熱處理工藝對17-4PH鋼耐海水腐蝕性能的影響

熱處理工藝對17-4PH鋼耐海水腐蝕性能的影響EFFECT OF HEAT TREATMENT PROCESSES ON SEAWATER CORROSION RESISTANCE PROPERTY OF 17-4PH STEEL

運用極化曲線、循環極化曲線等電化學方法研究了17-4PH鋼經不同工藝熱處理后的耐海水腐蝕性能，并對腐蝕形貌和顯微組織進行了觀察和分析。結果表明：該不銹鋼經固溶+調整處理后，在520℃時效4 h時可獲最佳的耐海水腐蝕性能，且綜合力學性能優良。在一定的溫度和時間區間內，隨著時效溫度的升高及時效時間的延長，馬氏體板條呈逐步細化的趨勢且晶間析出物逐漸增多。在不同溫度及時間的時效處理過程中，富Cu沉淀相的析出、長大及逆轉變奧氏體的產生是導致其耐蝕性產生差異的主要原因。

The corrosion resistance property in artificial seawater of 17-4PH steel after different heat treatment processes was investigated by electrochemical tests, and the corrosion morphology and microstructure were also analyzed. The results indicated that after solution and intermediate treatments the steel showed the best corrosion resistance property and excellent mechanical properties while aging at 520℃ for 4 hours. The microstructure became finer and the precipitation in grain boundaries increased with the increase of aging temperature and time in a certain range. The reverted austenite and copper precipitates that separated out while aging treatment were the major determinants of the corrosion resistance property of 17-4PH steel.

全文下載：https://pan.baidu.com/s/1EyTP_YCfFaz4RDPxHCVEVA?

作為值得信賴的合作伙伴和高品質金屬合金的半成品供應商，通項公司擁有完善的服務體系和專業的團隊。在同客戶交易的過程中，我們力求根據不同的應用需求將我們的產品做到精益求精。針對當前和未來的市場需求，通項公司致力于為客戶提供優秀的金屬材料解決方案。

TXCO 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. TXCO develops the superior alloy material solutions for current and future challenges.

獲取更多我們供應的產品和服務信息，請致電086-021-3113 6111或發電子郵件service@txco.ltd聯系我們，您也可以通過微信，微博，領英，臉書，推特和谷歌+與我們互動。

For more information on the products and services that we supply, call us at 086-021-3113 6111 or email us at service@txco.ltd. You can also get in touch on social media, we are constantly active on Weixin, Weibo, LinkedIn, Facebook, Twitter and Google+.