In the riwaayah of Khalaf an Hamzah, the Idghaam is short and sharp but is there a nasal sound?

Question
As Salaamu Alaykum,

In the riwaayah of Khalaf an Hamzah, the Idghaam is short and sharp but is there a nasal sound for this Idghaam in the same way as Hafs riwaayah?
For example:
- Surah Rum verse 18: ['ashiyyaw wa heena]
- Surah Rum verse 21: [mawaddataw wa rahma] & [liqawmee yatafakkaruun]
- Surah Rum verse 23: [liqawmee yasma'uun]
- Surah Rum verse 24: [khawfaw watama'aw wa yunazzilu] & [liqawmee ya'qiluun]
JazakAllahu Khair for your help.

Answer
Wa alaikum assalaam wa rahmatullahi wa barakaatuh
Khalaf 3an Hamzah has a complete idghaam of the noon saakinah and tanween into the wow and ya'.  Since it is a complete merging there is nothing left from the noon saakinah and therefore no ghunnah.  In this way it is different from Hafs, and actually from the other qira'aat also. 
Wa iyyakum.