SA508 low alloy steel to 316L stainless steel dissimilar metal joint made by powder metallurgy hot isostatic pressing

Le, Joshua; Yang, Jingfan; Yin, Houshang; Samarov, V. N.; Gandy, David; Lou, Xiaoyuan

doi:10.1016/j.msea.2023.145060

Cited by 10 publications

(3 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, despite the diffusion of vanadium and tungsten elements occurring in the bonded region, the presence of nanoscale pores results in a limited improvement in hardness, which is similar to that of the H13 region. Corresponding investigations have also discovered that abrupt changes in mechanical characteristics, typically a deterioration in mechanical characteristics, such as the formation of certain intermetallic compounds and nanophases that raise the hardness and lower the toughness, tend to occur at the bonding interface between two metallic materials [16,[32][33][34]. Table 4 lists the mechanical characteristics of the bonding region, while con two samples that have undergone various surface treatments.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…HSS produced using the HIP method usually has a fine grain size, uniformly distributed micron-sized carbides, and an excellent performance in terms of hardness and abrasion resistance [13][14][15]. Le et al [16] investigated the feasibility of connecting S508 steel and 316L steel via HIP and achieved a microstructure with negligible porosity as well as a high interfacial hardness. These studies illustrate that the HIP technique can be applied to surface-enhanced repair damaged molds, especially large damaged molds.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hot Work Mold Repaired via Hot Isostatic Pressing towards High Red Hardness

Ge,

Ma,

Chen

et al. 2023

Metals

View full text Add to dashboard Cite

Repairing hot work molds can extend their lifespans and reduce the production costs. This study presents a proposed method for enhancing the red hardness and strength of repaired molds. The method involves utilizing PM23 high-speed steel powder to repair H13 steel molds with two distinct surface states through the process of hot isostatic pressing (HIP). The internal microstructure changes, bonding state, fracture morphology, and crack extension behaviors of the repaired molds are characterized using scanning electron microscopy and electron backscatter diffraction technology. Additionally, the mechanical properties, including red hardness and tensile strength, are quantitatively analyzed. The findings indicate that the repaired area in the sandblasted sample exhibits a rough and uneven structure, demonstrating exceptional toughness. The tensile strength of the repaired region is approximately 1195.42 MPa, while the hardness measures around 672.8 HV. These properties effectively enhance the performance of the molds. The experimental findings indicate that HIP can effectively restore molds, resulting in enhanced red hardness and improved toughness, particularly when combined with sandblasting as a pretreatment method.

show abstract

Section: Mechanical Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hot Work Mold Repaired via Hot Isostatic Pressing towards High Red Hardness

Ge,

Ma,

Chen

et al. 2023

Metals

View full text Add to dashboard Cite

show abstract

“…For example, dissimilar HIP bonding between tool steel (0.82% C) and martensitic steels (0.16-0.98% C) have distinct carbon profiles and diffusion distance at interface, where elevated carbon due to uphill diffusion occurs in one case [26]. PPB oxides and carbides formation due to carbon diffusion cause unsatisfactory properties in powderto-solid HIP joints of SA508 and SS316L [27]. Additionally, phase transformation occurs during HIP or post heat treatments (such as austenite-martensite transformation in steel) which creates localized stress at the interface and increases the risk of cracking [8,26,28].…”

Section: Introductionmentioning

confidence: 99%

Processing, Microstructure, and Properties of Bimetallic Steel-Ni Alloy Powder HIP

Huang,

Shen,

Samarov

2024

Metals

Self Cite

View full text Add to dashboard Cite

This work explores technical feasibility in hot isostatic pressing (HIP) manufacturing of an integral bimetallic component using steel and Ni alloy powder for supercritical carbon dioxide (sCO2) turbomachinery. Lab-scale bimetallic HIP specimens using HAYNES® 282® and SS316L or SS415 powder are investigated in powder configuration, heat treatment, microstructure, and tensile properties up to 400 °C. Interdiffusion profiles at dissimilar alloy interfaces caused by HIP cycle is predicted by DICTRA simulations and validated by electron probe microanalysis (EPMA). The interdiffusion distance of most elements is around 100 μm, while C and N have a higher interdiffusion distance. Dense distribution of Ti-rich carbonitrides and alumina particles are found to decorate prior particle boundaries near joining interface on the 282 side, affecting tensile strength across interface as well as tensile failure location. A higher amount of excessive carbonitride formation near interface is observed in SS316L/282 than in SS415/282, which is consistent with the predicted greater degree of interdiffusion effect in SS316L/282. Typical HAYNES® 282® heat treatment condition is applicable to 282/SS316L and 282/SS415 combinations, resulting in a higher strength than cast CF8M and CA6NM. A pilot-scale bimetallic SS415/282 pipe is then demonstrated to show the promise of scaleup.

show abstract