Explanipedia

Unexpected heterogeneous texture in laser beam powder bed fusion under fixed process parameters Open

Guanhong Chen, Xiaowei Wang, Xuqiong Yang, J. Y. Wang, Tianyu Zhang , et al. · 2025

Laser beam powder bed fusion (PBF-LB) can manipulate material properties through control of texture. However, current research suggests homogeneous texture distribution in PBF-LB materials. The lack of investigation into texture heterogene…

Effect of low-temperature gaseous carburization on mechanical and tribological properties of CoCrFeMnNi high-entropy alloy Open

Yawei Peng, Dong‐Hui Chen, Yao Yang, Han Duan, Jianming Gong · 2025

Response of laser power bed fusion manufactured austenitic stainless steel towards combined heat treatment and low-temperature thermochemical surface strengthening Open

Yajian Feng, Haifan Wang, Zhenxu Zhao, Dong‐Hui Chen, Yawei Peng , et al. · 2024

In this work, a combination of heat treatment (HT) and surface strengthening is explored to adjust the residual stress distribution in 316L stainless steel manufactured by laser powder bed fusion (L-PBF). Different HT in the range 750 °C–9…

Effect of Temperature, Vacuum Condition and Surface Roughness on Oxygen Boost Diffusion of Ti–6Al–4V Alloy Open

Yujie Xu, Yong Jiang, Jinyang Xie, Qingchen Xu, Fei Hao , et al. · 2024

Oxygen boost diffusion (OBD) is an effective technology for improving the surface hardness of titanium and its alloys. In this present paper, the effect of temperature, vacuum condition and surface roughness on oxygen boost diffusion of Ti…

Evolution of mechanical properties of ferrite and pearlite phases during spheroidization process and their relationship to the overall properties of low alloy steel Open

Yong Jiang, Jinyang Xie, Yujie Xu, Peiheng Qiao, Yilan Lu , et al. · 2024

Mechanical properties of ferrite-pearlite low alloy steel are strictly determined by the properties of ferrite and pearlite phases. In this present paper, the evolution of mechanical properties of ferrite and pearlite phases during spheroi…

Revealing the Crack Propagation Behavior of Weldment Under Cyclic Loadings by Combining Crystal Plasticity Finite Element and Xfem Open

Dewen Zhou, Xiaowei Wang, Heng Li, Zitong Kang, Tianyu Zhang , et al. · 2024

An Integrated Simulation Strategy for Guiding the Manufacture of Single-Crystal-Like Austenitic Stainless Steel Using Laser Powder Bed Fusion Open

Guanhong Chen, Xiaowei Wang, Xuqiong Yang, Xinyu Yang, Jiayuan Gu , et al. · 2024

Process-structure-property modeling for postbuild heat treatment of powder bed fusion Ti-6Al-4V Open

Jianxin Liu, Xinyu Yang, Xingzai Chai, Adrián D. Boccardo, Yefeng Chen , et al. · 2023

Postbuild heat treatment is an important component in optimized manufacturing processing for laser beam powder bed fusion (PBF-LB) Ti-6Al-4V. The development of predictive modeling, based on the understanding of the relationships between p…

Creep Damage Evolution and its Effect on the Carburisation Bahaviour for Hp40nb Alloy Open

Chengming Fuyang, Jianming Gong, Heng Li, Jinduo Liu, Wei Yan , et al. · 2023

Mechanical Properties of σ-Phase and Its Effect on the Mechanical Properties of Austenitic Stainless Steel Open

Peiheng Qiao, Jinyang Xie, Yong Jiang, Pengjie Tang, Bin Liang , et al. · 2022

In this present paper, the mechanical properties of σ-phase and its effect on the mechanical properties of 304H austenitic stainless steel after servicing for about 8 years at 680–720 °C were studied by nano-indentation test, uniaxial tens…

Creep lifetime prediction of 9% Cr martensitic heat-resistant steel based on ensemble learning method Open

Yumeng Tan, Xiaowei Wang, Zitong Kang, Fei Ye, Yefeng Chen , et al. · 2022

Creep lifetime prediction is critical for the design of high-temperature components. Due to creep lifetime being affected by many factors, its prediction with high accuracy is still challenging. The 9% Cr martensitic heat-resistant steel i…

On the corrosion cracking of austenitic stainless steel in molten solar salt: Experiments and modeling Open

Heng Li, Xiaowei Wang, Xiucheng Feng, Xinyu Yang, Jianqun Tang , et al. · 2022

Deformation mechanisms of selective laser melted 316L austenitic stainless steel in high temperature low cycle fatigue Open

Yefeng Chen, Xiaowei Wang, Jia‐Wei Shen, Yawei Peng, Yong Jiang , et al. · 2022

Study on the mechanical properties gradient in surface oxygen diffusion hardened layer of Ti6Al4V alloy Open

Fei Hao, Bojin Pan, Chi Zhang, Yong Jiang, Qingchen Xu , et al. · 2022

This paper studies the mechanical properties gradient in surface oxygen diffusion hardened (SODH) layer of Ti6Al4V alloy by four-point bending test, nano-indentation test and Vickers hardness measurement test. The relationships of hardness…

Electrochemical Study on the Impact of Nacl Impurity on Corrosion of Stainless Steel 316l in Molten Nitrate Salts for Thermal Energy Storage Open

Heng Li, Xiaowei Wang, Xiucheng Feng, Xinyu Yang, Jianqun Tang , et al. · 2022

Experimental Characterization and Yield Strength Model for Process-Structure-Property of Selective Laser Melted 316l Open

