Alloy-4J29 ba wai kawai yana da faɗaɗa zafi kamar gilashi ba, har ma ana iya yin lanƙwasa faɗaɗa zafi mara layi sau da yawa don daidaita gilashi, don haka yana ba da damar haɗin gwiwa ya jure yanayin zafi mai faɗi. A kimiyyance, yana haɗuwa da gilashi ta hanyar matsakaicin oxide Layer na nickel oxide da cobalt oxide; rabon ƙarfe oxide yana da ƙasa saboda raguwarsa da cobalt. Ƙarfin haɗin ya dogara sosai akan kauri da halayen oxide Layer. Kasancewar cobalt yana sa Layer oxide ya fi sauƙi ya narke kuma ya narke a cikin gilashin da aka narke. Launin toka, launin toka-shuɗi ko launin toka-kasa yana nuna kyakkyawan hatimi. Launin ƙarfe yana nuna rashin oxide, yayin da launin baƙi yana nuna ƙarfe da aka yi oxidized sosai, a duka yanayi biyu yana haifar da rauni a haɗin gwiwa.
Aikace-aikace:Ana amfani da shi galibi a cikin kayan aikin injinan lantarki da kuma sarrafa fitar da hayaki, bututun girgiza, bututun ƙonewa, magnetron na gilashi, transistor, toshe hatimi, relay, jagorar da'irori masu haɗawa, chassis, maƙallan ƙarfe da sauran hatimin gidaje.
Tsarin al'ada%
| Ni | 28.5~29.5 | Fe | Bal. | Co | 16.8~17.8 | Si | ≤0.3 |
| Mo | ≤0.2 | Cu | ≤0.2 | Cr | ≤0.2 | Mn | ≤0.5 |
| C | ≤0.03 | P | ≤0.02 | S | ≤0.02 |
Ƙarfin Tashin Hankali, MPa
| Lambar sharaɗi | Yanayi | Waya | Zirin |
| R | Mai laushi | ≤585 | ≤570 |
| 1/4I | 1/4 Mai Tauri | 585~725 | 520~630 |
| 1/2I | 1/2 Mai Tauri | 655~795 | 590~700 |
| 3/4I | 3/4 Mai Tauri | 725~860 | 600~770 |
| I | Mai Tauri | ≥850 | ≥700 |
| Yawan yawa (g/cm3) | 8.2 |
| Juriyar lantarki a 20ºC (Ωmm2/m) | 0.48 |
| Yanayin zafin jiki na resistivity(20ºC ~ 100ºC)X10-5/ºC | 3.7~3.9 |
| Ma'aunin Curie Tc/ºC | 430 |
| Modulus Mai Rage Ragewa, E/ Gpa | 138 |
Faɗaɗawa mai yawa
| θ/ºC | α1/10-6ºC-1 | θ/ºC | α1/10-6ºC-1 |
| 20-60 | 7.8 | 20~500 | 6.2 |
| 20~100 | 6.4 | 20~550 | 7.1 |
| 20~200 | 5.9 | 20~600 | 7.8 |
| 20~300 | 5.3 | 20~700 | 9.2 |
| 20~400 | 5.1 | 20~800 | 10.2 |
| 20~450 | 5.3 | 20~900 | 11.4 |
Maida wutar lantarki ta thermal
| θ/ºC | 100 | 200 | 300 | 400 | 500 |
| λ/ W/(m*ºC) | 20.6 | 21.5 | 22.7 | 23.7 | 25.4 |
| Tsarin maganin zafi | |
| Maganin rage damuwa don rage damuwa | An dumama shi zuwa 470 ~ 540ºC kuma a riƙe na tsawon awanni 1 ~ 2. Sanyaya ƙasa |
| rage zafi | A cikin injin dumama zuwa 750 ~ 900ºC |
| Lokacin riƙewa | Minti 14 ~ awa 1. |
| Saurin sanyaya | Ba a sanyaya fiye da 10 ºC/min ba zuwa 200 ºC |
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