Transactions of Materials and Heat Treatment

Title：Influence of forging and heat treatment on structure and property of GH4169 alloy

Authors： Wang Chunguang Wang Dongzhe Wan Hong Ge Feng Liu Wei Liu Hong Huang Min

Unit： Chongqing Materials Research Institute

KeyWords： GH4169 alloy heat treatment forgment δ-phase mechanical property

ClassificationCode：TG316

year,vol(issue):pagenumber：2014,39(12):14-18

Abstract：

GH4169 alloy is a kind of nickel-based high-temperature alloy with Nb enhanced precipitation hardening type. It was introduced that the structure properties of δ-phase, γ″-phase and γ′-phase in alloy GH4169, the influences of forging temperature, deformation, solution temperature and time, aging temperature and time on GH4169 alloy structure, and the effect of different structure on alloy performance. The grain refinement and δ-phase precipitation were determined by forging, and the distribution, pattern and size of δ-phase, γ″-phase and γ′-phase were controlled by solution and aging heat treating. The mechanical properties of alloys were determined by coordinating these two processes. It was very important to ensure accuracy during hot process for obtaining GH4169 alloy with good properties.

Funds：

国家“863计划”科技攻关项目（2012AA091104）；重庆材料研究院青年基金资助项目（13091032）；重庆市自然科学基金资助项目（cstc2012jjA50027）

王春光（1985-），男，硕士，工程师

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