COST 507 - Repositório Aberto da Universidade do Porto

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system. Alloys at compositions of 1, 2 and 3 - prepared in Vienna - and at 6 wt% Mn - prepared by Alean - have been studied to determine liquidus, phase boundary and invariant reaction temperatures,. The thermal arrests found so far are summarised in the Table 1 below and shown in Figure 2. Table 1 - Al-Mn-Si results Alloy Comp wt%Mn 1 2 3 6 Eutectic Reaction Temperature (°C) Heating 576.9 577.0 576.1 578.0 Cooling 575.8 576.7 576.4 576.0 Heating 635.6 636.7 639.1 614.8 Other Thermal Arrests (°C) Cooling 633.0 634.1 637.0 640.5 Heating - - - 715.6 Cooling - - - 694.3 Liquidus Temp (°C) 667.9 - 702.9 759.3 4. Al-Fe-Mn measurements(Anja Semeeis) Smith thermal analysis studies were carried out by Serneels and Hayes on four Al-Fe- Mn alloys with 2wt% Mn, with 0.5, 1, 2 and 3wt% Fe respectively. Sample were prepared in Leuven by melting and casting master alloys with Al under an Ar atmosphere. Experiments were carried out determine liquidus, secondary separation and invariant reaction temperatures. Following Smith thermal analysis, the phases present in the samples were identified using optical metallography, XRD and SEM/EDX. DSC measurements were also carried out on the same samples. The thermal arrests found so far are given in the Table 2 below and are shown in the Figure 3. It is seen that the Smith results for the Al 6 Mn liquidus temperatures are consistently higher than those given by [43Phi]; other temperatures agree well. 5. Al-Mn and Al-Fe-Mn measurements (Franz Weitzer) Seven selected Al-Mn alloys were studied by the Smith method. In addition to equilibrium phase boundary and reaction temperatures, metastable reactions were also studied on cooling. The results are summarised in Figure 4 superimposed on the phase diagram published in [90Mas] after [87McA]. The present results agree well with the data presented by [87McA]. Eight further alloys, Al^Mn, Algi.3Fe2.2Mni6.5, Al8i.3Fe 5 .7Mni3, A^FeeMn^, A^FeicsMn^.g, Al 76 Fe 8 Mni 5 , A^Fe^Mn^· Al72.5Fei8.5Mn9 5 and AlrøFeiisMnics were also studied. Samples were prepared in Vienna. Results have already been presented [96Wei]. 6 References 40Smi 43 Phi 87McA 90Mas 92Hor C S Smith, Trans. American Inst. Met. Eng., 1940, 137, 236-245. H W L Phillips, J.Institute of Metals, 1943, 69, 275-316. A J McAllister, J M Murray, Bull.AUoy Phase Diag, 1987, 8, 438-447. Τ B Massalski et al, Binary Alloy Phase Diagrams, 2 nd edition, 1990. Ρ J Horrocks, F H Hayes and N D Moulson, Thermochimica Acta, 1992, 204, 25-33. - 232
Table 2 Al-Fe-Mn results wt%Fe 0.5 1 2 3 Liquidus Temperatures (°C) heating 674.3 674.5 671.4 667.1 668.0 695.5 695.8 697.9 cooling 666.4 669.7 663.5 663.3 691.1 668.8 669.8 682.7 680.0 680.0 679.3 700.9 699.5 699.0 703.5 701.2 700.5 729.3 732.5 734.7 734.6 733.6 731.5 728.4 740.2 741.9 739.9 Secondary Separation Temps. (°C) 691.6 691.2 691.4 (694.3) 691.8 Solidus/Eutectic Temperatures (°C) heating 655.2 653.1(651) 652.8(646) 653.1(650) 654.5 654.7 653.3 650.9 652.4 652.5 652..1 652.4 651.1 650.2 650.2 cooling 655.7 655.4 655.2 654.8 655.2 655.1 656.0 653.5 653.1 651.9 652.0 651.4 654.7 654.3 654.6 651.2 652.6 94Hayl 94Hay2 96Wei F H Hayes, W T Chao and J A J Robinson, 'Experimental Methods of Phase Diagram Determination, ed J.E.Morral, R.S.Schiffman and S.M.Merchant, TMS, Warrendale, Penn.,USA, 101-111, 1994. F H Hayes, W Τ Chao and J A J Robinson, Journal of Thermal Analysis, 1994, 42, 745-758. F Weitzer, Ρ Rogl, F H Hayes, and J A J Robinson, "Phase Relations in the Aluminium-rich Part of the System: Aluminium -Iron-Manganese ", presented at the Hauptversammlung der Deutschen Gesellschaft für Materialkunde, May 1996, Stuttgart; in press Keramische Berichte, 1997" Deutsche Keramische Gesellschaft. - 233
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European Commission COST European c
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European Commission COST European c
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Preface The Final Workshop of the C
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COST 507 STRUCTURE Measurement and
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GRl: Mirtee S.A., Volos Mr.P.Polati
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D9 Dll Fl GR2 II NI S3 SF1 "Thermop
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A Summary of the COST 507 Action an
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Aluminium-based systems Titanium-ba
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An Example using the COST 507 Datab