Yefeng Chen, Xiaowei Wang, Dong Li, Dewen Zhou, Jiang Yong , et al. · 2022

Mechanical Properties of Σ-Phase and its Effect on the Mechanical Properties of Austenitic Stainless Steel Open

Peiheng Qiao, Yujie Xu, Jiang Yong, Pengjie Tang, Bin Liang , et al. · 2022

Characterization of the cyclic softening and remaining creep behaviour of P92 steel weldment Open

Wei Zhang, Xiaowei Wang, Zitong Kang, Tianyu Zhang, Yong Jiang , et al. · 2021

Weldability and Damage Evaluations of Fresh-to-Aged Reformer Furnace Tubes Open

Chengming Fuyang, Yang Zhou, Bing Shao, Tianyu Zhang, Xiaofeng Guo , et al. · 2021

The microstructures and tensile properties of fresh and aged reformer furnace tubes and a fresh-to-aged welded joint were investigated to assess the weldability of fresh-to-aged reformer furnace tubes. Damage evaluation of the fresh-to-age…

Creep Rupture: From Physical Failure Mechanisms to Lifetime Prediction of Structures Open

Kangkang Wang, Xiaowei Wang, Jianfeng Wen, Xian‐Cheng Zhang, Jianming Gong , et al. · 2021

摘要: 蠕变断裂是高温部件最主要的失效模式之一,其特点在于失效前难见征兆,往往造成灾难性后果。澄清材料蠕变失效的微观物理机制,建立恰当的蠕变寿命预测模型是解决高温结构完整性评定、蠕变全寿命设计与运行维护的关键问题。从蠕变失效的微观物理机制出发,以蠕变寿命预测方法为落脚点,详细阐述蠕变孔洞形核长大机理,对描述蠕变损伤行为的力学模型进行归纳整理,总结对高温结构及其焊接接头进行蠕变寿命预测所需的基础理论与关键技术,对基于数字孪生技术的寿命预测方法进行展望。

Deformation Mechanisms of Selective Laser Melted 316l Austenitic Stainless Steel in High Temperature Low Cycle Fatigue Open

Yefeng Chen, Xiaowei Wang, Jia‐Wei Shen, Yawei Peng, Yong Jiang , et al. · 2021

Dual-phase cohesive zone modelling and experimental validation for hydrogen-assisted cracking of 2205 duplex stainless steel Open

Ping Tao, Fei Ye, Hang Liu, Jianming Gong, Xinyu Yang , et al. · 2020

Surface modification of CoCrFeNi high entropy alloy by low-temperature gaseous carburization Open

Yawei Peng, Jianming Gong, Thomas L. Christiansen, Marcel A.J. Somers · 2020

Remaining creep properties and fracture behaviour of P92 steel welded joint under prior low cycle fatigue loading Open

Wei Zhang, Tianyu Zhang, Xiaowei Wang, Haofeng Chen, Jianming Gong · 2020

The alternation of creep properties is unavoidable in welded structures after suffering from cyclic damage, which may lead to the premature failure of power plant units and hard to predict. This work is devoted to clarify the influence of …

Fatigue–Creep Interaction of P92 Steel and Modified Constitutive Modelling for Simulation of the Responses Open

Tianyu Zhang, Xiaowei Wang, Wei Zhang, Tasnim Hassan, Jianming Gong · 2020

Fatigue–creep interaction (FCI) responses of P92 steel are investigated experimentally and numerically. A series of isothermal FCI experiments with tensile dwell time ranging from 60 to 600 s were conducted at two temperatures under strain…

Analysis of enhanced hydrogen embrittlement fracture for pre-strain hardening 2205 duplex stainless steel Open

Ping Tao, Fei Ye, Weiwei Cen, Jiaxi Zhao, Yanfei Wang , et al. · 2019

The enhanced behavior of hydrogen embrittlement (HE) fracture for pre-strain hardening 2205 duplex stainless steel was investigated. Specimens with various degrees of engineering strain were pre-charged by cathodic charging, and then immed…

A New Empirical Life Prediction Model for 9–12%Cr Steels under Low Cycle Fatigue and Creep Fatigue Interaction Loadings Open

Xiaowei Wang, Wei Zhang, Tianyu Zhang, Jianming Gong, Magd Abdel Wahab · 2019

Low cycle fatigue (LCF) and creep fatigue interaction (CFI) loadings are the main factors resulting in the failure of many critical components in the infrastructure of power plants and aeronautics. Accurate prediction of life spans under s…

Numerical analysis of stress-induced and concentration-dependent carbon diffusion in low-temperature surface carburisation of 316L stainless steel Open

Jianming Gong, Minghui Fu, Yong Jiang, Dongsong Rong, Yawei Peng · 2019

A kinetic model based on stress-induced and concentration-dependent carbon diffusion was developed for simulating the carbon concentration-depth profile of carburised austenitic stainless steel. The model considers that the carbon diffusiv…

Cohesive zone modeling of hydrogen-induced delayed intergranular fracture in high strength steels Open

Weijie Wu, Yanfei Wang, Ping Tao, Xinfeng Li, Jianming Gong · 2018

A sequentially coupled hydrogen diffusion-cohesive zone modeling approach was applied to the simulation of hydrogen-induced delayed intergranular (IG) fracture in high-strength low-alloy steels. The effects of multiple hydrogen trap sites …

Characterization on stress-strain behavior of ferrite and austenite in a 2205 duplex stainless steel based on nanoindentation and finite element method Open

Ping Tao, Jianming Gong, Yanfei Wang, Yong Jiang, Yang Li , et al. · 2018

The stress-strain behavior of ferrite and austenite in a commercial 2205 duplex stainless steel was investigated by using nanoindentation test and microstructure-based finite element method (FEM). Results showed that the optimum load range…

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