Preparation and performance of a Pd-Co gradient coating on stainless steel

2017 ◽  
Vol 330 ◽  
pp. 249-254 ◽  
Author(s):  
Yu Zuo ◽  
Sirui Li ◽  
Xuhui Zhao ◽  
Yuming Tang
2021 ◽  
pp. 160793
Author(s):  
Jiaping Han ◽  
Bérengère Luthringer ◽  
Shawei Tang ◽  
Jin Hu ◽  
Carsten Blawert ◽  
...  

2019 ◽  
Vol 28 (8) ◽  
pp. 5220-5232
Author(s):  
Kun Li ◽  
Chang-Sheng Li ◽  
Yanlei Song ◽  
Bin-zhou Li ◽  
Jingbo Dong ◽  
...  

1989 ◽  
Vol 169 ◽  
Author(s):  
S. Salib ◽  
C. Vipulanandan ◽  
T. Stone

AbstractAggregation of YBa2Cu3O7‐x powder by compaction molding and sintering results in porous ceramic with poor mechanical properties and hence improving the ceramic properties using continuous stainless steel fibers have been studied. Fiber reinforced beam specimens (2% of fibers by weight) were prepared by modifying the standard processing method. Fibers were pretreated with silver to reduce the contamination of the superconducting matrix. The mechanical and electrical properties of the superconducting ceramic‐fiber composite was evaluated at 77K. Continuous stainless steel fibers improved the performance of the superconducting ceramic.


2018 ◽  
Vol 37 (4) ◽  
pp. 453
Author(s):  
Ahmad Thoriq ◽  
Agus Sutejo

Sago processing conducted by the people of Papua have used grater, but it lacks of attention on food safety because one of iron part (corrosion) having contact to the sago. However, it may affect the quality of sago starch. This study aimed to design and to test the performance of machine grater use stainless steel grade eyes. The method used was through the engineering design approach consists of problem identification, formulation and refinement of the design concept, design analysis and work drawing, machinery manufacturing, functional testing and performance testing. The results showed that the designed sago grater machines has a capacity of 649.38 kg/h at a speed of 1400 rpm rotary cylinder grate, and the sago pith loss rate of 6.71%. ABSTRAKPengolahan sagu yang dilakukan kelompok masyarakat di Pulau Papua hanya menggunakan mesin pemarut. Namun mesin pemarut yang digunakan kurang memperhatikan faktor keamanan pangan karena ada bagian alat yang kontak dengan empulur sagu yang terbuat dari besi yang mudah berkarat. Hal ini tentunya akan mempengaruhi mutu dan kualitas pati sagu yang dihasilkan. Penelitian ini bertujuan untuk melakukan desain dan uji kinerja mesin pemarut sagu dengan mata parut stainless steel. Metode yang digunakan pada penelitian ini yaitu melalui pendekatan rancangan teknik yang terdiri atas indentifikasi masalah, perumusan dan penyempurnaan konsep desain, analisis desain dan gambar teknik, pembuatan mesin, uji fungsional, dan uji kinerja. Hasil penelitian menunjukkan bahwa mesin pemarut sagu hasil rancangan memiliki kapasitas 649,38 kg/jam pada kecepatan putar silinder parut 1400 rpm, dan tingkat kehilangan empulur sagu sebesar 6,71%.


Author(s):  
W. F. Zimmerman ◽  
R. J. Rossbach

In a potassium Rankine-cycle technology program concerned with the life and performance of turbines in wet potassium vapor, a two-stage turbine has been designed, built, and performance tested in potassium vapor up to a temperature of 1580 F. Subsequently, a 2000-hr endurance test was completed at 1500 F with the objectives of determining the relative erosion resistance of refractory blading materials, the degradation in turbine performance with erosion, if any, and the contamination effects on selected refractory alloys in a Type 316 stainless steel facility. Performance was unaffected in 2000 hr of testing. Although minor liquid-metal corrosion of turbine blades was noted, no impact erosion occurred on turbine components. Some evidence of mechanical damage by liquid-drop impact or by cavitation was observed in test-specimen inserts behind the second stage. The 2000-hr test indicated the adequacy of a Type 316 stainless steel potassium turbine test facility for development testing of space power turbines with molybdenum alloy components.


RSC Advances ◽  
2018 ◽  
Vol 8 (35) ◽  
pp. 19426-19431 ◽  
Author(s):  
Yanli Wang ◽  
Shenghua Zhang ◽  
Zhaoxia Lu ◽  
Ping Wang ◽  
Xiaohong Ji ◽  
...  

A bilayer coating composed of an inner layer of Nb-doped TiO2 and an external polyaniline layer with small SO42− groups was prepared; the bilayer coating could protect 316L more effectively from the penetration of corrosive ions.


2014 ◽  
Vol 687-691 ◽  
pp. 4214-4217
Author(s):  
Xiao Ding ◽  
Zhi Ling Wang

MIG welding overlaid austenitic stainless steel on low alloy Q345B. The overlay cladding comprises a transition layer and corrosion resistant layer. Overlaying specimens of transition layer with different thicknesses were prepared. The mechanical properties of joints were tested by micro-hardness, bending test and other methods. The results showed that the mechanical properties of specimen with ER309L welding wire as transition layer did not have splitting phenomena after being bended. There were no cracks. However, the specimen without transition layer had small crack or tiny cracks. When the transition layer thickness is changed, the performance of overlay cladding is essentially unchanged. The organizations of overlay cladding in four groups of specimens are similar, which are composed of austenite and ferrite, and ferrite was mostly distributed in strips and blocks.


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