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Appendix COST 507: Some Key Meeting
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Al - 0.5 Fe, 1 Mg, 0.8 Mn, 0.2 Si (
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Fig 4 Aluminium beverage cans. The
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Fig 6 High pressure compressor vane
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INTRODUCTION All of us are aware of
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In the interaction with materials a
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There was a first warning more than
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Some time ago, the well-known physi
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Today there is a whole range of ins
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The dimension of this reservoir inc
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REFERENCES [ 1 ] G. Petzow, "Man, M
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Trends in Application of Materials
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Raw Materials The Cycle of Material
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i LÌ i.'»Af·· iù^ VV.V.X. iTTa
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1600 OJ 1200 .« 1100 d 1000 900 Si
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Al Phase Relations in the Aluminium
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oundaries of the single phase regio
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Table 1 : Crystallographic Data of
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order to facilitate the evaluation
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(especially around 33 at% Mg) in or
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3.System Ti-Sn-Al-N. The investigat
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6) N.Durlu, U.Gruber, M.Pietzka, H.
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Summary of final report Directional
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calculate the thermodynamic mixing
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Introduction It is the aim of this
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Thermodynamic evaluations for high
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Figure 5 presents the calculated li
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There is a complete lack in the lit
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a.B5 ø.ia 0.15 0.20 0.25 0.30 0.35
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700 [53Phi] 800 +[90Kuz21 ]iquld a
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Thermodynamic Assessments, Experime
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AIN and TiNi_ x is also given. Vari
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satisfied the three requirements of
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84Bey R. Beyers, R. Sinclair, and M
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Material and Methods 2.1 Fabricatio
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3.4 Electronmicroscopy (SEM) and X-
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Tab. 3: Density of the Ti20Albase
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Tab.5. continued TÌ20A1 5CulONi Ti
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Fig. 3: ESMA and Xray diffraction
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Fig.7: Wetting angle of Ti 15A1 lOC
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Thermophysical Properties of Light
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Tab.2 Chemical composition of terna
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700 (AI)+AIFeS¡«_600 KS1275.1 l
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4.2 Thermal conductivity of industr
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4.3 AlSiZn alloys Electrical re
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94Jar/Bra G.Jaroma-Weiland, R.Brand
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MgZn9 (C 14) and Mg2Zn u in the Al
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The three Laves phases were describ
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References [13Ege] G. Eger, Z. Meta
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0.30 0.35 0.40 0.45 0.50 mole fract
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□ [48Koe] 600 500 400 0 0.1 0
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MggZn,, this work □ Single phase,
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Temperatures in °C 0.05 0.10 mole
