The present invention describes a flake graphitic cast iron with a chemical composition which allows obtaining superfine graphite and a large amount of primary austenite resulting in optimized mechanical properties. Particularly a higher amount of primary austenite and an intermediate graphite structure ...
Cast Irons K.B. Rundman, in Encyclopedia of Materials: Science and Technology, 2001 4 Microstructure and Mechanical Properties of Gray Cast Iron Gray cast irons have low tensile strengths and almost nonexistent ductilities (and impact strengths) due primarily to the nearly continuous nature (brea...
力学性能在消失模铸造条件下,通过向铁液中加入硫铁增硫的方法改变铸铁的含硫量,研究了含硫量的变化(0.0270%～0.143%)对灰铸铁微观组织和力学性能的影响.结果表明:当含硫量小于0.121%时,薄壁灰铸铁中过冷石墨的数量随着硫量的增加而减少,当含硫量增至0.143%时,过冷石墨基本消除;在试验成分范围内,随着含硫量的增加...
1) Gray iron casting 灰铸铁件1. This paper introduces the special properties of repair welding small defects for gray iron castings. 介绍了灰铸铁件小缺陷的特殊性 ,从焊补工艺上和材料的选用两方面考虑 ,有效地降低了焊接裂纹的产生 ,使母材与焊补金属熔合良好。
The wear properties of GI have been significantly improved by the use of austempering and quench-tempering heat treatments. Balachandran et al. [8] investigated the wear resistance of hypereutectic gray cast iron after receiving austempering and quench-tempering heat treatments. The austempered gray cas...
Gray Iron Grade Comparison GradeTensile Strength (psi min)Fatigue Strength (psi)Extended Sizes G2 >40,000*20,000 GX >40,000*20,000Yes G2P >40,000*tbd * Gray iron tensile strengths are based on the strength of a cast test bar. For more informationdownload our Dura-Bar ASTM A48 Polic...
The various aspects of the alloy chemistry and processing conditions have been correlated with the microstructure and mechanical properties obtained. The analysis showed that the Ni-Mo alloyed austempered gray iron and the directly as-cast austempered gray iron had similar phase constitutions. The ...
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perform a first visual inspection to check whether the product has casting defects before sending it to the next process. Fourth, conduct a comprehensive QC inspection of each part before shipment, including chemical composition, mechanical properties and other specific tests. ...
perform a first visual inspection to check whether the product has casting defects before sending it to the next process. Fourth, conduct a comprehensive QC inspection of each part before shipment, including chemical composition, mechanical properties and other specific tests. Transacti...