Creep performance of transient liquid phase bonded haynes 230 alloy

Rozman, Kyle A.; Carl, Matthew; Kapoor, Monica; Doğan, Ömer; Hawk, Jeffrey A.

doi:10.1016/j.msea.2019.138477

Cited by 12 publications

(5 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This work has established the material performance of diffusion bonded 800H and failure mechanisms under different loading conditions. Similar failure mechanisms have been demonstrated for diffusion bonded Alloy 617 and Haynes 230 specimens [4,7,8]. The failure mechanisms of diffusion bonds in presence of channels at elevated temeprature under creep and creep-fatigue loading are not known.…”

Section: Introductionmentioning

confidence: 57%

Mechanical Performance Evaluation of the Printed Circuit Heat Exchanger Core Experiments Under Tension and Pressure Loading

Mahajan

Hassan

Maciel

et al. 2022

Volume 2: Computer Technology and Bolted Joints; Design and Analysis

View full text Add to dashboard Cite

The printed circuit heat exchanger (PCHE) has small channels with high surface area, making them an efficient solution for next-generation nuclear plants (NGNPs). These PCHEs are fabricated through a diffusion bonding process. This fabrication step changes the microstructure of wrought metal plates. The current ASME design code does not support the PCHE design for NGNPs due to a lack of test data. Hence, there has been initiative towards elevated temperature mechanical property characterization of the diffusion bonded material. One of the most common channel shapes is a semicircular channel with sharp corners. These corners act as a stress riser at the diffusion bonding interface. Evaluating elevated temperature mechanical performance of diffusion bonded material in the presence of stress risers is an essential step towards the ASME code development of PCHE design. This study selected two specimen geometries: the first is a PCHE bar specimen for tensile loading with three rows and three columns of channels, and the second is a lab-scaled PCHE with six rows and eight columns of channels. A set of elevated temperature monotonic and cyclic tests were conducted on the PCHE bar specimen to evaluate the mechanical performance under axial tensile loadings to study the failure mechanism. The lab-scaled PCHE specimens were tested under overpressure loads at room temperature, and pressure creep and pressure creep-fatigue loadings to mimic the realistic loading conditions observed in typical NGNPs. The X-ray scans of channeled specimens show interesting observations. The test results and observations are presented in the paper.

show abstract

Section: Introductionmentioning

confidence: 57%

Mechanical Performance Evaluation of the Printed Circuit Heat Exchanger Core Experiments Under Tension and Pressure Loading

Mahajan

Hassan

Maciel

et al. 2022

Volume 2: Computer Technology and Bolted Joints; Design and Analysis

View full text Add to dashboard Cite

show abstract

“…(2) insertion of an interlayer [11][12][13][14][15][16][17][18]; and (3) depleting the secondary precipitates forming elements before diffusion welding [19]. Since it has been difficult to dissolve the tenacious secondary precipitates, such as Ti-rich carbides and Al-rich oxides, by post-weld heat treatment [7][8][9][10]14], improvement has been limited.…”

Section: Introductionmentioning

confidence: 99%

“…Even though the insertion of an interlayer produces diffusion-induced grain boundary migration, it is difficult to restrict the secondary precipitates with this method [11][12][13][14][15]. Moreover, the interlayer contains a melting point depressant (B, P, Si, and S), which forms additional secondary precipitates that did not originally exist [16][17][18]. Depleting the secondary precipitate formers effectively enhances mechanical properties as it does in as-received alloys [19].…”

Section: Introductionmentioning

confidence: 99%

Diffusion Welding of Surface Treated Alloy 800H

Hwang,

Sa,

Kim

et al. 2023

Metals

View full text Add to dashboard Cite

Diffusion welding of heat-resistant alloys has attracted interest in the manufacturing of components with complex configurations. Controlling secondary precipitates along the interface is necessary to enhance the quality of the diffusion welding. Surface treatment to increase the solubility product (Ksp) of Ti-rich carbide is proposed to accomplish such an enhancement. The reduction of secondary precipitates along the interface induced grain boundary migration across the interface. The chemical compositions at/near the interface satisfied the material specifications. The mechanical properties of the diffusion weldment were similar to those of Alloy 800H that underwent the same thermo-mechanical processes in the range of 25–700 °C. At 25 °C, the tensile strength was 553 MPa, which satisfied the minimum specified tensile strength described in ASTM B: 409-06. The location of failure was random in the gauge section, and dimples, the evidence of the macroscopic plastic deformation, were observed on the fracture surface.

show abstract

“…As mentioned above, the degradation of mechanical properties at room and high temperatures is unavoidable. However, very few researchers have conducted high-temperature mechanical tests [1,39,[44][45][46][47][48][49], and joint features, such as the extent of degradation in mechanical properties compared to the as-received alloy, have not been reported to date.…”

Section: Introductionmentioning

confidence: 99%

Creep Behavior of Diffusion-Welded Alloy 617

Sah

Hwang

Kim

2021

Metals

View full text Add to dashboard Cite

Plate-type heat exchangers are anticipated to be used in the next-generation nuclear industry, and solid-state diffusion welding is a critical technology for building plate-type heat exchangers with high integrity. In this study, we manufactured a diffusion weldment and evaluated its creep behavior. Microscopic analysis revealed that Al-rich oxides were developed along the interface, significantly impeding grain-boundary movement across the interface. Oxide-containing planar grain boundaries resulted in premature brittle fracture at the interface with less than 9% creep strain under all test conditions. The time to rupture and time to 1% creep strain of the diffusion weldment were less than those of the as-received alloy, while the slopes in double-logarithmic plots were almost identical for both alloys. In a Larson–Miller parameter study, the stress to rupture of the diffusion weldment reached 95.59% of that of the as-received alloy, whereas the stress to 1% creep strain steeply decreased in the low-stress range.

show abstract

Creep performance of transient liquid phase bonded haynes 230 alloy

Cited by 12 publications

References 39 publications

Mechanical Performance Evaluation of the Printed Circuit Heat Exchanger Core Experiments Under Tension and Pressure Loading

Mechanical Performance Evaluation of the Printed Circuit Heat Exchanger Core Experiments Under Tension and Pressure Loading

Diffusion Welding of Surface Treated Alloy 800H

Creep Behavior of Diffusion-Welded Alloy 617

Contact Info

Product

Resources

About