منابع مشابه
Production of Cu-Cr-Zr Alloy Using Electro Slag Remelting Technique (RESEARCH NOTE)
This study focused on the effect of electro slag remelting process (ESR) on microstructure and composition of an as-cast alloy of Cu-Cr-Zr. These observations revealed that applying ESR process results in a more uniform distribution of alloying elements, however a slight aggregation of large precipitates and inclusions existed in as-cast ingot was found. Additionally, impurities like P, S and M...
متن کاملEffect of Zr Addition on Mechanical Properties of Cr-Mo Plastic Mold Steels
We investigated the effects of the additions of Zr and other alloying elements on the mechanical properties and microstructure in Cr-Mo plastic mold steels. The addition of alloying elements changed the microstructure of the normalized samples from the upper bainite to lower bainite due to the increased hardenability. The tempering temperature influenced the strength and hardness values, especi...
متن کاملThe Effect of Slag Types and Melting Rate on Electro-Slag Remelting (ESR) Processing
In this research, the influence of chemical composition of slags and the melting rate on the impurity of commercial grade iron in ESR processing has been investigated.The chemical composition and microstructure studies were evaluated, using spectrophotometer,OMand EDX analyses attached to SEM.The results show that ESR process has successfully reduced the amount and size of inclusions. In some c...
متن کاملProblems in Repair-welding of Duplex-treated Tool Steels
Castings of aluminum and plastics are of high importance in the industrial world. They are usually made using permanent metallic moulds for pressure die-castings and injection molding. Die-tools are usually produced from chromium maraging hot work tool steel and are heat treated to hardness between 29 and 48 HRC, 1-3 . Die life is a mayor factor of a die-casting process and it strongly affects ...
متن کاملLaser welding of modern automotive high strength steels
The paper demonstrates the correlation between the chemical composition of steel grades and the hardness as well as the formability of laser welds generated with modern automotive high strength steel grades. At the very low heat input of industrial laser welding and the resulting extremely high cooling rate, the weld hardness is fully controlled by the carbon content of the base materials and n...
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ژورنال
عنوان ژورنال: Journal of the Japan Welding Society
سال: 1964
ISSN: 0021-4787,1883-7204
DOI: 10.2207/qjjws1943.33.469