Inconel718合金astm標(biāo)準(zhǔn)
Inconel718合金概述
Inconel718合金（UNS N07718/W.Nr.2.4668）是一種高強(qiáng)度、耐腐蝕鎳鉻合金材料。時(shí)效硬化合金，其有焊接特性，特別是有優(yōu)秀的焊后開裂的抵抗力
Inconel718合金的易用性和經(jīng)濟(jì)性可以與良好好耐疲勞、耐輻射、耐腐蝕、熱加工和焊接性能相結(jié)合，應(yīng)用廣泛如，液體燃料火箭、環(huán)、外殼和飛機(jī)和航空發(fā)動機(jī)渦輪盤、環(huán)件，燃?xì)鉁u輪發(fā)動機(jī)和低溫儲罐。它也被使用用于緊固件和儀表部件。
Inconel718合金成分
Inconel718合金標(biāo)準(zhǔn)
Inconel718合金鍛棒性能
Characteristics of Inconel718
1.Good processing properties in the solution-annealed condition2.Good mechanical short and long-term properties, and great fatigue strength in the age hardened condition3.Good creep resistance up to 700 °C 4. Good oxidation resistance up to approx. 1,000°C 5.Excellent mechanical properties in low temperatures
Corrosion resistance of Inconel718
Based on the high chrome and molybdenum concentrations,?GH4169 has a good resistance in many media against abrasive and local corrosion such as pitting. By virtue of its high nickel content,?GH4169 also has good resistance against stress corrosion cracking.
Typical applications of Inconel718
1.Alloy has been used to make aero-engine turbine discs, rings, casings, shafts, blades, fasteners, elastic elements, gas conduits, sealing elements and welded structural parts;
2.Make turbine rotors and other components in liquid hydrogen and liquid oxygen rocket engines;
3.Make various elastic elements and grids for nuclear power industry applications;
4.Manufacture various parts used in petroleum and chemical industry.
