Fe-13Cr-5Ni馬氏體不銹鋼在連續加熱過程中兩相區的奧氏體生長行為

宋鵬程; 柳文波; 劉璐; 張弛; 楊志剛

doi:10.13374/j.issn2095-9389.2017.01.009

Fe-13Cr-5Ni馬氏體不銹鋼在連續加熱過程中兩相區的奧氏體生長行為

doi: 10.13374/j.issn2095-9389.2017.01.009

1) 清華大學材料學院先進材料教育部重點實驗室, 北京 100084
2) 西安交通大學核科學與技術學院, 西安 710049
3) 國核(北京) 科學技術研究院, 北京 102209

基金項目:

國家自然科學基金資助項目（51471094，2015GB118000，2015CB654802）

詳細信息

中圖分類號: TG142.71
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出版歷程
- 收稿日期: 2016-03-24

Austenite growth behavior of Fe-13Cr-5Ni martensitic stainless steel under continuous heating

1) Key Laboratory of Advanced Materials of the Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
2) School of Nuclear Science and Technology, Xian Jiaotong University, Xi'an 710049, China
3) State Nuclear Power Research Institute, Beijing 102209, China

摘要

摘要: 通過光學顯微鏡、透射電子顯微鏡、X射線衍射儀以及顯微硬度儀研究Fe-13Cr-5Ni馬氏體不銹鋼在加熱過程中的組織轉變行為.結果表明，Fe-13Cr-5Ni鋼在10℃·s^-1的加熱速率下，加熱至奧氏體單相區，冷卻至室溫后具有明顯的“組織遺傳冶現象.奧氏體以“針狀冶形式在馬氏體板條界處形核并沿著馬氏體板條界長大，與母相間保持Kurdjumov-Sachs （K-S）位向關系.加熱至兩相區不同溫度然后淬火至室溫，奧氏體的量隨兩相區保溫溫度的升高先增加再減少，650℃時對應室溫下殘余奧氏體的極大值，并且這一變化趨勢與試樣顯微硬度測試結果所得結論一致.
- 馬氏體不銹鋼 /
- 加熱 /
- 奧氏體 /
- 生長 /
- 記憶效應
Abstract: Microstructure transformation of Fe-13Cr-5Ni martensitic stainless steel during continuous heating was investigated by optical microscopy, transmission electronic microscopy, X-ray diffraction, and microhardness testing. Experimental results show that at the heating rate of 10℃·s^-1,there is an austenite memory phenomenon after heating to the austenite phase region and quenching to room temperature. Austenite tends to nucleate and grow at lath boundaries in an acicular shape, which has Kurdjumov-Sachs (K-S) orientation relationships with the parent phase. Furthermore, heating to different temperatures in the dual-phase region and quenching to room temperature, the amount of retained austenite in samples firstly increases, gets to the peak at 650℃, and then decreases with the increasing of annealing temperature. This trend is coincident with the trend of micro-hardness of the same samples.
- martensitic stainless steel /
- heating /
- austenite /
- growth /
- memory effects

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參考文獻(18)

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