76Cr12Mn12N合金粉末,研究其機(jī)械合金化過程,并對(duì)機(jī)械合金化的機(jī)制進(jìn)行探討。研究表明,棒磨4小時(shí)時(shí)粉末就可以完全合金化,并且隨著棒磨時(shí)間增加,衍射峰逐漸寬化,衍射強(qiáng)度逐漸降低。粉末顆粒形貌也逐漸類球形化。機(jī)械合金化得到的非球形固溶體粉末也可用于激光熔化沉積(LMD)增材制造技術(shù),解決了LMD對(duì)球形粉末的局限性,機(jī)械合金化粉末通過LMD技術(shù)得到的厚熔覆涂層具有較好的耐蝕性,其物相結(jié)構(gòu)是BCC+FCC的雙相結(jié)構(gòu),同時(shí)在打印過程中有Cr2N生成,維氏硬度最高達(dá)到456.3HV。"/>

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機(jī)械合金化制備Fe-Cr-Mn-N奧氏體不銹鋼厚熔覆涂層的研究
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作者單位:

1.西安交通大學(xué)材料科學(xué)與工程學(xué)院;2.中國(guó)船舶重工集團(tuán)公司第七二五研究所 海洋腐蝕與防護(hù)重點(diǎn)實(shí)驗(yàn)室 青島

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海洋腐蝕與防護(hù)重點(diǎn)實(shí)驗(yàn)室開放研究(項(xiàng)目號(hào)6142901180402)


Preparation of Fe-Cr-Mn-N austenitic stainless steel thick cladding coating by mechanical alloying
Author:
Affiliation:

1.School of Materials Science and Engineering,Xi’an Jiaotong University,State Key Laboratory ofMetal Material Strength,Xi’an Shan Xi;2.State Key Laboratory for Marine Corrosion and Protection,Luoyang Ship Material Research Institute LSMRI

Fund Project:

State Key Laboratory for Marine Corrosion and Protection

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    摘要:

    本實(shí)驗(yàn)采用機(jī)械合金化方法制備了Fe76Cr12Mn12N合金粉末,研究其機(jī)械合金化過程,并對(duì)機(jī)械合金化的機(jī)制進(jìn)行探討。研究表明,棒磨4小時(shí)時(shí)粉末就可以完全合金化,并且隨著棒磨時(shí)間增加,衍射峰逐漸寬化,衍射強(qiáng)度逐漸降低。粉末顆粒形貌也逐漸類球形化。機(jī)械合金化得到的非球形固溶體粉末也可用于激光熔化沉積(LMD)增材制造技術(shù),解決了LMD對(duì)球形粉末的局限性,機(jī)械合金化粉末通過LMD技術(shù)得到的厚熔覆涂層具有較好的耐蝕性,其物相結(jié)構(gòu)是BCC+FCC的雙相結(jié)構(gòu),同時(shí)在打印過程中有Cr2N生成,維氏硬度最高達(dá)到456.3HV。

    Abstract:

    In the experiment, Fe76cr12mn12n alloy powder was prepared by mechanical alloying. The mechanical alloying process and mechanism were studied. The results show that the powder can be fully alloyed after 4 hours of rod milling. The diffraction peak widens and the diffraction intensity decreases with the increase of rod milling time,. The morphology of the powder particles gradually became spherical. The non-spherical solid solution powders obtained by mechanical alloying can also be used in laser melting deposition (LMD) additive manufacturing technology, which solves the limitation of LMD to spherical powder. The thick cladding coating obtained by LMD technology has good corrosion resistance, and it shows BCC+ FCC dual phase structure. Meanwhile, Cr2N is generated in the printing process. the Vickers hardness of thick coating could reach up to 456.3 HV.

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高帥龍,孫德福,谷臻,孫崇峰,席生岐,彭文山.機(jī)械合金化制備Fe-Cr-Mn-N奧氏體不銹鋼厚熔覆涂層的研究[J].稀有金屬材料與工程,2022,51(1):321~326.[Gao Shuailong, Sun Defu, Gu Zhen, Sun Chongfeng, Xi Shengqi, Peng Wenshan. Preparation of Fe-Cr-Mn-N austenitic stainless steel thick cladding coating by mechanical alloying[J]. Rare Metal Materials and Engineering,2022,51(1):321~326.]
DOI：10.12442/j. issn.1002-185X.20210075

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  • 收稿日期:2021-01-24
  • 最后修改日期:2021-04-21
  • 錄用日期:2021-04-30
  • 在線發(fā)布日期: 2022-02-09
  • 出版日期: 2022-01-28