Rather than adding other metals, they developed a complexmechanical process involving repeated heatingand very severe mechanical transformation, known as tempforming.T he resulting steel appears to achieve a combination of strength and toughness that iscomparable to that of modern steels that arevery ...
Steelis valued for its reliability, but not when it gets cold. 2019年6月六级真题(第三套)阅读 Section A The resultingsteelappears to achieve a combination of strength and toughness that is comparable to that of modernsteelsthat are very rich in alloy content and, therefore, very expensive. ...
have modest corrosion resistance, and are employed incutlery, surgical instruments,wrenches, andturbines.Duplex stainless steels are a combination of austenitic and ferritic stainless steels in equal amounts; they contain 21 to 27 percent chromium, 1.35 to 8 percent nickel, 0.05 to 3 percent copper...
Steel - Basic Oxygen, Refining, Alloying: More than half the world’s steel is produced in the basic oxygen process (BOP), which uses pure oxygen to convert a charge of liquid blast-furnace iron and scrap into steel. The basic oxygen furnace (BOF) is a r
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空格前为系动词is,空格后为介词to,推测空格处为句子表语。空格后的that指代前文的a combination of strength and toughness,可见is ___ to应该能表示前后两者的比较,故填入comparable。34. components解析:名词辨析题。空格前为the number of,因此空格处应该填入名词。根据语义,他们想减少建筑工作所需的___数量和重...
Nitrogen– Nitrogen is often added in combination with other elements to form nitrides. These nitrides increase the hardness and tensile strength, but at the expense of toughness and ductility. 碳--碳是强度和硬度的最重要元素;随着碳含量的增加,抗拉强度和硬度也会增加。碳是提高强度的廉价方法,也是形成...
Sulfur dioxide is also produced along with calcium sulfide by the action of sulfur on lime. Carbonyl sulfide detected in the range 750-1100°C is produced probably by the direct combination of carbon monoxide and sulfur. At higher temperature, it is mostly decomposed. The reactions are as ...
The utility model provides a combination formula steel sheet of both sides fibula that furthers behind osteotomy is cut to fibula section, belongs to orthopedics medical instrument technical field for the fibula section furthers both sides calf bone stump and fix after cutting the osteotomy. Its ...
Metal foam as a combination of lightweight engineering and damping R.F. Singer, C. Koerner, V. Alstaedt, H. Muenstedt (Eds.), Cellular metals and polymers 2004 (2005), pp. 13-18 Google Scholar [5] L. Lefebvre, J. Banhart, D. Dunand Porous metals and metallic foams: current status...