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| Effect of aging temperature on PPB and mechanical properties of PM FGH96 alloy |
| ZHAO Jian-qing, LIU Jing, ZHANG Yin-dong, FU Su-zhen |
| （AVIC Shenyang Liming Aero-Engine Group Co., Ltd., Shenyang 110043, China） |
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Abstract The powder metallurgy FGH96 alloy was prepared by plasma rotating electrode process (PREP) and hot isostatic pressing (HIP). Effects of aging temperature on microstructure and mechanical properties of FGH96 alloy were studied. The results show that the grain size and twin crystal of FGH96 alloy have no obvious change, while the prior particle boundary (PPB) increases obviously with the increase of aging temperature. The tensile strength and yield strength of the alloy decrease, while the elongation, shrinkage and creep elongation increase with the increase of aging temperature. The morphology of cracking along the powder particles in the tensile fracture increases with aging temperature increasing.
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Received: 13 May 2015
Published: 05 November 2015
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| [1]张莹, 张义文, 陶宇等．.FGH96粉末高温合金的组织演变[J][J].材料工程, 2002, 增(增):62-64[2]LIJ，WANG H M. Microstructure and mechanical properties of rapid directionally solidified Ni-base superalloy Rene41 by laser melting deposition manufacturing[J][J].Materials Science and Engineering A, 2010, 527(527):4823-4829[3]胡本芙，李慧英.章守华粉末高温合金热处理裂纹形成原因研究[J]．，1987，23(2)：96?100．[J].金属学报, 1987, 23(2):96-100[4]赵军普，陶宇，袁守谦等.粉末冶金高温合金中的原始粉末颗粒边界问题[J].粉末冶金工业, 2010, 20(4):43-43[5] Ingesten NG, War ren R, Winberg L.Nature and or igin of previous par ticle boundar y precipitates in P/ M superalloys[J].Stickler R. High Temperature Alloys for Gas Turbines 1982[ C], 1982, 1982(1982):1013-1027[6]马文斌，刘国权，胡本芙等.粉末高温合金FGH96中的原始粉末颗粒边界及其对合金拉伸断裂行为的影响[J].粉末冶金材料科学与工程, 2013, 2(2):1-7 |
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2015, Vol. 25 
