Hot Cracking Phenomena in Welds III by S. Kou, V. Firouzdor, I.W. Haygood (auth.), Thomas

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By S. Kou, V. Firouzdor, I.W. Haygood (auth.), Thomas Böllinghaus, John Lippold, Carl E. Cross (eds.)

This is the 3rd in a chain of compendiums dedicated to the topic of weld scorching cracking. It comprises 22 papers awarded on the 3rd foreign sizzling Cracking Workshop in Columbus, Ohio united states in March 2010. within the context of this workshop, the time period “hot cracking” refers to increased temperature cracking linked to both the weld steel or heat-affected sector. those sizzling cracking phenomena comprise weld solidification cracking, HAZ and weld steel liquation cracking, and ductility-dip cracking. The publication is split into 3 significant sections in accordance with fabric kind; particularly aluminum alloys, steels, and nickel-base alloys. every one of those sections starts with a keynote paper from widespread researchers within the box: Dr. Sindo Kou from the college of Wisconsin, Dr. Thomas Böllinghaus from BAM and the collage of Magdeburg, and Dr. John DuPont from Lehigh college. The papers contained inside contain the newest perception into the mechanisms linked to sizzling cracking in those fabrics and techniques to avoid cracking via fabric choice, procedure amendment, or different potential. the 3 Hot Cracking Phenomena in Welds compendiums mixed include a complete of sixty four papers and signify the easiest number of papers concerning scorching cracking ever assembled.

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Kou et al. Figure 19 shows the effect of the solidification path on the freezing temperature range and the hot tearing susceptibility for Mg-Al-Ca ternary alloys in the Mg-rich corner. The liquidus projection according to Suzuki et al. [44] is shown in Fig. 19a. Alloys with a solidification path ending at the ternary eutectic point (E) tend to have a narrower freezing range because of the ternary eutectic temperature is relatively ◦ high, that is, 514 C (Fig. 19b). On the other hand, alloys with a solidification path reaching the ternary peritectic point (U) and ending at the binary eutectic point (Mg17 Al12 ) tend to have a wider freezing range because the binary eutectic point ◦ (Mg17 Al12 ) is much lower, that is, 440 C (Fig.

3 Classification of the main hot cracking tests 46 A. Niel et al. The purpose of this research is to explore ways for optimizing the welding parameters with respect to hot tearing. For that, a new hot tearing test has been developed to better understand the influence of the process parameters on the sensitivity to crack initiation, according to the study of the interactions process – mechanical loading and process – solidification microstructure. The other originality of this study is that we combine experimental and numerical results to study these interactions.

G. Titan Missile casing) using a 4043 filler metal. It should also be noted that both Alloys 2014 and 2024 are much higher in Mn, Si, and Fe content than Alloy 2219 (Table 1). Welds and Castings Autogenous, bead-on-plate, partial penetration, gas-tungsten arc welds were made on 7 mm thick plate using the welding parameters given in Table 2. Coupon size was 23 mm wide × 140 mm long. Weld bead dimensions varied slightly with alloy and were approximately 8 mm wide × 4 mm deep. ) into the moving weld pool.

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