scholarly journals Brazed Joint Strength of Stainless Steel with Nickel Base Filler Metals

1979 ◽  
Vol 43 (11) ◽  
pp. 1001-1007 ◽  
Author(s):  
Ichiro Kawakatsu ◽  
Tadashi Osawa ◽  
Haruhisa Saito
Keyword(s):  
Stainless Steel ◽  
Joint Strength ◽  
Brazed Joint ◽  
Nickel Base ◽  
Filler Metals

Mechanical Properties and Microstructure of SUS304 Brazed Joint with Ni-Based Filler Metals Added Cr Powder

2005 ◽  
Vol 297-300 ◽  
pp. 2767-2771
Author(s):  
Ikuo Shohji ◽  
Satoshi Takayama ◽  
Takanori Nakazawa ◽  
Ken Matsumoto ◽  
Masanori Hikita
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Joint Strength ◽  
Brazed Joints ◽  
Brazed Joint ◽  
Filler Metals

In the brazed joint of stainless steel with BNi-2 filler, brittle Cr-B compounds form in the vicinity of the centerline of the brazed joint. These compounds cause a decrease in joint strength. In this study, BNi-2 filler supplemented with Cr powder has been used in brazing stainless steel in orde r to disperse brittle Cr-B compounds uniformly in the brazed joint and improve joint strength. The mechanical properties and microstructures of the brazed joints were investigated. Moreover, a comp arison of the brazed joint with that using the BNi-2 filler was conducted.

Effects of Ni and Co Additions to Filler Metals on Ag-Brazed Joints of Cemented Carbide and Martensitic Stainless Steel

2014 ◽  
Vol 922 ◽  
pp. 322-327 ◽  
Author(s):  
Kengo Kaiwa ◽  
Shinji Yaoita ◽  
Tomohiro Sasaki ◽  
Takehiko Watanabe
Keyword(s):  
Stainless Steel ◽  
Joint Strength ◽  
Martensitic Stainless Steel ◽  
Braze Alloy ◽  
Cemented Carbide ◽  
Suppression Effect ◽  
Brazed Joints ◽  
Co Addition ◽  
Multiple Addition ◽  
Filler Metals

This study focuses on understanding the effect of Ni and Co additions to filler metals on Ag-brazed joints of cemented carbide and martensitic stainless steel. Ni and Co added braze alloys were processed based on Ag-Cu-Zn ternary alloy, and joint strength and microstructure of the brazed layer has been investigated. The joint strength increased by the 2.0mass%Ni and 0.5mass%Co addition into braze alloy. This trend is remarkable in the Co added alloy, and the brazed joint increased by 141% compared to that in no-added alloy. The joint strength was closely related to the suppression effect of Co dissolution from cemented carbide into filler layer and Fe diffusion from the stainless steel to the brazed layer. In the brazed microstructure, Co-depleted zone caused by dissolution of Co in the cemented carbide was observed near the interface between the cemented carbide and the steel. Width of the Co-depleted zone significantly decreased in the Co added alloy. However, the joint strength decreased in the multiple addition compared to that in the single addition of Ni or Co.

scholarly journals Micro-Brazing of Stainless Steel Using Ni-P Alloy Plating

2019 ◽  
Vol 9 (6) ◽  
pp. 1094
Author(s):  
Shubin Liu ◽  
Ikuo Shohji ◽  
Makoto Iioka ◽  
Anna Hashimoto ◽  
Junichiro Hirohashi ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Shear Strength ◽  
Solid Solutions ◽  
Joint Strength ◽  
Filler Metal ◽  
Average Shear Strength ◽  
Average Shear ◽  
Brazed Joints ◽  
Brazed Joint ◽  
Alloy Plating

A Ni-P plated layer of 20 μm thickness containing 11 wt.% P was formed on the surface of a stainless steel (SUS304) plate by electroplating. The microstructure and joint strength of the brazed joint with the electroplated Ni-11P layer were investigated. The results indicated that the filler metal was homogeneously distributed between the SUS304 plates and no voids or flaws formed in the brazed filler zone. Fe-Ni-Cr solid solutions were formed at the brazed interface. Moreover, P was mainly concentrated in such brazed filler zone to form P-containing phases. The average shear strength of the brazed joints was determined to be 47.3 MPa. The results demonstrated that the brazing of SUS304 plates using the electroplated Ni-11P layer as the filler metal was successfully realized.

Brazing of Stainless Steel Using Electrolytic Ni-P Plating Film and Investigation of Corrosion Behavior

2021 ◽  
Vol 1016 ◽  
pp. 522-527
Author(s):  
Anna Hashimoto ◽  
Shu Bin Liu ◽  
Ikuo Shohji ◽  
Tatsuya Kobayashi ◽  
Junichiro Hirohashi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Stainless Steel ◽  
Heat Exchanger ◽  
Cross Section ◽  
Corrosion Behavior ◽  
Joint Strength ◽  
Filler Metal ◽  
Microstructural Observation ◽  
Brazed Joint ◽  
Alloy Plating

Electrodeposited Ni-11 mass%P alloy plating film was fabricated on the surface of stainless steel SUS304 to conduct brazing of SUS304 plates for a heat exchanger. Brazing of SUS304 plates with electrodeposited Ni-11P layers was carried out using a hydrogen reducing furnace. The microstructure and joint strength of the brazed joint were also investigated. From the result of the microstructural observation of the cross section of the joint, it was found that the brazing filler metal is homogeneously distributed without defects such as voids between the SUS304 plates. The results of electrochemical measurements showed that the P-concentrated phase in the Ni-11P alloy is preferentially dissolved in NaCl aqueous solution.

