Curle, UA2010-09-282010-09-282010-09Curle, UA. 2010. Semi-solid near-net shape rheocasting of heat treatable wrought aluminum alloys. Transactions of Nonferrous Metals Society of China, Vol. 20(9), pp 1719-17241003-6326http://www.ysxbcn.com/html_readOnline/En_14394.htmlhttp://hdl.handle.net/10204/4383Copyright: 1997-2008 Editorial office of Transactions of Nonferrous Metals Society of ChinaFlexibility of the CSIR-RCS, induction stirring with simultaneous air cooling process, in combination with high pressure die casting is successfully demonstrated by semi-solid rheocasting of plates performed on commercial 2024, 6082 and 7075 wrought aluminum alloys. Tensile properties were measured for the above mentioned rheocast wrought aluminum alloys in the T6 condition. The results showed that tensile properties were close to or even in some cases exceeded the minimum specifications. The yield strength and elongation of rheocast 2024-T6 exceeded the minimum requirements of the wrought alloy in the T6 condition but the ultimate tensile strength achieved only 90% of the specification because the Mg content of the starting alloy was below the commercial alloy specification. The strengths of rheocast 6082-T6 exceeded all of the wrought alloy T6 strength targets but the elongation only managed 36% of the required minimum due to porosity, caused by incipient melting during solution heat treatment, and the presence of fine intermetallic needles in the eutectic. The yield strength of rheocast 7075 exceeded the required one and the ultimate tensile strength also managed 97% of the specification; while the elongation only reached 46% of the minimum requirement also due to incipient melting porosity caused during the solution heat treatment process.enNonferrous metalsHigh pressure die castingAluminum alloysAs-cast conditionT6 treatmentIncipient meltingRheocastSemi-solid near-net shape rheocasting of heat treatable wrought aluminum alloysArticleCurle, U. (2010). Semi-solid near-net shape rheocasting of heat treatable wrought aluminum alloys. http://hdl.handle.net/10204/4383Curle, UA "Semi-solid near-net shape rheocasting of heat treatable wrought aluminum alloys." (2010) http://hdl.handle.net/10204/4383Curle U. Semi-solid near-net shape rheocasting of heat treatable wrought aluminum alloys. 2010; http://hdl.handle.net/10204/4383.TY - Article AU - Curle, UA AB - Flexibility of the CSIR-RCS, induction stirring with simultaneous air cooling process, in combination with high pressure die casting is successfully demonstrated by semi-solid rheocasting of plates performed on commercial 2024, 6082 and 7075 wrought aluminum alloys. Tensile properties were measured for the above mentioned rheocast wrought aluminum alloys in the T6 condition. The results showed that tensile properties were close to or even in some cases exceeded the minimum specifications. The yield strength and elongation of rheocast 2024-T6 exceeded the minimum requirements of the wrought alloy in the T6 condition but the ultimate tensile strength achieved only 90% of the specification because the Mg content of the starting alloy was below the commercial alloy specification. The strengths of rheocast 6082-T6 exceeded all of the wrought alloy T6 strength targets but the elongation only managed 36% of the required minimum due to porosity, caused by incipient melting during solution heat treatment, and the presence of fine intermetallic needles in the eutectic. The yield strength of rheocast 7075 exceeded the required one and the ultimate tensile strength also managed 97% of the specification; while the elongation only reached 46% of the minimum requirement also due to incipient melting porosity caused during the solution heat treatment process. DA - 2010-09 DB - ResearchSpace DP - CSIR KW - Nonferrous metals KW - High pressure die casting KW - Aluminum alloys KW - As-cast condition KW - T6 treatment KW - Incipient melting KW - Rheocast LK - https://researchspace.csir.co.za PY - 2010 SM - 1003-6326 T1 - Semi-solid near-net shape rheocasting of heat treatable wrought aluminum alloys TI - Semi-solid near-net shape rheocasting of heat treatable wrought aluminum alloys UR - http://hdl.handle.net/10204/4383 ER -