Guocai Chai

ORCID: 0000-0003-1640-6366
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About
Contact & Profiles
Research Areas
  • Fatigue and fracture mechanics
  • Microstructure and Mechanical Properties of Steels
  • High Temperature Alloys and Creep
  • Hydrogen embrittlement and corrosion behaviors in metals
  • Microstructure and mechanical properties
  • Aluminum Alloy Microstructure Properties
  • Metallurgy and Material Forming
  • Welding Techniques and Residual Stresses
  • High-Temperature Coating Behaviors
  • Non-Destructive Testing Techniques
  • Nuclear Materials and Properties
  • Metal Alloys Wear and Properties
  • High-Velocity Impact and Material Behavior
  • Solidification and crystal growth phenomena
  • Fire effects on concrete materials
  • Metal Forming Simulation Techniques
  • Corrosion Behavior and Inhibition
  • Fusion materials and technologies
  • High Entropy Alloys Studies
  • Advanced Welding Techniques Analysis
  • Metallurgical Processes and Thermodynamics
  • Magnetic and transport properties of perovskites and related materials
  • Metal and Thin Film Mechanics
  • Concrete Corrosion and Durability
  • Surface Treatment and Residual Stress

Linköping University
2015-2024

Sandvik (Sweden)
2015-2024

Sandviken Hospital
2023-2024

Chengdu University
2024

Materials Technology (United Kingdom)
2008-2017

Anhui Polytechnic University
2015

University of Central Florida
2008

Sandvik (Austria)
2005

Stockholm University
1993-1995

Austenitic stainless steel grade UNS S31035 (Sandvik Sanicro® 25) has been developed for use in super-heaters and reheaters the next generation of A-USC power plants. This new shows very good resistances to steam oxidation hot corrosion, higher creep rupture strength than other austenitic steels available today. makes it an interesting alternative future high-efficient coal fired boilers. paper will mainly focus on study LCF behavior material at temperatures from 600 °C 750 by using TEM...

10.1016/j.proeng.2013.03.248 article EN Procedia Engineering 2013-01-01

Abstract Highly alloyed austenitic stainless steels are promising candidates to replace more expensive nickel-based alloys within the energy-producing industry. The present study investigates deformation mechanisms by microstructural characterization, mechanical properties and stress–strain response of three commercial two using uniaxial tensile tests at elevated temperatures from 673 K (400 $$^{\circ }$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow />...

10.1007/s11661-017-4212-9 article EN cc-by Metallurgical and Materials Transactions A 2017-07-17

Deformation behaviour in the Nickel-base superalloy 625 has been studied by tensile testing at four temperatures: 295, 223, 173 and 77 K. The microstructure investigated using TEM, FIB-SEM, EBSD ECCI techniques. alloy turns out to be a competitive course of events between least two deformation mechanisms, namely dislocation slip twinning. Slip is predominant mechanism higher temperatures. While K, induced twinning gives an extra degree freedom as one main i.e., material shows twin...

10.1016/j.msea.2024.146628 article EN cc-by Materials Science and Engineering A 2024-05-09

The influence of prefabricated dislocation features induced by rate dependent prestrain on the post-cyclic process in 7075 aluminum alloy exhibits significant variations, which are great importance terms concerns, designs, and discoveries. Considering strain provides diversified hardening stimuli for subsequent cyclic process. maximum stress stage was maintained at same level as prestress with rates ranging from 10-4s−1 to 10-1s−1. Subsequently, adjusting post-cycling amplitude, research...

10.1016/j.matdes.2024.112711 article EN cc-by-nc-nd Materials & Design 2024-01-29

AbstractAbstractDuring equiaxed dendritic solidification, grains form at the point where primary crystals become coherent (or impinge on each other). An experimental and theoretical approach to evaluate grain size in alloys is proposed, using thermal constitutional parameters, parameters dendrite coherency point. For an alloy with a solute concentration below solid solubility limit, inversely proportional (dT/dt)1/2 Σ miCoi (ki−1) (T temperature, t time, m liquid line slope, Co original...

10.1179/mst.1995.11.11.1099 article EN Materials Science and Technology 1995-11-01

ABSTRACTFor heat resistant alloys, long-term structural stability at high temperatures is a critical issue for alloy design and applications. In this paper, the creep behaviours stabilities of six Ni alloys austenitic stainless steels have been studied. The longest rupture life up to 359 283 hours. High Cr show good combination oxidation resistances. Precipitation nano MX particles with very low growth rate improves resistance temperatures. Long-term stable multiple nanoprecipitates MX,...

10.1080/09603409.2023.2263719 article EN Materials at High Temperatures 2023-09-27
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