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Hot cracking in cas...
Hot cracking in cast alloy 718
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- Singh, Sukhdeep, 1988 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Department of Industrial and Materials Science, Gothenburg, Sweden
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- Andersson, Joel Håkan, 1981 (författare)
- Högskolan Väst,Avdelningen för svetsteknologi (SV),PTW
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(creator_code:org_t)
- 2018-01-30
- 2018
- Engelska.
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Ingår i: Science and Technology of Welding and Joining. - : Informa UK Limited. - 1743-2936 .- 1362-1718. ; 23:7, s. 568-574
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Abstract
Ämnesord
Stäng
- Hot cracking susceptibility of the Fe–Ni-based precipitation hardening cast superalloy Alloy 718 was studied by Varestraint weldability testing. The effect of two hot isostatic pressing (HIP) treatments commonly employed in the aerospace industry was investigated in reference to the as cast condition. It was found that the heat affected zone (HAZ) liquation cracking susceptibility increased for samples with pre-weld HIP treatments. The as cast condition disclosed the best response for liquation cracking followed by HIP-1120 (1120°C/4h (HIP) + 1050°C/1h and furnace cooling to 650°C/1h in vacuum + 950°C/1h) and HIP-1190 (1190°C/4h (HIP) + 870°C/10h and furnace cooling to 650°C/1h in vacuum + 950°C/1h). The amount of the secondary precipitates and base metal grain size was found to be important parameters influencing the cracking susceptibility. Regarding solidification cracking susceptibility, the three conditions appear to behave similarly.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- Hot cracking
- solidification cracking
- Varestraint testing
- alloy 718
- liquation cracking
- hot isostatic pressing
- Manufacturing and materials engineering
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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