Important features of casting systems when casting alloy cast irons in sand-clay molds

Author(s):  
Turaxodjayev Nodir Djahongirovich ◽  
Saidmaxamadov Nosir Muysinaliyevich
Keyword(s):  
2012 ◽  
Vol 580 ◽  
pp. 539-543
Author(s):  
Chao Hui Wang ◽  
You Wang ◽  
Zhao Yi Pan ◽  
Xiao Hua Gu ◽  
Sheng Xiao Li

The finite element method (FEM) was used to simulate the sliding wear progress. The stress field and strain field of Cr-Mo-Cu alloy cast iron with nano-additives under wear abrasion were analyzed through experiment and numerical investigation in this paper. And then the wear depth was got by calculation for different alloy cast irons by taking graphite morphology into account. The graphite morphology was changed by addition of nano-additives, with the aspect ratio of graphite was transformed from 2 to 10, three kinds of graphite aspect ratio prepared including 2, 5 and 10.


Alloy Digest ◽  
1955 ◽  
Vol 4 (7) ◽  

Abstract NI-RESIST high nickel alloy cast irons have high resistance to wear, corrosion, and heat. They are furnished in seven different types varying primarily in nickel, chromium, and copper content. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fracture toughness and fatigue. It also includes information on high temperature performance and corrosion resistance as well as machining and joining. Filing Code: CI-11. Producer or source: International Nickel Company Inc..


Wear ◽  
1990 ◽  
Vol 137 (1) ◽  
pp. 143-146 ◽  
Author(s):  
W.J. Tomlinson ◽  
M.G. Talks

2012 ◽  
Vol 580 ◽  
pp. 485-488
Author(s):  
Chao Hui Wang ◽  
Zhuan Fang Zhang ◽  
You Wang ◽  
Xiao Hua Gu ◽  
Sheng Xiao Li

In this paper Cr-Mo-Cu alloy cast irons were prepared by adding nano-additives. The finite element of ANSYS was used to simulate the change of the stress field and strain field of Cr-Mo-Cu alloy cast iron with nano-additives under wear abrasion. The changes of shear stress and strain are also discussed in this paper.


1985 ◽  
Vol 27 (7) ◽  
pp. 491-494
Author(s):  
E. V. Rozhkova ◽  
O. M. Romanov

2017 ◽  
Vol 62 (1) ◽  
pp. 119-128 ◽  
Author(s):  
A. N. Wieczorek

AbstractThe paper presents the results of wear tests obtained for 4 groups of materials: surface-hardened alloy steels and alloy cast steels for structural applications, hard-wearing surface-hardened alloy cast steels, and austempered alloy cast irons. The wear tests have been performed on a specially designed test rig that allows reproducing the real operating conditions of chain wheels, including the rolling and sliding form of contact between elements. The chain wheels subjected to tests were operated with the use of loose quartz abrasive. This study presents results of measurements of material parameters, micro-structure of a surface subject to wear, as well as the linear wear determined for the materials considered. Based on the results, the following was found: the best wear properties were obtained for surface-hardened alloy steels and wear surface; strengthening of the ADI surface took place - most probably as a result of transformation of austenite into martensite; the uniformity of the structure of the materials affects the surface wear process. The study also indicated a significant degree of graphite deformation in ADI characterized by the upper ausferritic structure and its oblique orientation in relation to the surface, which resulted in a facilitated degradation of the surface caused by the quartz abrasive.


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