Dissolution and evolution of interfacial oxides improving the mechanical properties of solid state bonding joints

2018 ◽  
Vol 157 ◽  
pp. 437-446 ◽  
Author(s):  
Bijun Xie ◽  
Mingyue Sun ◽  
Bin Xu ◽  
Chunyang Wang ◽  
Dianzhong Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Solid State ◽  
Solid State Bonding

Solid State Bonding of CuCrZr to Duplex Stainless Steel

2013 ◽  
Vol 302 ◽  
pp. 136-139 ◽  
Author(s):  
Ho Sung Lee ◽  
Jong Hoon Yoon ◽  
Joon Tae Yoo ◽  
Ji Ung Choi
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
High Temperature ◽  
Solid State ◽  
Duplex Stainless Steel ◽  
High Strength ◽  
Atomic Diffusion ◽  
Thermal And Mechanical Properties ◽  
Solid State Bonding ◽  
Duplex Steel

In the solid state bonding, joint are made by pressing surfaces together at high temperature so that a bond grows across the interface by atomic diffusion. In order to satisfy both requirements of thermal and mechanical properties of aerospace vehicle, conductive CuCrZr alloy was bonded to duplex steel with high strength. Solid state bonding was performed at 3 different pressure conditions and at temperatures of 850°C and 950°C. Microstructural and mechanical evaluation was performed to obtain the optimum joining condition.

Studies on Shielded Active Gas Forge Welded API 5CT L80 Material at Different Cooling Rates

2011 ◽  
Vol 409 ◽  
pp. 871-876 ◽  
Author(s):  
P. Vinothkumar ◽  
S.M. Ganesan ◽  
Jan K. Solberg ◽  
B. Salberg ◽  
P.T. Moe
Keyword(s):  
Mechanical Properties ◽  
Solid State ◽  
Processing Parameters ◽  
Bonding Process ◽  
Small Scale ◽  
Controlled Cooling ◽  
Cooling Rates ◽  
Solid State Bonding ◽  
Pipe Line ◽  
Grade Material

Shielded Active Gas Forge Welding (SAG-FW) is a solid state bonding process in which two mating surfaces are locally heated and forged together to form a bond. SAG-FW has so far mainly been used to join materials for pipe-line and casing applications. The present study has been conducted on an API 5CT L80 grade material in a prototype forge welding machine. Small-scale pipe specimens have been extracted from the wall of the production casing. The SAG-FW process is completed within a few seconds of heating and forging followed by controlled cooling. The microstructure of the weld is determined by the processing parameters. In this paper, microstructure results for SAG-FW processed L80 material have been obtained for a range of cooling rates and systematically compared with microhardness values. Microstructure observations at different regions of the weld have been made. Faster heating rate and controlled cooling resulted in a mixture of non equilibrium microstructures, but satisfactory mechanical properties have been obtained for optimized processing parameters.

scholarly journals Microstructure and mechanical properties of solid state recycled 4Cr5MoSiV (H11) steel prepared by powder metallurgy

2021 ◽  
pp. 100184
Author(s):  
Gyanendra Bhatta ◽  
Luis De Los Santos Valladares ◽  
Xinggang Liu ◽  
Zhaojun Ma ◽  
A. Bustamante Domínguez ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Powder Metallurgy ◽  
Solid State ◽  
Microstructure And Mechanical Properties

scholarly journals Proton-conductive coordination polymer glass for solid-state anhydrous proton batteries

2021 ◽  
Vol 12 (16) ◽  
pp. 5818-5824
Author(s):  
Nattapol Ma ◽  
Soracha Kosasang ◽  
Atsushi Yoshida ◽  
Satoshi Horike
Keyword(s):  
Mechanical Properties ◽  
Solid State ◽  
Coordination Polymer ◽  
Proton Battery ◽  
Polymer Glass

Melt-quenched coordination polymer glass shows exclusive H+ conductivity (8.0 × 10−3 S cm−1 at 120 °C, anhydrous) and optimal mechanical properties (42.8 Pa s at 120 °C), enables the operation of an all-solid-state proton battery from RT to 110 °C.

