GMAW.
Sandra Chacón‐Fernández, José L. Meseguer‐Valdenebro, Andrea Peña Martín   +2 more
doaj   +2 more sources

High accuracy and efficiency calculation model for predicting the reduction of residual stress on large pressure vessels by ultrasonic impact surface treatment

Engineering Reports, Volume 5, Issue 11, November 2023., 2023
A full‐coverage impacting model is proposed to simulate the UIT process. The proposed full coverage impacting model can greatly improve the simulation precision and the calculation efficiency. A remarkable reduction in residual stress was achieved in the zone subjected to UIT.
Yun Luo, Wenchun Jiang, Qiang Zeng
wiley   +1 more source

[Retracted] Influence of Heat‐Treated and Vibratory‐Assisted Weld Joints on the Mechanical Properties of 304L SS Material

Journal of Nanomaterials, Volume 2022, Issue 1, 2022., 2022
Tensile and impact strengths of 304L SS stainless steel weldment prepared at different levels of heat treatments and with vibratory assistance were studied and compared with the conventional process of welding. The results reveal that the microstructures of weld joints after heat treatment and vibratory welded joints attained a fine grain structure ...
Muvvala Chinnam Naidu, K. T. Balaram Padal, Girma Eshete, Samson Jerold Samuel Chelladurai   +3 more
wiley   +1 more source

Microstructural Features, Tensile Properties, and Impact Toughness of Linear Friction Welded High‐Temperature Alloy Joints for Blisk Assembly Applications

Advances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022
The main objective of this investigation is to analyze the microstructure, tensile properties, and impact toughness of Ti6Al4V alloy joints developed using optimized parameters of linear friction welding (LFW) for gas turbine blisk assembly applications.
C. Mukundhan, P. Sivaraj, V. Balasubramanian, Tushar Sonar, Vijay Petley, Shweta Verma, Samson Jerold Samuel Chelladurai   +6 more
wiley   +1 more source

Effect of Repeated Weld Repairs on Microstructure and Mechanical Properties of Heat‐Affected Zone in CA6NM Stainless Steel

Advances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022
The low‐carbon martensitic stainless steel CA6NM is widely used in the impellers of hydroelectric and nuclear power units due to its advantages of high hardness, corrosion fatigue strength, and good fracture toughness. In order to analyze the number of repair welding times on the properties of heat‐affected zone (HAZ, the most unstable area of welded ...
Peng Liu, Jien Ma, Youtong Fang, Bowen Xu, Lin Qiu, Wei Liu   +5 more
wiley   +1 more source

Potentiodynamic Corrosion Behavior and Microstructural Characteristics of Pulsed CMT‐Welded AA2014‐T6 Aluminium Alloy Joints: Effect of PWHT

Advances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022
AA2014‐T6 is an Al‐Cu‐Mg‐based precipitation‐hardened aluminium alloy widely used in aerospace due to its high strength to weight ratio. This alloy is joined by a pulsed cold metal transfer (PCMT) arc welding process to overcome the high heat input related problems in gas metal arc welding (GMAW) such as a coarser dendritic structure in the fusion zone
A. Padma Rao, Manzoor Hadi, C. Rajendran, Sonar Tushar, Mikhail Ivanov, P. Senthil Kumar, V. Murali Krishna, Michele Fedel   +7 more
wiley   +1 more source

Mechanical Strengthening of Lightweight Aluminium Alloys through Friction Stir Process

Advances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022
The aerospace industries are focused on lightweighting with alloys having good tensile strength, fracture toughness, fatigue resistance, and corrosion resistance. The friction stir welding technology is one of the productive techniques in the aerospace industry to join such alloys with little ease.
P. Yogesh, Santaji Krishna Shinde, Shyamlal. C, R. Suresh kumar, Moti Lal Rinawa, G. Puthilibai, M. Sudhakar, Kassu Negash, Rajesh S, Chang Chuan Lee   +9 more
wiley   +1 more source

Metallographic Investigation on Postweld Heat‐Treated0.21%C‐1020 Steel Plates Joined by SMAW Method

Advances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022
This paper presents analysis and comparison into mechanical behaviour and microstructural attributes of postweld heat‐treated AISI 1020 (0.21%‐C) plates joined by the shielded metal arc welding (SMAW) process. The purpose of this work is to heat the welded samples uniformly so that a possible formation of austenite can be obtained, and hence, residual ...
Saurabh Dewangan, Senthil Kumaran Selvaraj, Karthikeyan B, Tezeta Moges Adane, Somnath Chattopadhyaya, Grzegorz Królczyk, Ramesh Raju, Sonar Tushar   +7 more
wiley   +1 more source

Creep Rupture Behavior in Dissimilar Weldment between FB2 and 30Cr1Mo1V Heat‐Resistant Steel

International Journal of Photoenergy, Volume 2021, Issue 1, 2021., 2021
Creep rupture behavior of dissimilar weldments between FB2 and 30Cr1Mo1V heat‐resistant steel by multipass welding at 783 K (510°C) under different stresses (260 to 420 MPa) was researched. The fitted creep rupture exponent is 14.53, and the 10,000 h extrapolating strength values predicted by the power law and Larson‐Miller parameter show good ...
Jiankun Xiong, Jianping Yang, Haiyan Zhao, Lin Yang, Yang Guo, Fuheng Nie, Dexing Xu, Liping Yu, Fenghong Cao, Weijie Yang   +9 more
wiley   +1 more source