Preparation and Properties of a Custom-Designed Nickel-Based Amorphous Brazing Foil

2012 ◽  
Vol 499 ◽  
pp. 143-146
Author(s):  
Bin Wang ◽  
Tian Yu Zhu ◽  
Fang Fei Dong ◽  
Yan Qing Shen
Keyword(s):  
Stainless Steel ◽  
Base Metal ◽  
Joint Strength ◽  
Melting Range ◽  
Wetting Behavior ◽  
Mechanical Joint ◽  
Melting Characteristics ◽  
Filler Metals ◽  
Thick Foil ◽  
Cobalt And Nickel

The custom-designed amorphous brazing filler metals in foil form has been developed for application in brazing stainless steel 0Cr18Ni9. The new alloys contains 10.5wt% chromium, 5.4wt% silicon, 1.5wt% boron, 3wt% cobalt and nickel as the balance. The melting range is within 971°C1070°C. The alloy exhibits good melting characteristics and wetting behavior. With a 25μm thick foil, the joint is free of brittle central eutectic phases inside the joint via diffusion of the alloying elements into adjoining base metal and results on a high mechanical joint strength.

scholarly journals Effect of In and Pr on the Microstructure and Properties of Low-Silver Filler Metal

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 929
Author(s):  
Jie Wu ◽  
Songbai Xue ◽  
Peng Zhang
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Melting Temperature ◽  
Filler Metal ◽  
304 Stainless Steel ◽  
The Novel ◽  
Spreading Area ◽  
Brazed Joint ◽  
Filler Metals ◽  
Liquidus Temperatures

The novel low-silver 12AgCuZnSn filler metals containing In and Pr were used for flame brazing of copper and 304 stainless steel in this study. The effects of In and Pr content on the melting temperature, wettability, mechanical properties and microstructure of 12AgCuZnSn filler metal were analyzed. The results indicate that the solidus and liquidus temperatures of filler metals decrease with the addition of In. Trace amounts of Pr have little impact on the melting temperature of the low-silver filler metals. In addition, the spreading area of filler metals on copper and 304 stainless steel is improved. The highest shear strength of brazed joint is 427 MPa when the content of In and Pr are 2 wt.% and 0.15 wt.%, respectively. Moreover, it is observed that the trace amount of Pr significantly refines the microstructure of brazed joint matrix. A bright Pr3Cu4Sn4 phase is found in filler metal and brazing seam when the contents of In and Pr are 5 wt.% and 0.5 wt.%, respectively.

WAUKESHA ALLOY 88

Alloy Digest ◽  
1993 ◽  
Vol 42 (2) ◽  
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
High Temperature ◽  
Physical Properties ◽  
Base Alloy ◽  
Heat Treating ◽  
Nickel Base Alloy ◽  
Corrosion Resistant ◽  
Temperature Performance ◽  
Nickel Base

Abstract WAUKESHA METAL NO. 88 is a corrosion resistant nickel-base alloy compounded to run against stainless steel without galling or seizing. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance as well as casting, heat treating, machining, and joining. Filing Code: Ni-84. Producer or source: Waukesha Foundry Company. Originally published July 1963, revised February 1993.

ACI HW

Alloy Digest ◽  
1957 ◽  
Vol 6 (11) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Base Alloy ◽  
Heat Treating ◽  
Cyclic Heating ◽  
Nickel Base Alloy ◽  
Type Alloy ◽  
Temperature Performance ◽  
Nickel Base

Abstract Type HW is a nickel-base alloy containing chromium and iron. It is austenitic, non-magnetic, and has exceptionally high resistance to corrosion, cyclic heating, and oxidation. It is of the 60 Ni-12Cr type alloy. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Ni-37. Producer or source: Stainless steel foundries. Revised as Alloy Digest Ni-449, April 1994.

JS777

Alloy Digest ◽  
1980 ◽  
Vol 29 (11) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Cost Effective ◽  
Heat Treating ◽  
Steel Company ◽  
High Alloy ◽  
Cost Effective Alternative ◽  
Resistance To Stress ◽  
Nickel Base

Abstract JS777 is a high-alloy, fully austenitic stainless steel developed for applications where corrosive conditions are too severe for the standard grades of stainless steel. It also provides a cost-effective alternative to more expensive nickel-base and titanium-base alloys. It has relatively high resistance to stress-corrosion cracking and to intergranular corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-377. Producer or source: Jessop Steel Company.

scholarly journals Stored Energy Welding Technology of Ultra-Thin Sheet Stainless Steel

2013 ◽  
Vol 749 ◽  
pp. 27-30
Author(s):  
Hao Bin Zhou ◽  
Ju Lian Ma ◽  
Xiang Qian Xu
Keyword(s):  
Stainless Steel ◽  
Spot Welding ◽  
Joint Strength ◽  
Thin Sheet ◽  
Welding Parameter ◽  
Welding Parameters ◽  
Dynamic Resistance ◽  
Stored Energy ◽  
Welding Technology ◽  
The Hard Problem

Considering the characteristics of the multilayered ultra-thin sheet stainless steel, by chosen the proper equipments and stored energy welding technology, the optimizing welding parameters are got from the condenser discharge spot welding experiments. The energy stored in the capacitor group is controlled by the energy required during welding and the discharge current is controlled by the size of dynamic resistance in resistance spot welding. So those control ways can better solve the hard problem of choosing welding parameter. The joint strength of ultra-thin sheet stainless steel is ensured by the reasonable quality assessment methods. The processed spot-welded joints are of good quality and appearance.

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