Fe/Ni diffusion behavior in the shear-extrusion solid state bonding process

2021 ◽  
Vol 67 ◽  
pp. 35-45
Author(s):  
Shuangjie Zhang ◽  
Wei Wang ◽  
Shibo Ma ◽  
Qiang Li
Keyword(s):  
Solid State ◽  
Bonding Process ◽  
Diffusion Behavior ◽  
Solid State Bonding

Solid-state bonding between vanadium alloys and alumina

1991 ◽  
Vol 179-181 ◽  
pp. 1166
Author(s):  
K. Abe ◽  
T. Higuchi ◽  
Y. Fujino
Keyword(s):  
Solid State ◽  
Vanadium Alloys ◽  
Solid State Bonding

Mechanical Properties of Thixoformed 7075 Feedstock Produced via the Direct Thermal Method

2015 ◽  
Vol 651-653 ◽  
pp. 1569-1574 ◽  
Author(s):  
Asnul Hadi Ahmad ◽  
Sumsun Naher ◽  
Dermot Brabazon
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Solid State ◽  
Tensile Testing ◽  
Thermal Method ◽  
Test Unit ◽  
Pouring Temperature ◽  
Injection Test ◽  
Semi Solid ◽  
Conventionally Cast

Abstracts: This paper presents an overview of measured mechanical properties of thixoformed aluminium 7075 feedstock produced by the direct thermal method (DTM). The DTM feedstock billets were processed with a pouring temperature of 685 °C and holding periods of 20 s, 40 s and 60 s before being quenched and subsequently thixoformed. A conventionally cast feedstock billet was produced with a pouring temperature of 685 °C and was allowed to solidify without quenching. The feedstock billets were later formed by an injection test unit in the semi-solid state. Tensile testing was then conducted on the thixoformed feedstock billets. Tensile properties for 7075 DTM thixoformed feedstock billets were found significantly influenced by the thixoformed component density. Samples with longer holding times were found to have higher density and higher tensile strength.

The Fabricated Collagen-Based Nano-Hydroxyapatite/β-Tricalcium Phosphate Scaffolds

2012 ◽  
Vol 506 ◽  
pp. 57-60 ◽  
Author(s):  
M. Ebrahimi ◽  
Naruporn Monmaturapoj ◽  
S. Suttapreyasri ◽  
P. Pripatnanont
Keyword(s):  
Mechanical Properties ◽  
Solid State ◽  
Calcium Phosphate ◽  
Biphasic Calcium Phosphate ◽  
Single Phase ◽  
Physical And Mechanical Properties ◽  
Total Porosity ◽  
Xrd Pattern ◽  
Collagen Coating ◽  
Dimensional Shrinkage

The biphasic calcium phosphate (BCP) concept was introduced to overcome disadvantages of single phase biomaterials. In this study, we prepared BCP from nanoHA and β-TCP that were synthesized via a solid state reaction. Three different ratios of pure BCP and collagen-based BCP scaffolds (%HA/%β-TCP; 30/70, 40/60 and 50/50) were produced using a polymeric sponge method. Physical and mechanical properties of all materials and scaffolds were investigated. XRD pattern proved the purity of each HA, β-TCP and BCP. SEM showed overall distribution of macropores (80-200 µm) with appropriate interconnected porosities. Total porosity of pure BCP (93% ± 2) was found to be higher than collagen-based BCP (85%± 3). It was observed that dimensional shrinkage of larger scaffold (39% ± 4) is lower than smaller one (42% ± 5) and scaffolds with higher HA (50%) ratio experienced greater shrinkage than those with higher β-TCP (70%) ratio (45% ±3 and 36% ±1 respectively). Mechanical properties of both groups tend to be very low and collagen coating had no influence on mechanical behavior. Further studies may improve the physical properties of these composite BCP.

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