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熱軋生產工藝對C70250合金力學性能和導電性能的影響
發布人：上海艾荔艾金屬材料有限公司www.jshcn.cn
更新時間：2015-12-17
在模擬工業化生產條件下研究C70250合金的熱軋、固溶及時效處理工藝，對比C70250合金板坯的熱軋、熱軋+時效、熱軋+冷軋+時效后合金的力學性能與導電性能，同時研究空冷與水冷對材料力學性能的影響。
熱軋生產工藝對C70250合金力學性能和導電性能的影響Effects of hot rolling process on mechanical and?electrical properties of C70250 alloy
在模擬工業化生產條件下研究C70250合金的熱軋、固溶及時效處理工藝，對比C70250合金板坯的熱軋、熱軋+時效、熱軋+冷軋+時效后合金的力學性能與導電性能，同時研究空冷與水冷對材料力學性能的影響。結果表明：時效析出為C70250合金的主要強化手段，時效前的塑性加工能使合金強度提高4%~5%。XRD分析表明：C70250合金鑄錠經熱軋開坯，在575~725 ℃之間保溫1 h，析出相以Ni2Si為主；合金開軋與終軋溫度應控制在(900±50)~725 ℃之間，熱軋板冷卻速度不小于2.5 ℃/s；固溶處理制度為(900±50) ℃、1~3 h；時效工藝為400~??? 450 ℃、4~6 h，該工藝制備的C70250合金抗拉強度不小于644 MPa，電導率IACS為40%，伸長率為8%。
Hot rolling, solid solution and ageing treatment of C70250 alloy were investigated by mimicking the commercial process. The mechanical and electrical properties of C70250 alloy were analyzed under hot rolling state, aging after hot rolling and aging after cold rolling following hot rolling. The effects of quenching and cooling by radiation on the mechanical properties were also investigated. The results show that aging precipitation is the primary strengthening method for the C70250 alloy. The plastic working prior to the aging process improves the tensile strength by 4%?5%. The hot working temperature should be controlled between (900±50) ℃ and 725 ℃ and followed with on-line quenching. The cooling velocity of hot rolling plate is equal to or higher than 2.5 ℃/s. XRD analysis results show that the main precipitation phase is Ni2Si after C70250 alloy is hot rolled and kept at 575?725 ℃ for 1 h. The preferable off-line treatment process is heated at (900±50) ℃ for 1?3 h. The suitable aging process is 400?450 ℃ for about 4?6 h. The tensile strength, electrical conductivity (IACS) and elongation of the treated alloy are larger than 644 MPa, 40% and 8%, respectively.
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AILIAI has been a reliable partner and supplier of sophisticated and high-quality semi-finished products maed of alloys. In dialogue with our customers, we optimise our products to meet the specific application requirements. AILIAI develops the best alloy material solutions for current and future challenges.
獲取更多我們供應的合金和服務信息，請致電086-021-67660801或發電子郵件kefu@ailiaigroup.com聯系我們，您也可以通過微博和微信和我們互動。
For more information on the alloys and services that we supply,?call us?at 086-021-67660801 or email us at kefu@ailiaigroup.com. You can also get in touch on social media, we are constantly active on?Weibo?and?Weixin.
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