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 Posted: Fri 18:20, 07 Jan 2011 Post subject: jordan shoes Ultra-high temperature quenching of 4 |
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Ultra-high temperature quenching of 40Cr dual microstructure and impact toughness of steel ...
Body 4 Conclusion (1) single quenching,[link widoczny dla zalogowanych], starting at about 1050U mixed crystals; with the holding time, the temperature generated by Nirvana F crystal drop (2) double quenching, when for the first time when the quenching temperature exceeds 950'C, will cause the second quenching austenite grain coarsening,[link widoczny dla zalogowanych], well to lower the temperature generated mixed crystal. When the first quenching temperature exceeds 1100'C,[link widoczny dla zalogowanych], will have a coarse grain inheritance. (3) bundle of martensite should be divided into two categories: the bundle is in the martensitic 20Cr steel is essentially the same degree by the Tan Sheet along the same habit plane parallel composition of F in the optical microscope showed a two-tone black and white fascicular block area constitutes a set of alternate vertical, should be called bundle plate martensite, martensite and not call it the bundle is in the martensitic 40Cr steel is composed of many buildings of different sizes and body pieces horse along the same habit plane parallel to each other constitute the optical microscope was the same color of the bundle Markov pension. No chunks structure, should be called special bundle of thin fibrous martensite or martensite (4 ~ 0Cr steel at high temperature quenching or the formation of wispy double martensite after quenching than martensite, the Ministry is the beam barrier sheet-like martensite (5) quenching process is most reasonable to take on low heat or low double quenching. improve the quenching temperature or take a low-temperature ultra-high temperature quenching and easy to produce a double arch f mixed crystals and large grains from the maggots, genetic, resulting in shock the toughness decreases, so they are not references to the heat treatment process 1MarderARetTheMorphologyofMartensit ~ LnIron-CarbonAtloysATransactionQLtarte heart I967.60f4): 65 【2KrausGetaLTheMorphologyofMartensiteinIron-CarbonAlloysMetallTrans, 197I. 2:3293, animal husbandry, Masashi \strength and toughness of 40Cr actinium new process of Beijing Imperial College of .1984,10 (I): 337 analysis and other death Tang j 40Cr steel increase strength and toughness of metal heat treatment, 1984 (7) 318 Tan Yuhua. Mahalanobis type of identification methods of pension Xiang Tan University of Natural Science, l99l (supplement): 9O9YuHunTa Ⅱ I Tan Yuhua letaLNewObservadonofMarkncMorphoHogyandSub ~ ructttremTransmimionElectronMicroscopy, MctallTrans (have proof finished proofs) l0 Tan Yuhua etat, the carbon steel 【: Playing with the fibrous leaves of the twenty} 0 Bong quality c off. r and shuttle | inch material mouth Seven Working .1991,4 [61:1906.1 I Tan Yu-female, etc., the high carbon steel in the martensitic state of stroke. Xiang thin Imperial College of Natural Science, 1992,4 {1 ): 93l2 Tan Yuhua etal Sapporo in the stone roller cook on the shock of steel 0,[link widoczny dla zalogowanych], sexual 【= hit ff.r burning of nursery 70. materials seven working population in 1991, state 6): l Shuai 7 (L received 21 JIA) of metamorphic One of the effective square peg mechanism. application of certain parameters of the cooling curve can be broken Kylie modification effect. If the primary phase precipitation. A large. A small, 6 small,[link widoczny dla zalogowanych], △ fl and large, like the modification effect. In Front using computer-assisted differential thermal analysis, rapid identification and control of metamorphism, there are prospects for development. \, 1991 (I): 592HannaMDetModificationintheAluminumSiliconsyskMetallurgicalTransaetionsa1984-15443) 459. · 25 ·
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