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Table 2 : Alloy compositions Alloy
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All. Dy 50 Cpexp °C Cpadd Table 5
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Zn ¿Kl Si Fig. 2 : Position of the
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22.5 ■■ 7.5 Temperature ICI Tem
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.to 2.5 "lõõ soo iÍOõ dOõ rtõ
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GR2 Differential Scanning Calorimet
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Time (x10 3 sec) Fig. 1. DSC Thermo
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solidification. It can be seen that
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4. Conclusions Differential scannin
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COST 507 - ROUND Π UNIT II SEZIONE
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[96Sac] The Rrich regions of the
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List of publications in the framewo
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2Contributions: oral or posters p
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1996 REPORT 2 s ' PART: ACTIVITY CA
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[96Sei] Excess Gibbs energy coeffic
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List of publications in the framewo
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Proc. :7 th Meeting on "Syntheses a
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2.1 Solid solubility measurements T
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eviews by Rivlin and Raynor [81 Riv
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inaires. Thesis, Universite Scienti
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Table 1. Review of the ternary phas
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L) Liq+bcc=FeSi+t_1 M) Liq+t 1=FeSi
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Extrapolations based on Ti-C-N S3 B
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value has been accepted in all thre
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with high precision whereas Jonsson
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only fit the hightemperature asym
Page 185 and 186: Jonsson combined his descriptions o
Page 187 and 188: Table II. Solubility product of TiC
Page 189 and 190: Ti-C, Z.Metallkd. 86 (1995) 5 319
Page 191 and 192: 1000 1500 2000 2500 3000 Τ (K) Fig
Page 193 and 194: o Oí o 3 4 5 6 7
Page 195 and 196: M^øD^ O Kelley(1944) • Kelley an
Page 197 and 198: — cale, with Dumitrescu (1997) -
Page 199 and 200: € gfc-π m-, .-π-, π-π .-saa J
Page 201 and 202: +graph 0 TiN 0.2 0.4 0.6 X TiC 0.8
Page 203 and 204: Binder et al (1992) TiN 1423 K ■
Page 205 and 206: 0.08 600°C 700°C 800°C 900°C 10
Page 207 and 208: [59Sto]: Ä600°C □ 70D°C O8Q0°
Page 209 and 210: 2000 Cale, with Saunders (1997) —
Page 211 and 212: An Experimental Investigation of th
Page 213 and 214: An Experimental Investigation of th
Page 215 and 216: 211 -
Page 217 and 218: EXPERIMENTAL INVESTIGATION OF THE C
Page 219 and 220: Fig.1 SEM micrographs of CuMgZr
Page 221 and 222: ■ 888 24 HSM^«" 16—19 3 À I
Page 223 and 224: Thermodynamic Evaluations of the Al
Page 225 and 226: Fcc_Al aves_C15 ONU ΔΝ12 αΝ13
Page 227 and 228: 2.2 Assessment The optimisation of
Page 229 and 230: 0.50 0.45 CulOZr7/ 0. 40 Or ^ 0.3
Page 231 and 232: References [71Kri] Kripyakevich, P.
Page 233 and 234: Kejun Zeng and Marko Hämäläinen,
Page 235: for detennining phase boundary and
Page 239 and 240: •00 Γ Ι I I I ~ LIQUID S^ 7iO
Page 241 and 242: the observed A2-B2 ordering. This p
Page 243 and 244: 1473K Ahmed & Flower [94 Ahmi] 0.2
Page 245 and 246: 900K Paruchuri & Massalski [91Par]
Page 247 and 248: BCC_B2#2 TI3RL TIPL BCC B2#2 TIRL
Page 249 and 250: 0.2 0.3 0.4 0.5 X(LIQ,V) Figure 15
Page 251 and 252: 1 Introduction and Overview of the
Page 253 and 254: at least 95% by Fe, possibly 99%, a
Page 255 and 256: 8 References 43Phi H W L Phillips,
Page 257 and 258: 1050 1000 Isopleth, Al - Si - 4 wt
Page 259 and 260: Al-Mn-Si 873 K 0.90 Liquid 0.80 0.7
Page 261 and 262: A Thermochemical Assessment of Data
Page 263 and 264: certainly due to the appearance of
Page 265 and 266: Materials Science Centre, November
Page 267 and 268: 1400 Al-Mn Fig 2 Calculated partial
Page 269 and 270: 1000 ι AlMn I Ι 950 Liquid E ω
Page 271 and 272: Al-Fe-Mn 843 K 0.90 0.80 0.70 0.60
Page 273 and 274: AlFeMn section at 2 wt% Mn co
Page 275: 0.50 0.45 0.40-1 LU £ 0.35 LU 0.30
Page 279: European Commission EUR 18171 —CO
Page 284: NOTICE TO THE READER Information on
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